Publication: Double anchor indolo[3,2-: B] indole-derived metal-free dyes with extra electron donors as efficient sensitizers for dye-sensitized solar cells
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Issued Date
2021-05-07
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ISSN
13699261
11440546
11440546
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2-s2.0-85105456530
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Mahidol University
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SCOPUS
Bibliographic Citation
New Journal of Chemistry. Vol.45, No.17 (2021), 7542-7554
Suggested Citation
Chanyathorn Ruamyart, Pongsakorn Chasing, Taweesak Sudyoadsuk, Vinich Promarak, Nopporn Ruangsupapichat Double anchor indolo[3,2-: B] indole-derived metal-free dyes with extra electron donors as efficient sensitizers for dye-sensitized solar cells. New Journal of Chemistry. Vol.45, No.17 (2021), 7542-7554. doi:10.1039/d0nj06256a Retrieved from: https://repository.li.mahidol.ac.th/handle/123456789/76532
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Double anchor indolo[3,2-: B] indole-derived metal-free dyes with extra electron donors as efficient sensitizers for dye-sensitized solar cells
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Abstract
Two new di-acceptors metal-free organic dyes based on indolo[3,2-b]indole donor backbone with extra electron donors were designed, synthesized, and applied for dye-sensitized solar cells (DSSCs). In this study, the effect of the additional donors was investigated by the replacement of the typical N-alkyl side chain using methoxyphenyl (dye 1) and hexyloxyphenyl (dye 2) as secondary donor groups. Molecular dyes-based di-anchoring models enhanced the significant interaction between sensitizing dyes and the TiO2 surface as well as yielded better light-harvesting efficiency, compared to the familiar core indolo-indole donor. Under global standard condition 1.5 AM, dye 2-based cells show an enhanced overall conversion efficiency of 7.86% while that of the standard commercial N719-based cells is 8.08%. Therefore, the double anchor indolo[3,2-b]indole with additional donors is a promising candidate for efficient DSSCs. This journal is