Organic Photosensitizers Incorporating Rigid Benzo[1,2-b:6,5-b′]dithiophene Segment for High-Performance Dye-Sensitized Solar Cells

Chun Ting Li, Feng Ling Wu, Bing Hsuan Lee, Ming Chang P. Yeh*, Jiann T. Lin

*此作品的通信作者

研究成果: 雜誌貢獻期刊論文同行評審

18 引文 斯高帕斯(Scopus)

摘要

Benzo[1,2-b:6,5-b′]dithiophene (BDT) entity with rigid skeleton is introduced into the conjugated spacer of organic dyes, with triphenylamine as the electron donor and 2-cyanoacrylic acid as the acceptor, have been prepared for dye-sensitized solar cells. Inserting an aromatic entity between BDT and the anchor extends the absorption wavelength of the dyes and improves the dark current suppression efficiency, and consequently leads to better cell performance. Addition of chenodeoxycholic acid coadsorbent alleviates dye aggregation and results in better cell efficiency. The dye inserted with 4H-cyclopenta[2,1-b:3,4-b′]dithiophene entity achieves the best efficiency (9.11%) when I-/I3- was used as the electrolyte. When Co(phen)32+/3+ was used as the electrolyte, the efficiency further boosts to 9.88%.

原文英語
頁(從 - 到)43739-43746
頁數8
期刊ACS Applied Materials and Interfaces
9
發行號50
DOIs
出版狀態已發佈 - 2017 十二月 20

ASJC Scopus subject areas

  • 材料科學(全部)

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