#6647. Optimizing Vertical Crystallization for Efficient Perovskite Solar Cells by Buried Composite Layers

November 2026publication date
Proposal available till 30-05-2025
4 total number of authors per manuscript0 $

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Journal’s subject area:
Electrical and Electronic Engineering;
Energy Engineering and Power Technology;
Atomic and Molecular Physics, and Optics;
Electronic, Optical and Magnetic Materials;
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Abstract:
Planar-heterojunction perovskite solar cells (PSCs) have experienced rapid evolution in recent years because of the low-temperature processing, suitable alignment, and high mobility of the tin oxide buried contact layer. However, improper SnO2 surface states and poor crystallinity of the top perovskite films are still the main obstacles for the planar PSCs in which performance always lags behind their mesoporous counterparts. Herein, a new buried contact is reported by introducing graphitic carbon nitride (g-C3N4) into the commonly used SnO2 which performs outstanding transmittance, conductivity, and surface states for a high-quality electron-transporting layer. Moreover, the vertical composition and crystallinity of the top perovskite film are manipulated by rich amino groups on the edge of the g-C3N4 nanosheets which induce the prenucleation of the lead-rich species at the buried interface.
Keywords:
graphitic carbon nitride nanosheets; high-quality buried composite layers; planar-heterojunction perovskite solar cells; vertical crystallization manipulation

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