Efficient Metal Halide Perovskite Solar Cells Prepared by Reproducible Electrospray Coating on Vertically Aligned TiO2 Nanorod Electrodes
- Authors
- Heo, Jin Hyuck; Im, Kyungmin; Kim, Jinsoo; Im, Sang Hyuk
- Issue Date
- 8-1월-2020
- Publisher
- AMER CHEMICAL SOC
- Keywords
- ZnO nanorods; TiO2 nanorods; metal halide perovskite; electrospray; hysteresis
- Citation
- ACS APPLIED MATERIALS & INTERFACES, v.12, no.1, pp.886 - 892
- Indexed
- SCIE
SCOPUS
- Journal Title
- ACS APPLIED MATERIALS & INTERFACES
- Volume
- 12
- Number
- 1
- Start Page
- 886
- End Page
- 892
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/58330
- DOI
- 10.1021/acsami.9b19121
- ISSN
- 1944-8244
- Abstract
- Vertically aligned TiO2 nanorod (NR) electrodes with straight macropores enabled a metal halide perovskite (MHP) solution to be fully infiltrated within their structure and, as a result, formed void-free dense MHP films reproducibly during an electrospray-coating process, whereas conventional mesoporous TiO2 (m-TiO2) electrodes with three-dimensionally interconnected mesopores formed internal voids by imperfect infiltration of MHP solution. Hence, TiO2 NR-based MHP solar cells could be more reproducibly fabricated by an electrospray-coating process and exhibited smaller current density-voltage hysteresis with respect to the scan direction and scan rate than the m-TiO2-based MHP solar cells due to the short and straight electron pathway either by a one-dimensional TiO2 NR electrode or a densely formed MHP layer within the TiO2 NR electrode.
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Collections - College of Engineering > Department of Chemical and Biological Engineering > 1. Journal Articles
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