Enhanced charge collection with passivation of the tin oxide layer in planar perovskite solar cells
- Title
- Enhanced charge collection with passivation of the tin oxide layer in planar perovskite solar cells
- Author
- 박진성
- Keywords
- ELECTRON-TRANSPORTING LAYER; HIGH-EFFICIENCY; SNO2; HETEROJUNCTION; TEMPERATURE; PERFORMANCE; DEPOSITION; EXTRACTION; FILMS
- Issue Date
- 2017-06
- Publisher
- ROYAL SOC CHEMISTRY
- Citation
- JOURNAL OF MATERIALS CHEMISTRY A, v. 5, no. 25, page. 12729-12734
- Abstract
- Tin oxide is an excellent candidate to replace mesoporous TiO2 electron transport layers (ETLs) in perovskite solar cells. Here, we introduced a SnO2 layer by a low-temperature solution process, and investigated its morphology, opto-physical and electrical properties affecting the device performance. We reveal that low-temperature processed SnO2 is self-passivating in nature, which leads to a high efficiency. To further enhance the blocking effect, we combined a compact TiO2 underlayer with the SnO2 contact layer, and found that the bi-layered ETL is superior compared to single layers. The best device shows photovoltaic values in a planar structure with a short-circuit current density (J(sc)) of 22.58 mA cm(-2), an open-circuit voltage (V-oc) of 1.13 V, a fill factor (FF) of 0.78, and a power conversion efficiency (PCE) of 19.80% under 1 sunlight illumination.
- URI
- https://pubs.rsc.org/en/content/articlelanding/2017/TA/C7TA04128D#!divAbstracthttps://repository.hanyang.ac.kr/handle/20.500.11754/114511
- ISSN
- 2050-7488; 2050-7496
- DOI
- 10.1039/c7ta04128d
- Appears in Collections:
- COLLEGE OF ENGINEERING[S](공과대학) > MATERIALS SCIENCE AND ENGINEERING(신소재공학부) > Articles
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