Inorganic and lead-free CsBi3I10 thin-film solar cell prepared by single-source thermal evaporation

In this work, we report the reproducible preparation method of highly uniform large-area perovskite CH3NH3PbI3 thin films by scalable single-source thermal evaporation with the area of 100 cm2. The microstructural and optical properties of large-area CH3NH3PbI3 thin films were investigated. The dense, uniform, smooth, high crystallinity of large-area perovskite thin film was obtained. The element ratio of Pb/I was close to the ideal stoichiometric ratio of CH3NH3PbI3 thin film. These films show a favorable bandgap of 1.58 eV, long and balanced carrier-diffusion lengths. The CH3NH3PbI3 thin film perovskite solar cell shows a stable efficiency of 7.73% with almost no hysteresis, indicating a single-source thermal evaporation that is suitable for a large area perovskite solar cell.

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Molten Lead-Free Solder Deposited by Inkjet Printing for Bonding of Thin-Film Solar Cell Modules

MATERIALS TRANSACTIONS ◽

10.2320/matertrans.md201501 ◽

2016 ◽

Vol 57 (6) ◽

pp. 797-804

Author(s):

Chien-Hsun Wang ◽

Weng-Sing Hwang ◽

Wen-Ming Chen ◽

Ho-Lin Tsai ◽

Cheng-Han Wu

Keyword(s):

Thin Film ◽

Solar Cell ◽

Inkjet Printing ◽

Thin Film Solar Cell ◽

Lead Free ◽

Lead Free Solder ◽

Cell Modules ◽

Molten Lead ◽

Free Solder

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Inorganic and Lead-free CsBi3I10 Thin Film Solar cell Prepared by Single-source Thermal Evaporation

10.21203/rs.3.rs-201822/v1 ◽

2021 ◽

Author(s):

Huabin Lan ◽

Xingye Chen ◽

Ping Fan ◽

Guangxing Liang

Keyword(s):

Thin Film ◽

Thin Films ◽

Solar Cells ◽

Band Gap ◽

Thermal Evaporation ◽

Perovskite Solar Cells ◽

Lead Free ◽

Single Source ◽

Thermal Evaporation Method ◽

Inorganic Lead

Abstract All inorganic lead-free halide perovskites have attracted much attention due to their non-toxic and good band gap. In this paper, we first prepared all inorganic lead-free perovskite CsBi3I10 thin films by single source thermal evaporation deposition. The results show that CsBi3I10 thin films prepared by single source thermal evaporation have layered structure, high purity hexagonal phase and high crystallinity, which are consistent with the theoretical calculation results. The surface of the thin film was compact and uniform, and had high homology with the crystal structure of the evaporation source material. After annealing, the crystallinity of the film was further improved. The band gap of the CsBi3I10 thin film calculated was 1.83 eV, Perovskite solar cells based on CsBi3I10 thin films exhibit an efficiency of up to 0.84%. These results indicate that the proposed single source thermal evaporation method has the potential to prepare high efficiency inorganic lead-free perovskite solar cells.

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