D-pi-A organic dyes with various bulky amine-typed donor moieties for dye-sensitized solar cells employing the cobalt electrolyte
- Authors
- Seo, Kang Deuk; Choi, In Tack; Kim, Hwan Kyu
- Issue Date
- 10월-2015
- Publisher
- ELSEVIER
- Keywords
- Triphenylamine; Bis-dimethylfluorenylamine; Bis-phenothiazinylamine; Organic dye; Dye-sensitized solar cell
- Citation
- ORGANIC ELECTRONICS, v.25, pp.1 - 5
- Indexed
- SCIE
SCOPUS
- Journal Title
- ORGANIC ELECTRONICS
- Volume
- 25
- Start Page
- 1
- End Page
- 5
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/92255
- DOI
- 10.1016/j.orgel.2015.06.011
- ISSN
- 1566-1199
- Abstract
- SGT dyes containing various amine-typed donors as triphenylamine, bis-fluorenylamine and bis-phenothiazinylamine as the electron donor and a cyanoacrylic acid moiety as electron acceptor in D-pi-A system, were developed to use in dye-sensitized solar cells (DSSCs). The SGT-102 dye containing bis-fluorenylamine had a better prevented charge recombination than other SGT dyes; leading to improvement in V-oc. As a result, the conversion efficiency of 7.22% was achieved with a Jsc of 12.1 mA cm(-2), V-oc of 865 mV and a FF of 69.1 for the DSSC employing a dye containing the bulky bis-fluorenylamine donor unit, while the DSSC based on a dye containing the bulky bis-phenothiazinylamine donor unit showed a lower J(sc) and V-oc, leading to a lower efficiency of 5.16%, due to slow charge recombination associated with differently geometric structure orientations. (C) 2015 Elsevier B.V. All rights reserved.
- Files in This Item
- There are no files associated with this item.
- Appears in
Collections - Graduate School > Department of Advanced Materials Chemistry > 1. Journal Articles
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.