High-Quality Perovskite CH₃NH₃PbI₃ Thin Films for Solar Cells Prepared by Single-Source Thermal Evaporation Combined with Solvent Treatment

In this work, solvent annealing process for CH₃NH₃PbI₃ thin film prepared by single source evaporation was reported. Characterized by the scanning electron microscope (SEM), X-ray diffractometer (XRD), energy dispersive spectroscope (EDS), ultraviolet-visible (UV) spectrophotometer, and the photolum...

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Published inMaterials Vol. 12; no. 8; p. 1237
Main Authors Peng, Huanxin, Su, Zhenghua, Zheng, Zhuanghao, Lan, Huabin, Luo, Jingting, Fan, Ping, Liang, Guangxing
Format Journal Article
LanguageEnglish
Published Switzerland MDPI AG 15.04.2019
MDPI
Subjects
Annealing
Energy conversion efficiency
Ethanol
Evaporation
Glass substrates
Grain structure
Morphology
perovskite
Perovskites
Photoluminescence
Photovoltaic cells
Solar cells
solvent annealing
Solvents
thin film
Thin films
United States > US
China
thin film
perovskite
evaporation
solvent annealing
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Summary:In this work, solvent annealing process for CH₃NH₃PbI₃ thin film prepared by single source evaporation was reported. Characterized by the scanning electron microscope (SEM), X-ray diffractometer (XRD), energy dispersive spectroscope (EDS), ultraviolet-visible (UV) spectrophotometer, and the photoluminescence (PL) spectrometer, our method ensured higher quality film with crystallinity, composition, well-defined grain structure, and reproducibility. The optimized solar cell device based on the structure of ITO/PEDOT:PSS/CH₃NH₃PbI₃/PCBM/Ag achieved better performance in power conversion efficiency from 2.64% to 9.92%, providing an effective method to optimize the quality of perovskite film for solar cell application.
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These authors contributed equally to this work.
ISSN:1996-1944
1996-1944
DOI:10.3390/ma12081237