Polymer-Based Organic Photovoltaic Solar Cells

High-efficiency ternary quasi-planar heterojunction organic solar cells with improved stability and performance compared to prior ternary cells. The cells have a composite active layer containing a donor polymer (PBDB-TF) and two acceptor polymers (BTP-BO-4Cl and BTP-BO) that are phase-separated. The acceptors have different terminal functional groups to enhance binding. An additive (1,8-diiodooctane) is added to the acceptor composite to improve light absorption and hole mobility. The phase separation and additive help prevent agglomeration and stabilize the cell.

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A conjugated polymer solution that enables the preparation of flexible organic solar cells with improved mechanical stability and thermal resistance through the synergistic effect of non-covalent interactions between a chlorine-containing polyolefin and carbonyl-containing conjugated polymers. The solution combines a conjugated polymer with a chlorine-containing polyolefin, enabling enhanced film properties through the formation of non-covalent interactions that reduce aggregation and promote cross-linking. This approach enables the fabrication of flexible organic solar cells with superior mechanical performance compared to conventional methods.

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Organic solar cells with improved durability and performance under various environmental conditions. The solar cell comprises a hole-transporting polymer with enhanced thermal and humidity stability, combined with a photoelectric conversion element and organic thin-film structure. The polymer enables efficient conversion of weak light sources, while maintaining high mobility and durability across temperature and humidity ranges.

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High-efficiency quaternary organic solar cell with vertical phase separation in the active layer for improved charge extraction. The cell uses a blend of four materials - wide bandgap polymer donor PM6 and three non-fullerene acceptors L8-B0, BTP-S8, and BTP-S2. The specific choice of materials allows complementary absorption and controlled morphology to optimize charge collection. The cell structure is anode/modification layer/PM6:(L8-B0, BTP-S8, BTP-S2)/cathode modification layer/cathode.

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Inverted polymer photovoltaic cell with improved performance through a novel anode interlayer design. The cell comprises an active layer with photoactive organic polymer donors and acceptors, a buffer layer comprising PEDOT:PSS, and a second buffer layer comprising heteropolyacid and amino compounds. The second buffer layer is interposed between the PEDOT:PSS layer and the active layer, creating a uniform interface. This design enhances adhesion between the active layer and anode interlayer, while maintaining high electron mobility and preventing degradation through water management.

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Organic solar cells that achieve higher power conversion efficiency through the use of well-formed polymer-based electron acceptor materials. The solar cells incorporate a photoactive layer with a bilayer structure featuring an n-type organic material layer and a p-type organic material layer, where the p-type layer comprises a polymer containing non-fullerene-based electron acceptor materials. This polymer-based acceptor system enables enhanced electron transport and collection, leading to improved solar cell efficiency compared to conventional organic solar cells.

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Organic solar cell with improved efficiency and preparation method. The cell structure has a sequential arrangement of conductive base, buffer layers, and active layer containing electron donor PM6 and non-fullerene acceptor N3, without fullerene. The active layer also contains a small amount of bis(pentafluorophenyl)zinc. This composition and order of materials in the active layer improves the conversion efficiency of organic solar cells. The cell is prepared by coating the layers in sequence on a conductive substrate, annealing after each layer, and adding the top electrode.

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Polymeric photovoltaic cells with inverted structure comprising a conjugated polymer containing an anthradithiophene derivative and an organic electron-acceptor compound, where the conjugated polymer comprises an anthradithiophene derivative with a benzodithiophene-4,8-dione derivative.

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Organic solar cells with enhanced power conversion efficiency through the use of a novel two-dimensional conjugated polymer active layer. The active layer comprises a donor polymer with a π-conjugated structure that combines with a donor material to form a non-fullerene-based acceptor system. The donor polymer achieves high open-circuit voltage and short-circuit current through its π-conjugated structure, while the donor material provides electron acceptor capabilities. The resulting active layer composition enables high power conversion efficiency in organic solar cells, particularly when using non-fullerene materials.

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Electron transport layer for organic photovoltaic devices that enhances charge collection efficiency through individualized carbon nanotube dispersion. The layer comprises a conjugated polymer soluble in alcohol and carbon nanotubes, with the polymer selectively dispersed in a carbon nanotube solution. The dispersion enables individual carbon nanotube strands to maintain their optical properties, resulting in a uniform charge collection across the photovoltaic device. The layer is applied between the photoactive layer and the electrodes, providing improved charge collection efficiency compared to conventional carbon nanotube-based solutions.

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High-stability translucent all-polymer solar cell device based on light management engineering and preparation method. The device comprises a substrate, transparent anode, hole transport layer, active layer, cathode interface layer, and transparent cathode. The active layer is a thin film with a bulk heterojunction structure containing electron donor and acceptor materials, with donor material to acceptor material mass ratio ranging from 1:0.1 to 1:10. The device achieves high light transmission while maintaining stability through precise light management engineering.

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A semi-transparent organic photovoltaic cell using conductive polymer electrodes that achieves high efficiency while reducing manufacturing complexity. The cell incorporates a conductive polymer layer that simultaneously functions as an electrode and hole transport layer, eliminating the need for separate metal electrodes. The polymer layer is formed through a solution process, enabling rapid manufacturing and cost-effective production of the transparent photovoltaic cell.

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Metal oxide electron collecting layer for inverted organic solar cells with enhanced power conversion efficiency and reduced production costs. The layer comprises a nano-scale crater structure with a non-fullerene organic material, enabling efficient electron collection through the crater's unique surface properties. The crater structure is fabricated through a low-temperature process, allowing for flexible manufacturing while maintaining superior electron collection performance compared to conventional fullerene-based materials. The resulting inverted organic solar cell achieves higher power conversion efficiency than conventional organic solar cells, with a production process that can be performed at temperatures as low as 150°C.

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High-efficiency organic solar cells based on poly(3-hexylthiophene) achieve enhanced solar conversion efficiency through novel non-fullerene acceptor architectures. The approach involves modifying the central unit of these non-fullerene acceptors to incorporate spirofluorene or dithiophene units, which enables precise energy level matching with poly(3-hexylthiophene) while maintaining broad light absorption. These modified acceptors exhibit improved carrier mobility and Voc, leading to higher PCE values compared to conventional P3HT-based solar cells.

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Polymer photovoltaic cells with inverted structures that achieve higher efficiency than conventional organic solar cells. The cells incorporate an anode buffer layer comprising an orifice transport material, where the transport material is prepared through a process involving an aqueous solution of molybdenum oxide. This anode buffer layer enables efficient electron transport between the active layer and counter electrode, while maintaining the cell's open circuit voltage and current density over time. The anode buffer layer can be prepared through various deposition techniques, including vacuum evaporation, centrifugal coating, and gravure printing.

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Organic solar cells that achieve higher power conversion efficiency through optimized charge carrier transport layers. The cells employ a single molecular material donor and a polymer material as the charge carrier layer, with the donor serving as both the electron donor and hole donor. This approach eliminates the need for separate electron and hole transport layers, reducing manufacturing complexity and costs. The donor material is a single molecular compound, while the polymer material is a non-crystalline copolymer. The polymer material provides enhanced charge carrier mobility and stability, while the molecular compound donor enables efficient charge separation.

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Polymer solar cells with enhanced energy conversion efficiency through a novel bulk heterojunction architecture. The cells feature a PTB7/PC71BM active layer, which combines the benefits of both organic and inorganic photovoltaic materials. The active layer is prepared through a novel process involving a chlorobenzene solution of PTB7 and PC71BM, allowing for precise control over the organic material composition. The architecture incorporates a cross-linked structure that facilitates efficient photogenerated exciton dissociation and charge carrier transport, leading to improved solar cell performance compared to conventional bulk heterojunction structures.

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High-efficiency ternary organic solar cells that achieve significant increases in short-circuit current density while maintaining high open-circuit voltage. The ternary solar cell incorporates a third component that is complementary to the original binary blend film, enabling broadened light absorption and enhanced spectral response. This complementary component enables the formation of a continuous energy level structure across the solar spectrum, thereby increasing the solar cell's absorption capacity and short-circuit current density. The ternary solar cell achieves this through the incorporation of a third component with a narrower bandgap than the original binary material system, which enables the formation of a continuous energy band across the solar spectrum.

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Ternary all-polymer solar cells that achieve enhanced photoelectric conversion efficiency through the strategic incorporation of a strong crystalline non-fullerene small molecule acceptor into the polymer-based photovoltaic system. The ternary system combines a donor polymer with two complementary non-fullerene acceptors, where the acceptor material is specifically selected to match the absorption spectrum and energy level of the donor polymer. This dual-acceptor approach enables improved charge carrier separation, reduced recombination, and enhanced charge generation through phase separation. The ternary system demonstrates improved device performance compared to conventional binary systems, particularly at high power levels.

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Ternary system heterostructure polymer solar cells that achieve enhanced photoelectric conversion through the integration of a narrow band gap electron donor polymer with fullerene electron acceptor. The ternary system enables stable and efficient solar cells with improved light absorption beyond traditional binary heterojunctions, despite the poor miscibility of the donor polymer with fullerene materials. The ternary system can be achieved through controlled thermal processing of the donor polymer, resulting in a stable and high-efficiency solar cell architecture.

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Reverse polymer solar cells that achieve high efficiency through a novel organic material combination. The cells incorporate conjugated polymers as active layers and organic electron acceptors, enabling efficient charge separation and electron transport. The polymer active layers are fabricated using a flexible substrate, such as PET, which allows the organic materials to be deposited at room temperature. This approach enables the creation of flexible and wearable solar cells that can be integrated into various applications.

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Organic solar cells with enhanced efficiency through novel polymer-based electron acceptors. The solar cells employ a bilayer photoactive layer structure featuring a non-fullerene-based electron acceptor, which enables higher power conversion efficiency compared to conventional fullerene-based materials. The non-fullerene-based acceptor polymer, comprising a donor and acceptor functional groups, is integrated between the donor and acceptor layers, allowing the formation of a stable and efficient exciton separation interface. This architecture enables the creation of high-efficiency solar cells with improved light absorption and electron transport properties.

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Polymer photovoltaic cells using isoindigo derivatives as cathode interface modification layers achieve enhanced performance through the introduction of pyretine salt or sulfonate modification groups. These modification groups enhance water solubility of isoindigo derivatives, which are soluble in alcohol/water, while maintaining their structural integrity. The modification enables improved charge collection and separation, ohmic contacts, and overall device efficiency. The isoindigo derivatives with pyretine salt or sulfonate modification groups exhibit superior performance compared to conventional cathode interface modification materials.

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Polymer solar cells with enhanced efficiency through the introduction of a novel solvent additive. The additive enables improved short-circuit current and fill factor through its unique properties, enabling better charge transport and interface formation. The additive is particularly effective in polymer solar cells, where conventional additives like 1,8-diiodooctane (DI0) have shown significant improvements in conversion efficiency. The additive's performance is achieved without requiring additional processing steps, making it a convenient and scalable solution for improving the efficiency of polymer solar cells.

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Ternary polymer solar cells that achieve enhanced light absorption, improved charge carrier generation, and enhanced charge transport through the strategic incorporation of non-fullerene perimide acceptors into the photovoltaic active layer. The ternary system combines a donor polymer with two acceptor materials, including a polymer donor and a perimide acceptor, in a 100% active layer configuration. The perimide acceptor enhances spectral absorption, phase separation, and charge transfer efficiency, while the donor polymer maintains its inherent properties. This ternary approach enables higher short-circuit current densities and improved fill factor compared to conventional all-polymer solar cells.

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High-efficiency organic solar cell with enhanced light absorption and energy level structure control through the design of specific donor and acceptor units. The cell features a blended film of donor and acceptor materials, with a modified layer comprising fluorine-containing acceptor units, which improves light absorption while maintaining structural integrity. The cell achieves high efficiency through the precise control of the donor-acceptor energy level structure, enabling both enhanced light absorption and adjustable energy conversion.

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High-efficiency organic solar cells with enhanced open-circuit voltage (P6E) through the optimization of fluorinated electron donor and acceptor combinations. The solar cells feature a fluorinated donor layer blended with fluorinated acceptor, which enables broader absorption across the near-infrared spectrum while maintaining electron mobility. This fluorinated donor-acceptor blend system addresses the limitations of conventional fullerene-based solar cells by addressing the energy level mismatch between donor and acceptor, thereby improving fill factor and efficiency.

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A single-component high-dielectric constant photoactive layer for organic/polymer solar cells that enables efficient and flexible photovoltaic devices. The photoactive layer comprises a single-component material with a dielectric constant of 10 or higher, achieved through a novel monomer design that enables high dielectric constant properties without the need for separate sacrificial layers. This single-component material enables roll-to-roll processing of large-area devices while maintaining high photovoltaic efficiency.

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Organic thin film solar cell with improved efficiency by using a water-soluble copolymer in the cathode buffer layer. The copolymer is mixed with zinc oxide in the buffer layer solution and provides modifications that reduce barrier height, series resistance, and carrier transmission losses. The copolymer-doped zinc oxide buffer layer improves device performance by reducing contact resistance between the cathode and active layer, increasing short circuit current density, and enhancing carrier transmission efficiency.

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Polymer solar cells with enhanced performance through solvent doping, achieved by incorporating a solvent additive into the active layer mixture. The additive improves the solar cell's efficiency by modifying the active layer's electronic properties, particularly through the incorporation of fullerene derivatives like PCBM. The solvent helps to enhance the donor material's mobility and carrier generation, while maintaining the active layer's structural integrity. This approach enables the development of high-performance polymer solar cells with improved power conversion efficiency.

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Organic solar cells incorporating cyclopentadithiophene derivatives as electron acceptors achieve higher efficiency and stability compared to traditional fullerene-based materials. The solar cells feature a substrate, a cathode, a modified active layer, an anode modified layer, and an anode. The active layer combines electron donors and electron acceptors, with the cyclopentadithiophene derivatives acting as electron acceptors. This approach enables the creation of solar cells with enhanced light absorption, improved energy level structure, and reduced agglomeration between molecules.

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Organic solar cells that achieve higher power conversion efficiency through novel polymer-based architectures. The cells incorporate a polymer photovoltaic layer that enables efficient charge transport and collection while maintaining charge neutrality. This polymer layer is combined with a conventional organic semiconductor layer to create a single, integrated photovoltaic device. The polymer layer provides enhanced charge mobility and stability, while the conventional semiconductor layer contributes to charge collection. The resulting device achieves power conversion efficiencies comparable to conventional solar cells, with improved charge transport properties.

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Inversion polymer solar cells with enhanced charge transport properties achieved through a novel modification of the active layer and transport layer. The solution involves incorporating inorganic quantum dots into the active layer, replacing conventional electron transport layers with water-soluble button trioxide, and introducing gold nanoparticles to the hole transport layer. The modified structure enables improved charge transfer efficiency through optimized material combinations and surface modifications.

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Solar cells made entirely of polymers, achieving high light conversion efficiency through controlled phase separation between polymer components. The solar cells employ a polymer blend of PPDT2FBT donor and P(NDI2OD-T2) acceptor, with precise molecular weight control to optimize crystalline structure and BHJ morphology. The blend is formulated to exhibit phase separation at specific molecular weight ranges, enabling efficient charge generation and transport. The resulting solar cells exhibit improved performance compared to conventional organic solar cells, with enhanced light conversion efficiency.

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A solar cell with improved charge transport and collection efficiency through a novel cathode buffer layer. The solar cell features a laminated structure with a buffer layer comprising SAM polyvinylpyrrolidone, which enhances charge transfer and collection at the electrode interface. The buffer layer is integrated between the photoactive layer and metal electrode, enabling efficient electron and hole transport while minimizing series resistance. The laminated structure allows for precise control over the buffer layer thickness and composition, enabling optimal performance while maintaining flexibility and scalability.

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Polymer solar cells with enhanced light absorption and conversion efficiency through selective scattering of light through the active layer. The cells incorporate a refractive index-differentiated anode with ZnO doping in PEDOT:PSS, where the anode's refractive index is higher than the active layer's. This creates a selective path for light to be absorbed in the active layer, significantly increasing the utilization of incident light. The anode's refractive index difference enables total internal reflection of light at the interface, preventing it from passing through the active layer and increasing the conversion efficiency.

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Inverted structure polymer solar cells that enable large-scale production of high-efficiency solar cells through a novel manufacturing process. The cells employ a novel architecture where the active layer is deposited on the back side of the substrate, rather than the front side. This inverted structure configuration allows for the use of conventional polymer solar cell manufacturing techniques while maintaining the benefits of inverted architecture. The process involves depositing the active layer on the substrate's back side, followed by patterning and processing steps to create the desired solar cell architecture.

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Organic solar cell with enhanced long-term stability through the use of a non-corrosive polymer interfacial layer. The polymer layer, specifically a sulfonic acid group-containing polymer, prevents electrode degradation through its inherent corrosion resistance properties. This layer replaces conventional PEDOT:PSS, which etches metal oxide anodes and compromises device durability. The polymer layer is selectively heat-treated to optimize its performance characteristics, enabling stable operation over extended periods.

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A monomer and polymer for organic thin-film solar cells that enhance photoelectric conversion efficiency through a benzofuranothiophene skeleton. The polymer contains a benzofuranothiophene backbone, which enables efficient charge transport and electron-hole pair separation. The benzofuranothiophene moiety provides a high electron mobility and charge carrier stability, while the thiophene ring enhances hole mobility. The polymer's molecular structure enables efficient charge transfer and electron transport, resulting in improved solar cell performance.

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Polymer containing dioxophene benzoxerylene units with enhanced photoelectric properties through the synthesis of a novel conjugated polymer. The polymer, designated as P3, comprises a dioxophene benzoxerylene unit and a benzoxirene unit, with the benzoxirene unit being derived from a specific chemical reaction involving thiophene and benzothiophene. The polymer exhibits superior quantum efficiency and carrier mobility compared to conventional dioxophene-based materials, making it suitable for high-performance photovoltaic cells and optoelectronic devices.

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Organic solar cells with enhanced performance through hybrid cathode buffer layers. The cells feature an inverted structure with a transparent conductive cathode, organic-inorganic hybrid cathode buffer layer, photoactive layer, anode buffer layer, and metal anode. The buffer layer composition is optimized to balance electron collection and transport, enabling higher short-circuit current densities and fill factors compared to conventional organic solar cells.

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Polymer solar cells with a double electron transport layer achieve enhanced light absorption and electron transport efficiency through a novel organic/inorganic material laminate. The solar cells feature a transparent substrate, a double electron transport layer comprising an optimized organic/inorganic material laminate, and a polymer body heterogeneity Junction light absorption layer. The double electron transport layer is specifically engineered to incorporate nano-zinc oxide and PFN materials through rapid thermal treatment, enabling improved light absorption and electron transport properties.

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Dual-acceptor ternary organic solar cell with improved light absorption and charge transport for higher efficiency. The cell structure has a photoactive layer containing two electron acceptors along with the donor polymer. The dual-acceptor mix improves absorption range compared to a single acceptor. The additional acceptor also enhances phase separation and crystallinity for better charge transport. The cell is an inverted structure with layers like ITO, buffer layers, photoactive layer, anode buffer, and metal anode.

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Organic solar cell with improved efficiency using an active layer doped with an up-conversion material. The organic solar cell has an architecture with a transparent conductive substrate, electron transport layer, organic active layer, hole transport layer, and metal electrode. The active layer is made by doping the conventional P3HT:PCBM blend with KLaF4:Yb3+,Er3+ up-conversion material. The mass ratios of KLaF4:Er, P3HT, and PCBM are 0.5-1.0:15:15. The up-conversion dopant converts near-infrared light into visible light, boosting the solar cell's efficiency.

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Organic solar cell device and preparation method that achieves high efficiency through a novel interface layer design. The device incorporates a common conjugated polymer anode interface modification layer and a common conjugated polymer cathode interface modification layer, both of which are optimized to enhance charge collection and device performance. This approach simplifies the interface layer preparation process while achieving higher efficiency than traditional materials.

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Photoelectric conversion material with enhanced electron donor or acceptor properties for organic photovoltaic cells. The material is a polymer containing a condensed aromatic ring structure derived from phenylene derivatives with specific functional groups. This polymer, when synthesized through controlled polymerization of phenylene derivatives, forms a nanographene material with enhanced electron donor or acceptor properties. The nanographene material can be used as an electron donor or acceptor in organic photovoltaic cells, enabling efficient electron transfer through the photovoltaic layer.

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Organic thin-film solar cells with enhanced conversion efficiency and stability through a novel p-type semiconductor structure. The solar cells employ a polymer-based active layer containing an n-type semiconductor, which is combined with a specific quinoxaline-based p-type semiconductor. The quinoxaline p-type semiconductor exhibits a broader absorption spectrum and deeper HOMO level compared to conventional p-type semiconductors, enabling improved conversion efficiency. The quinoxaline p-type semiconductor is incorporated into a polymer matrix, which maintains flexibility and uniformity during the manufacturing process. This combination enables high-efficiency solar cells with improved stability and morphology control.

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Photoelectric conversion material containing a polymer with a condensed aromatic ring structure containing a side-chain alkoxy group, which enables efficient electron transfer in organic photovoltaic cells. The material's condensed aromatic ring structure with an alkoxy side chain enables efficient electron transfer properties, while the side-chain alkoxy group facilitates solubility in organic solvents. The material can be produced through a polymerization reaction of a phenylene derivative, followed by selective reaction to form the nanographene polymer. This material can be used as an electron donor in organic photovoltaic cells, enabling efficient electron transfer through the material's condensed aromatic ring structure.

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Organic polymer solar cells with enhanced carrier collection efficiency after exciton dissociation. The solar cells incorporate a novel organic polymer architecture that enables efficient collection of charge carriers through a novel interplay of charge recombination and carrier transport mechanisms. The architecture incorporates a novel interconnect structure that facilitates charge carrier collection through enhanced carrier recombination at the interface between the organic polymer and the metal contacts. This architecture enables the collection of charge carriers through a novel interplay of charge recombination and carrier transport mechanisms.

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Organic solar cells that achieve high power conversion efficiency through a novel polymer-based architecture. The cells incorporate a polymer with a specific molecular structure that enables efficient charge transfer and collection. The polymer's unique properties, such as its ability to facilitate hole transport and electron injection simultaneously, enable the generation of high-quality charge carriers while minimizing recombination losses. This architecture enables the direct conversion of solar energy into electrical energy without the need for additional processing steps.

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