4.7 Article

A star-shaped cyclopentadithiophene-based dopant-free hole-transport material for high-performance perovskite solar cells

Journal

CHEMICAL COMMUNICATIONS
Volume 57, Issue 52, Pages 6444-6447

Publisher

ROYAL SOC CHEMISTRY
DOI: 10.1039/d1cc02396a

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Funding

  1. Ministry of Science and Technology [MOST 109-2113-M-031-007]
  2. Ministry of Science and Technology, Taiwan [MOST 108-2628-E-182-003MY3]
  3. Chang Gung University [QZRPD181]
  4. Chang Gung Memorial Hospital, Linkou, Taiwan [CMRPD2J0041]

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A new CPDT-based organic small molecule serves as an efficient dopant-free hole transport material for perovskite solar cells, showing an impressive power conversion efficiency of 19.68% and better stability compared with spiro-OMeTAD.
A new cyclopentadithiophene (CPDT)-based organic small molecule serves as an efficient dopant-free hole transport material (HTM) for perovskite solar cells (PSCs). Upon incorporation of two carbazole groups, the resulting CPDT-based HTM (C-CPDT) shows an impressive power conversion efficiency (PCE) of 19.68% with better stability compared with those of spiro-OMeTAD.

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