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Dual-channel anchorable organic dye with triphenylamine-based core bridge unit for dye-sensitized solar cells
- Authors
- Seo, Kang Deuk; You, Ban Seok; Choi, In Tack; Ju, Myung Jong; You, Mi; Kang, Hong Seok; Kim, Hwan Kyu
- Issue Date
- 12월-2013
- Publisher
- ELSEVIER SCI LTD
- Keywords
- Dye-sensitized solar cell; Dual-channel; Core bridge donor; Triphenylamine; Dye aggregation; Coadsorbent
- Citation
- DYES AND PIGMENTS, v.99, no.3, pp.599 - 606
- Indexed
- SCIE
SCOPUS
- Journal Title
- DYES AND PIGMENTS
- Volume
- 99
- Number
- 3
- Start Page
- 599
- End Page
- 606
- ISSN
- 0143-7208
- Abstract
- Dual-channel (DC) anchorable organic dye based on an acceptor-pi-donor-core bridge donor-donor-pi-acceptor structural motif, was synthesized and used as sensitizer for dye sensitized solar cells (DSSCs). DC dye linked the two donors using a core bridge donor such as triphenylamine unit, which makes two channels maintaining a particular distance (>4 angstrom). The inter-planar DC5 exhibited dye aggregation and charge recombination due to strongly intermolecular pi-pi stacking between the channels of DC dyes adsorbed on the TiO2 surface. As a result, a solar cell based on DC5 with a hole conductor coadsorbent of HC-A1 showed better photovoltaic performance with a J(sc) of 8.90 mA cm(-2), a V-oc of 0.70 V, and an FF of 0.77, corresponding to an overall conversion efficiency (eta) of 4.80%. Published by Elsevier Ltd.
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Collections - Graduate School > Department of Advanced Materials Chemistry > 1. Journal Articles
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