首页|Optimization of Ag/PCBM interface via solvent treatment for efficient perovskite solar cell

Optimization of Ag/PCBM interface via solvent treatment for efficient perovskite solar cell

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  • NSTL
  • Elsevier
? 2022The energy gap between 6,6-phenyl-C61-butyric acid methyl ester (PCBM) and silver (Ag) is disadvantage to the electron collection of perovskite solar cells (PSCs). In this work, solvent treatment is applied on the surface of PCBM by using ethanol, acetonitrile and ethanol:5 vol% acetonitrile, respectively. Experimental results showed that solvent treatment greatly enhanced the power conversion efficiency (PCE) of PSCs. After ethanol:5 vol% acetonitrile treatment, the PCE of PSC increased from 14.03 ± 0.23 % to 17.03 ± 0.13 % due to the simultaneously enhancement of VOC, JSC and FF. Electronic energy level at the surface of PCBM, electron mobility of PCBM film and the dark current density of PSCs were analysed to investigate the work mechanism of solvent treatment.

Perovskite solar cellPolar solventSolvent treatment

Niu Q.、Zhang L.、Xu Y.、Hua W.、Huang W.、Lv H.、Zeng W.、Xia R.、Min Y.、Huang J.

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State Key Laboratory of Organic Electronics and Information Displays & Institute of Advanced Materials (IAM) Nanjing University of Posts & Telecommunications

The School of Materials and Energy Guangdong University of Technology

Oxford Suzhou Centre for Advanced Research (OSCAR) University of Oxford

2022

10.1016/j.synthmet.2022.117144

Synthetic Metals

Synthetic Metals

EISCI
ISSN：0379-6779
年,卷(期)：2022.290
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