A new heteroleptic ruthenium sensitizer for transparent dye-sensitized solar cells

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題名:	A new heteroleptic ruthenium sensitizer for transparent dye-sensitized solar cells
作者:	陳家原;Chen, Chia-Yuan;Pootrakulchote, Nuttapol;Chen, Min-Yu;Moehl, Thomas;Tsai, Hui-Hsu;Zakeeruddin, Shaik M.;Wu, Chun-Guey;Grätzel, Michael
貢獻者:	理學院化學學系
關鍵詞:	density functional theory;dye solar cell;ruthenium;thiophene;transient photoelectrical measurement
日期:	2012-12-01
上傳時間:	2026-04-21 14:02:54 (UTC+8)
出版者:	Wiley-VCH Verlag;Weinheim: WILEY-VCH Verlag
摘要:	摘要： A new heteroleptic ruthenium complex, coded CYC‐B19, incorporating an ancillary ligand endowed with hexylthio‐bithiophene segments and a conjugated anchoring ligand with vinyl groups was prepared. This new sensitizer exhibits a lower energy MLCT band centred at 562 nm with a remarkably high molar absorption coefficient of 2.97 × 104 M−1 cm−1. DFT‐TDDFT theoretical calculation revealed that insertion a vinyl group in the anchoring ligand pushes the LUMO electron locating more on the anchoring ligand. This will benefit the electron transfer from dye to TiO2 when the dye molecules were excited by light. Physicochemical measurements and the optimization of electrolyte were done to investigate the potential of CYC‐B19 in TiO2 scattering‐layer free dye‐sensitized solar cells. Not only is a good photovoltaic efficiency of 8.4% reached, but the transparent device sensitized by CYC‐B19 also presents a superior spectral response to its predecessor CYC‐B11. A new ruthenium complex, CYC‐B19, incorporating a hexylthio‐bithiophene based ancillary ligand and a vinyl‐conjugated anchoring ligand, exhibits a MLCT band centred at 562 nm with a high molar absorption coefficient of 2.97 × 104 M−1 cm−1. The transparent device sensitized by CYC‐B19 reaches a good photovoltaic efficiency of 8.4% and a superior spectral response to its predecessor CYC‐B11. 其他題名： Adv. Energy Mater 出版者： Weinheim: WILEY-VCH Verlag 出版日期： 2012-12 出處： Advanced energy materials, 2012-12, Vol.2 (12), p.1503-1509 資源來源： Wiley Online Library - AutoHoldings Journals 版權： Copyright © 2012 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim 版權： Copyright © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim 識別號： ISSN: 1614-6832 識別號： ISSN: 1614-6840 識別號： EISSN: 1614-6840 識別號： DOI: 10.1002/aenm.201200285
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