journal article·2019-05-29

Impact of the Bonding Sites at the Inner or Outer π-Bridged Positions for Non-Fullerene Acceptors

Shouli Ming, Cai’e Zhang, Pengcheng Jiang, Qinglin Jiang, Zaifei Ma, Jinsheng Song, Zhishan Bo

ACS Applied Materials & Interfaces· Volume 11· Issue 21
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Abstract

Two A−π–D−π–A-type non-fullerene acceptors (IDT-ToFIC and IDT-TiFIC) with 5-hexylthienyl chains substituted at the inner and outer β-positions of the thiophene π-bridge have been designed, respectively. Impacts of varied positional modifications are systematically studied. By utilizing PBDB-T as the donor, polymer solar cells are constructed with these two molecules as acceptors. Power conversion efficiencies of 11.09 and 9.46% are acquired for IDT-ToFIC- and IDT-TiFIC-based devices, respectively. Our studies have demonstrated that the use of thiophene spacers carrying one conjugated side chain at different positions can markedly enhance the photovoltaic properties relative to the corresponding control molecule IDTT2F.
Source: openalex_inverted_index · Quality: baseline

Research context

OpenAlex topics: Organic Electronics and Photovoltaics · Conducting polymers and applications · Fullerene Chemistry and Applications

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Beijing Key Laboratory of Energy Conversion and Storage Materials, College of Chemistry, Beijing Normal University, Beijing 100875, China

College of Chemistry and Molecular Engineering, Qingdao University of Science & Technology, Qingdao 266042, China

Center for Advanced Low-Dimension Materials, State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai 201620, China

Engineering Research Center for Nanomaterials, Henan University, Kaifeng 475004, China

Funding

Changjiang Scholar Program of Chinese Ministry of Education · National Natural Science Foundation of China · Henan Province

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