Oxidized Nickel to Prepare an Inorganic Hole Transport Layer for High-Efficiency and Stability of CH 3 NH 3 PbI 3 Perovskite Solar Cells

Chien-Chung Hsu, Sheng-Min Yu, Kun-Mu Lee, Chuan-Jung Lin, Bo-Yi Liou and Fu-Rong Chen
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Chien-Chung Hsu: Department of Engineering and System Science, National Tsing Hua University, Hsinchu 30013, Taiwan
Sheng-Min Yu: Department of Engineering and System Science, National Tsing Hua University, Hsinchu 30013, Taiwan
Kun-Mu Lee: Department of Chemical and Materials Engineering, Chang Gung University, Taoyuan 33302, Taiwan
Chuan-Jung Lin: Department of Engineering and System Science, National Tsing Hua University, Hsinchu 30013, Taiwan
Bo-Yi Liou: Department of Chemical and Materials Engineering, National Central University, Jhong-Li, Taoyuan 32001, Taiwan
Fu-Rong Chen: Department of Engineering and System Science, National Tsing Hua University, Hsinchu 30013, Taiwan

Energies, 2022, vol. 15, issue 3, 1-12

Abstract: In this study, we report a perovskite solar cell (PSC) can be benefited from the high quality of inorganic nickel oxide (NiO x ) as a hole transport layer (HTL) film fabricated from the physical vapor deposition (PVD) process. The power conversion efficiency (PCE) of PSC is found to depend on the thickness of NiO x HTL. The NiO x thickness is optimized via quantitative investigation of the structure, optical and electrical properties. With an active area of 11.25 cm 2 , a PSC module (25 cm 2 ) with a PCE of 15.1% is demonstrated, while statistically averaged PCE = 18.30% with an open voltage (V oc ) 1.05 V, short-circuit current density (J sc ) 23.89 mA/cm 2 , and fill factor (FF) 72.87% can be achieved from 36 devices with smaller active areas of 0.16 cm 2 . After the stability test at 40% relative humidity (RH) and 25 °C for 1200 h, the highest performance NiO x -based PSC is shown to be about 1.2–1.8 times superior to PEDOT:PSS organic HTL based PSC at the same environment.

Keywords: hole transport layer; perovskite; stability; reliability; power conversion efficiency (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2022
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