Buffer and anode-integrated WO3-doped In2O3 electrodes for PEDOT:PSS-free organic photovoltaics
- Authors
- Kim, Jun Ho; Kang, Sin-Bi; Lee, Ju-Hyun; Shin, Yong-Hee; Shin, Hyun-Su; Kwon, Dae-Gyeon; Seong, Tae-Yeon; Park, Yongsup; Na, Seok-In; Kim, Han-Ki
- Issue Date
- 5월-2013
- Publisher
- ELSEVIER SCIENCE BV
- Keywords
- PEDOT:PSS free; WO3-doped In2O3 (IWO); Organic solar cells; Transparent electrodes
- Citation
- ORGANIC ELECTRONICS, v.14, no.5, pp.1305 - 1312
- Indexed
- SCIE
SCOPUS
- Journal Title
- ORGANIC ELECTRONICS
- Volume
- 14
- Number
- 5
- Start Page
- 1305
- End Page
- 1312
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/103460
- DOI
- 10.1016/j.orgel.2013.02.025
- ISSN
- 1566-1199
- Abstract
- We developed PEDOT:PSS-free organic solar cells (OSCs) using WO3 and In2O3 (IWO) mixed electrodes acting as a buffer hole injection layer (HIL) and anode simultaneously. Through the co-sputtering and rapid thermal annealing (RTA) of WO3 and In2O3, we achieved buffer and anode-integrated transparent electrodes with a sheet resistance of 17 Ohm/square, a transmittance of 90.32%, and a work function of 4.83 eV, all of which are comparable to values obtained with a conventional ITO anode. Due to the existence of WO3 in the In2O3 matrix, OSCs fabricated on an IWO electrode with no acidic PEDOT:PSS buffer layer showed a PCE of 2.87%. Therefore, a transparent IWO electrode simultaneously acting as an HIL and anode layer can be considered a promising transparent electrode for cost-efficient and reliable OSCs because it could eliminate the use of acidic PEDOT: PSS buffer layer. (C) 2013 Elsevier B. V. All rights reserved.
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Collections - College of Engineering > Department of Materials Science and Engineering > 1. Journal Articles
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