Numerical simulation and fabrication of Pb-free perovskite solar cells (FTO/TiO2/Cs3Bi2I9/spiro-MeOTAD/Au)

被引：37

作者：

Ahmad, Khursheed ^{[1
]}

Khan, Mohd Quasim ^{[2
]}

Khan, Rais Ahmad ^{[3
]}

Kim, Haekyoung ^{[1
]}

机构：

[1] Yeungnam Univ, Sch Mat Sci & Engn, Gyongsan 38541, South Korea

[2] MJP Rohilkhand Univ, Dept Chem, MMDC Moradabad, Bareilly 244001, Uttar Pradesh, India

[3] King Saud Univ, Coll Sci, Dept Chem, Riyadh 11451, Saudi Arabia

来源：

OPTICAL MATERIALS | 2022年 / 128卷

基金：

新加坡国家研究基金会;

关键词：

Pb-free perovskite-like materials; Light absorber; Simulation; SCAPS-1D; Perovskite solar cells; OPEN-CIRCUIT VOLTAGE; LEAD-FREE; HALIDE PEROVSKITES; EFFICIENT; SEMICONDUCTOR; LIGHT;

D O I：

10.1016/j.optmat.2022.112458

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Recently, lead (Pb)-free perovskite solar cells (PSCs) have received enormous attention and various Pb-free perovskite and perovskite-like materials have been employed as light absorber for photovoltaic applications. Cesium bismuth iodide (Cs3Bi2I9) is stable and less toxic perovskite-like material. Herein, we have simulated Cs3Bi2I9 based Pb-free PSCs with device architecture of FTO/TiO2/Cs3Bi2I9/spiro-MeOTAD/Au using SCAPS-1D software. The influence of thickness of electron transport layer (ETL), hole transport material (HTM) and light absorber layer (Cs3Bi2I9) were investigated. The best simulated Pb-free PSCs exhibited the highest power conversion efficiency of 11.54%. Further, we have prepared thin films of Cs3Bi2I9 and physiochemical properties were examined by X-ray diffraction (XRD) and optical band gap was determined by employing ultraviolet-visible (UV-vis) absorption spectroscopy. We have also fabricated Pb-free PSCs with device structure of FTO/TiO2/Cs3Bi2I9/spiro-MeOTAD/Au. The fabricated Pb-free PSCs device exhibited good open circuit voltage (Voc) of 780 mV with PCE of 1.66%.

引用

页数：7

共 40 条

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