Modified Transport Layers in Perovskite Solar Cells

Inverted perovskite solar cells with enhanced hole transport properties achieved through the use of iron-doped nickel oxide as a hole transport layer. The iron-doped nickel oxide layer is prepared through magnetron sputtering of a nickel oxide target with iron doping, ensuring superior conductivity and transparency compared to conventional nickel oxide. This iron-doped nickel oxide layer replaces the traditional hole transport layer in inverted perovskite solar cells, significantly improving device performance by enhancing hole collection efficiency.

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A method to enhance perovskite solar cells by preventing halogen migration through a novel interface layer. The layer, comprising a conductive polymer containing a high-doped halogen, replaces the conventional passivation layer in the perovskite absorption layer. This polymer layer prevents halogen migration while maintaining electrical conductivity. The polymer layer can be formed through evaporation or chemical vapor deposition, and its high-doped halogen content ensures effective passivation of the perovskite while maintaining its electrical properties.

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Perovskite solar cells with enhanced hole transport layer performance through a novel hole transport layer structure. The cell architecture comprises a substrate with a textured surface, a composite hole transport layer with a protective layer and a magnetron-sputtered hole layer, and a perovskite layer. The hole transport layer has a transition region where the protective layer and the hole layer are joined, with the hole layer comprising a nickel oxide-based material and the protective layer comprising a metal oxide. This transition region enables improved hole transport properties while maintaining structural integrity.

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A perovskite solar cell with enhanced performance through the use of a double hole transport layer. The cell employs a transparent conductive substrate as the base layer, followed by a PCBM (polystyrene butadiene copolymer) electron transport layer, and finally a double hole transport layer that bridges the perovskite light-absorbing layer and the electron transport layer. This design eliminates the conventional PEDOT:PSS hole transport layer, which typically has a HOMO energy level of -5.0 eV, by introducing a material with an energy level between the perovskite light-absorbing layer and the electron transport layer.

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Perovskite solar cells with enhanced photoelectric conversion efficiency through the use of a modified electron transport layer. The layer is prepared by depositing reduced graphene oxide (rGO) on the perovskite absorber surface, followed by deposition of a perovskite absorber layer on the rGO surface. The rGO layer is then replaced with a perovskite absorber layer, while maintaining the hole transport layer. This approach enables improved charge carrier mobility and reduced carrier loss in perovskite solar cells.

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Preparing a perovskite solar cell that has high photoelectric conversion efficiency. The perovskite solar cell includes an alkali metal thiocyanate modified electron transport layer, which comprises a conductive substrate, an electron transport layer, an alkali metal thiocyanate modified layer, a perovskite light absorption layer, a hole transport layer and an electrode which are sequentially stacked.

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A method for improving the stability and efficiency of perovskite solar cells through interface modification. The method involves applying a thin layer of a polymer-based interface material (such as Parylene N, C, or F) between the perovskite layer and the substrate. This layer acts as a protective barrier against environmental degradation, including moisture and oxygen, while also facilitating charge transport. The polymer-based interface material enhances the perovskite's interface properties, particularly its stability and resistance to degradation under environmental conditions.

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Modifying the common electron transport layer to improve the performance and stability of the device. The modification includes carrying out a first treatment on the surface of the A is at least one selected from organic cations and inorganic cations, b is selected from divalent metal ions, x is selected from halogen ions.

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A perovskite solar cell with a double-layer trifluoroacetate modification layer that enhances stability and efficiency through a novel interface modification process. The modification layer, comprising trifluoroacetate methylsulfide, is applied to both the electron transport layer and perovskite layer, creating a dual-layer interface that prevents defects and promotes efficient charge transfer. This approach enables the creation of perovskite solar cells with improved power conversion efficiency and stability compared to conventional single-layer modifications.

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A perovskite solar cell with enhanced efficiency and stability through a novel interface modification approach. The cell comprises a perovskite light-absorbing layer, a hole transport layer, an electron transport layer, and a metal electrode. A thermally activated delayed fluorescence polymer material is applied between the perovskite and hole transport layers, specifically between the perovskite and electron transport layers. This polymer modification layer enables efficient energy transfer between the perovskite and QW, thereby reducing radiative recombination losses and increasing the perovskite solar cell efficiency.

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A perovskite solar cell with enhanced efficiency and stability through a novel modification layer. The cell comprises a conductive glass substrate, electron transport layer, perovskite active layer, hole transport layer, metal counter electrode, and a two-dimensional double-metal perovskite compound modification layer containing diamine ions. The modification layer is positioned between the perovskite active layer and the electron transport layer, and between the perovskite active layer and the hole transport layer. This layer suppresses non-radiative recombination at the interface while enhancing carrier transport through its inorganic framework. The modification layer also exhibits excellent photothermal stability due to its hydrogen-bonded interaction with the organic cation layer.

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Electron transport layer additive to improve the photoelectric conversion efficiency and stability of the perovskite solar cell. The additive comprises an 18-crown-6 and an alkali metal salt.

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Interface modification for perovskite solar cells to enhance stability and performance. The modification involves treating the perovskite layer with a hydrophobic polymer coating, followed by a buffer layer of a hydrophilic polymer. This approach addresses the hydrophobicity issues associated with traditional PEDOT:PSS hole transport materials in perovskite solar cells by creating a hydrophobic interface between the perovskite and the substrate.

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Ammonium fluoride-modified tin dioxide electron transport layer for perovskite solar cells, which improves charge extraction efficiency and reduces interface defects through the incorporation of ammonium fluoride. The modified tin dioxide layer enhances electron transport properties while maintaining chemical stability at low temperatures, enabling high-performance perovskite solar cells with improved efficiency and stability.

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Organic electron transport layer for perovskite solar cells that improves charge carrier mobility and reduces interface defects. The novel transport layer is prepared through a spin-coating process that enables continuous chlorobenzene deposition at elevated temperatures, eliminating the need for solvent-based processing. The layer's composition and concentration are optimized to balance charge carrier mobility and interface stability, resulting in enhanced photoelectric conversion efficiency compared to conventional PCBM-based electron transport layers.

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High-voltage perovskite solar cells with enhanced open-circuit voltage through the use of ultra-thin hole transport layers. The solution dynamic spin coating method enables precise control over PTAA film thickness and quality, while the surface treatment with ultraviolet ozone improves film uniformity and hydrophilicity. This approach enables the fabrication of transparent perovskite solar cells with open-circuit voltages above 1.1 V, surpassing conventional devices.

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Perovskite solar cell with a hole transport layer that incorporates 1,4-diiodotetrafluorobenzene (DTB) doped spiro-OMeTAD, enabling high efficiency perovskite solar cells with improved carrier transport properties. The DTB-doped spiro-OMeTAD hole transport layer replaces traditional dopants like lithium tetrakis(4,4'-bipyridine) bis(trifluoromethanesulfonimide) (LiTFSI) and 4-tert-butylpyridine (TBP), which previously compromised perovskite stability. The DTB-doped spiro-OMeTAD layer enhances hole transport while maintaining the spiro-OMeTAD's charge transport capability, resulting in improved solar cell efficiency.

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A perovskite solar cell with enhanced performance through a novel doping approach. The cell employs a tributyl phosphate-doped nickel oxide layer as the hole transport layer, which significantly improves surface roughness and electrical conductivity. A thin lithium fluoride layer is deposited between the hole transport layer and perovskite layer, creating a uniform interface with mirror-like properties. This dual-layer architecture addresses the issues of surface defects and interface recombination in nickel oxide-based perovskite solar cells. The cell achieves improved carrier transport and reduced interface defects, resulting in enhanced photovoltaic performance.

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A trans-structured perovskite solar cell with a double-layer hole transport layer and preparation method, which improves the transport ability and stability of the hole transport layer by incorporating a titanium dioxide (TiO2) interlayer. The cell structure comprises a transparent conductive glass substrate with a titanium dioxide interlayer, followed by a perovskite solar cell with a double-layer hole transport layer. The TiO2 interlayer enhances the hole transport properties of the hole transport layer while maintaining the perovskite's perovskite properties.

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A perovskite solar cell with enhanced stability through a novel perovskite light-absorbing layer modification. The modification layer is a halogenated fused heterocyclic iron salt compound, specifically designed to address the thermal degradation issues associated with conventional perovskite solar cells. The modification layer is deposited between the perovskite light-absorbing layer and the top electrode layer, creating a barrier against thermal degradation while maintaining the perovskite's light-absorbing properties. This approach enables high-efficiency perovskite solar cells with improved thermal stability compared to conventional methods.

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