Journal
ADVANCED ENERGY MATERIALS
Volume 10, Issue 27, Pages -Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/aenm.202000967
Keywords
fill factors; long-term air stability; perovskite solar cells; perovskite-Cu; NiO composites; thermal- and photostability
Categories
Funding
- National Research Foundation (NRF) of Korea - Korea government (MSIT) [2019R1H1A2080202]
- National Research Foundation of Korea [2019R1H1A2080202] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
Ask authors/readers for more resources
To solve critical issues related to device stability and performance of perovskite solar cells (PSCs), FA(0.026)MA(0.974)PbI(3-)(y)Cl(y)-Cu:NiO (formamidinium methylammonium (FAMA)-perovskite-Cu:NiO) and Al2O3/Cu:NiO composites are developed and utilized for fabrication of highly stable and efficient PSCs through fully-ambient-air processes. The FAMA-perovskite-Cu:NiO composite crystals prepared without using any antisolvents not only improve the perovskite film quality with large-size crystals and less grain boundaries but also tailor optical and electronic properties and suppress charge recombination with reduction of trap density. A champion device based on the composites as light absorber and Al2O3/Cu:NiO interfacial layer between electron transport layer and active layer yields power conversion efficiency (PCE) of 20.67% with V-OC of 1.047 V, J(SC) of 24.51 mA cm(-2), and fill factor of 80.54%. More importantly, such composite-based PSCs without encapsulation show significant enhancement in long-term air-stability, thermal- and photostability with retaining 97% of PCE over 240 d under ambient conditions (25-30 degrees C, 45-55% humidity).
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available