期刊
JOURNAL OF POWER SOURCES
卷 230, 期 -, 页码 207-217出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jpowsour.2012.12.066
关键词
Dye-sensitised solar cell; Counter electrode; Graphene; Tungsten; Dispersibility
资金
- National Research Foundation of Korea (NRF)
- Ministry of Education, Science and Technology [2012-008150]
- Future Leading Project through the Small and Medium Business Administration [S2044441]
The article reports a nanocomposite (graphene and tungsten (GN-W)) successfully used as an alternative to a conventional Pt counter electrode in dye-sensitised solar cells (DSSCs). The dispersibility of the GN structure in ethanol was enhanced by acid oxidation and planetary ball milling. Raw, purified and purified and ground GN structures were spin coated onto fluorine-doped tin oxide (FTO) glass substrates and examined as catalytic films on the counter electrodes of DSSCs. Purified and ground GNs exhibited the best photovoltaic performance (4.55%) among these structures. The grinding method was found effective for upgrading the dispersibility of GNs in a base fluid and the photovoltaic efficiency results. Based on the photovoltaic efficiency results of the DSSCs with different GN structures, the purified and ground GN structure was selected and incorporated with tungsten. A composite film of GN W was used as a catalytic film on the counter electrode of a DSSC. The DSSC fabricated with the GN W composite counter electrode achieved a photovoltaic efficiency of 5.88%. This performance is comparable to that of a DSSC with a standard Pt counter electrode (5.92%). (C) 2012 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据