Steric Effect of N-Substituted Triphenylamine on Double-Anchored Phenothiazine Dye-Sensitized Solar Cells

Bo Yu Han, Tzu Ying Pan, Yi Chen Wu, Jiann T. Lin, Hsien Hsin Chou, Chun Ting Li*

*此作品的通信作者

研究成果: 雜誌貢獻期刊論文同行評審

8 引文 斯高帕斯(Scopus)

摘要

Bulky N-substituents of 4-(hexyloxy) phenyl-substituted and 4-(hexylthio)phenyl-substituted triphenylamine (TPA) were successfully introduced into double-anchored phenothiazine (PTZ) dyes (TY1-TY3) as capping moieties for metal-free organic sensitizers in dye-sensitized solar cells (DSSCs). Among TY dyes, the N-substituent of 4-(hexyloxy)phenyl-substituted TPA provided the best steric matching to its double-anchored PTZ dye having a small π-bridge of thiophene (TY1) and thereby facilitated the most compact dye packing as well as formed the most integrated shelter layer on the TiO2 surface. Effective dark current suppression supported by TY1 resulted in a good DSSC performance of 10.47% at 1 sun and 21.2% at 1 klux (Philips T5 lamp) with the presence of chenodeoxycholic acid (CDCA) as the co-adsorbent; this cell efficacy was higher than that of the reference N719-based (9.10% at 1 sun) and HL5-based DSSCs (8.34% at 1 sun).

原文英語
頁(從 - 到)3778-3788
頁數11
期刊ACS Applied Energy Materials
6
發行號7
DOIs
出版狀態已發佈 - 2023 4月 10

ASJC Scopus subject areas

  • 化學工程(雜項)
  • 能源工程與電力技術
  • 電化學
  • 材料化學
  • 電氣與電子工程

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