期刊
NANO ENERGY
卷 64, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.nanoen.2019.103964
关键词
Perovskite solar cells; MAPbI(3-x)Cl(x)-Cu:NiO-Carbon-graphite composites; Ambient-air- and antisolvent-free-processed; Hysteresis-free; Stability
类别
资金
- National Research Foundation of Korea [2019R1H1A2080202]
- Ministry of Science and ICT
- National Research Foundation of Korea [2019R1H1A2080202] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
For commercialization of perovskite solar cells (PSCs), the device stability issues attributed to degradation of perovskite material, photo and thermal instability, and photocurrent density-voltage (J-V) hysteresis behavior should be solved. Furthermore, most of presented high efficiency PSCs utilize an antisolvent-strategy to assist perovskite crystal growth with large grain-size and excellent coverage. To solve such issues, we developed fullyambient-air and antisolvent-free processes for the fabrication of PSCs with perovskite-based composites (i.e., MAPbI(3-x)Cl(x)-Cu:NiO, MAPbI(3-x)Cl(x)-Cu:NiO-carbon-graphite and MAPbI(3-x)Cl(x)-Al2O3). Such perovskite composites based cells with interface engineering yielded high power-conversion-efficiency (PCE) of 18.6% and fill factor (FF) of 78.3% with excellent reproducibility. More importantly, the target cells showed hysteresis-free behavior and dramatic enhancement in air-, photo- and thermal-stability. Compared to the pristine cells, the target device showed remarkable long-term stability with retaining almost 100% of the initial values of V-oc and J(sc) and similar to 94% of FF and PCE over 280 days.
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