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Dimerized Nonfused Electron Acceptor Based on a Thieno[3,4-c]pyrrole-4,6-dione Core for Organic Solar Cells.
Li, Ruonan; Hu, Yuandu; Xu, Yunhua; Wang, Chao; Li, Xin; Liang, Shijie; Liu, Baiqiao; Li, Weiwei.
Affiliation
  • Li R; School of Physical Science and Engineering, Beijing Jiaotong University, Beijing 100044, P. R. China.
  • Hu Y; School of Physical Science and Engineering, Beijing Jiaotong University, Beijing 100044, P. R. China.
  • Xu Y; School of Physical Science and Engineering, Beijing Jiaotong University, Beijing 100044, P. R. China.
  • Wang C; Beijing Advanced Innovation Center for Soft Matter Science and Engineering & State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, P. R. China.
  • Li X; Beijing Advanced Innovation Center for Soft Matter Science and Engineering & State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, P. R. China.
  • Liang S; Beijing Advanced Innovation Center for Soft Matter Science and Engineering & State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, P. R. China.
  • Liu B; Research Center for Frontier Fundamental Studies, Zhejiang Lab, Hangzhou 311121, China.
  • Li W; Beijing Advanced Innovation Center for Soft Matter Science and Engineering & State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing 100029, P. R. China.
ACS Appl Mater Interfaces ; 16(17): 22256-22264, 2024 May 01.
Article in En | MEDLINE | ID: mdl-38651607
ABSTRACT
In this work, the first dimerized nonfused electron acceptor (NFEA), based on thieno[3,4-c]pyrrole-4,6-dione as the core, has been designed and synthesized. The dimerized acceptor and its single counterpart exhibit similar energy levels but different absorption spectra due to their distinct aggregation behavior. The dimerized acceptor-based organic solar cells (OSCs) demonstrate a higher power conversion efficiency of 11.05%, accompanied by enhanced thermal stability. This improvement is attributed to the enhancement of the short-circuit current density and fill factor, along with an increase in the glass transition temperature. Characterizations of exciton dynamics and film morphology reveal that a dimerized acceptor-based device possesses an enhanced exciton dissociation efficiency and a well-established charge transport pathway, explaining its improved photovoltaic performance. All these results indicate that the dimerized NFEA as a promising candidate can achieve efficiency-stability-cost balance in OSCs.
Key words

Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: ACS Appl Mater Interfaces / ACS appl. mater. interfaces (Online) / ACS applied materials & interfaces (Online) Journal subject: BIOTECNOLOGIA / ENGENHARIA BIOMEDICA Year: 2024 Document type: Article Country of publication: United States

Full text: 1 Collection: 01-internacional Database: MEDLINE Language: En Journal: ACS Appl Mater Interfaces / ACS appl. mater. interfaces (Online) / ACS applied materials & interfaces (Online) Journal subject: BIOTECNOLOGIA / ENGENHARIA BIOMEDICA Year: 2024 Document type: Article Country of publication: United States