Thermally Stable Inorganic CsPbI2Br Mesoscopic Metal Halide Perovskite Solar Submodules
- Authors
- Heo, Jin Hyuck; Kim, Do Hun; Park, Jin Kyoung; Choi, Yong Kyu; Lee, David S.; Im, Sang Hyuk
- Issue Date
- 20-11월-2019
- Publisher
- AMER CHEMICAL SOC
- Keywords
- inorganic perovskite; solar cells; submodules; stability; spin-washing
- Citation
- ACS APPLIED MATERIALS & INTERFACES, v.11, no.46, pp.43066 - 43074
- Indexed
- SCIE
SCOPUS
- Journal Title
- ACS APPLIED MATERIALS & INTERFACES
- Volume
- 11
- Number
- 46
- Start Page
- 43066
- End Page
- 43074
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/61562
- DOI
- 10.1021/acsami.9b12179
- ISSN
- 1944-8244
- Abstract
- Highly efficient and thermally stable inorganic CsPbI2Br mesoscopic metal halide perovskite (MHP) solar cells with a poly-3-hexylthiophene (P3HT) hole transporting layer (HTL) are demonstrated by spin-washing of the P3HT HTL since the light harvesting efficiency is improved by minimizing the coabsorption of light by P3HT, and the open-circuit voltage is enhanced because of the increased valence band maximum position of the spin-washed P3HT HTL. The spin-washed CsPbI2Br MHP solar cell exhibited 1.24 V open-circuit voltage (V-oc), 14.20 mA/cm(2) short-circuit current density (J(sc)), 81.52% fill factor (FF), and 14.35% power conversion efficiency (PCE). The unencapsulated spin-washed CsPbI2Br MHP solar cell went through 7.56% degradation after a 1000 h thermal stability test under 100 degrees C/25% relative humidity (RH) and simultaneous 1 sun light soaking conditions. In addition, the unencapsulated spin-washed CsPbI2Br MHP solar submodule with 25 cm(2) of masked active area showed a 98% geometrical FF, 115.09 mA short-circuit current, 3.54 V V-oc, 71.09% FF, and 11.58% PCE while exhibiting 8.80% of degradation during a thermal stability test at 100 degrees C/25% RH and 1 sun light soaking for 1000 h.
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Collections - College of Engineering > Department of Chemical and Biological Engineering > 1. Journal Articles
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