Facile synthesis of carbon dot-Au nanoraspberries and their application as high-performance counter electrodes in quantum dot-sensitized solar cells
SCIE
SCOPUS
- Title
- Facile synthesis of carbon dot-Au nanoraspberries and their application as high-performance counter electrodes in quantum dot-sensitized solar cells
- Authors
- Van-Duong Dao; Kim, Poeun; Baek, Seunghyeon; Larina, Liudmila L.; YONG, KIJUNG; Ryoo, Ryong; Ko, Seung Hyeon; Choi, Ho-Suk
- Date Issued
- 2016-01
- Publisher
- PERGAMON-ELSEVIER SCIENCE LTD
- Abstract
- Carbon dot-Au nanoraspberries (Cdot-Au NRs) were synthesized by a simple one-pot process using Cdots as initiators to direct the dendritic growth of Au via room temperature chemical reduction of HAuCl4 by formic acid. We evaluated the resulting Cdot-Au NR as a counter electrode material for ZnO nanowire/CdS/CdSe quantum dot-sensitized solar cells (QDSCs). The counter electrode employing Cdot-Au NRs exhibited higher electrocatalytic activity, lower charger-transfer resistance, and larger exchange current density than commonly used Au-sputtered counter electrodes. The power conversion efficiency of the cell was improved to 5.4%, in comparison to efficiencies of 3.6% and 0.18% shown by cells employing Au-sputtered and Cdot counter electrodes, respectively. These features render Cdot-Au NRs as highly promising counter electrode materials for QDSCs. (C) 2015 Elsevier Ltd. All rights reserved.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/35656
- DOI
- 10.1016/J.CARBON.2015.09.023
- ISSN
- 0008-6223
- Article Type
- Article
- Citation
- CARBON, vol. 96, page. 139 - 144, 2016-01
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- There are no files associated with this item.
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