Efficient all-small-molecule organic solar cells processed with non-halogen solvent

All-small-molecule organic solar cells with good batch-to-batch reproducibility combined with non-halogen solvent processing show great potential for commercialization. However, non-halogen solvent processing of all-small-molecule organic solar cells are rarely reported and its power conversion efficiencies are very difficult to improve. Herein, we designed and synthesized a small molecule donor BM-ClEH that can take advantage of strong aggregation property induced by intramolecular chlorine-sulfur non-covalent interaction to improve molecular pre-aggregation in tetrahydrofuran and corresponding micromorphology after film formation. Tetrahydrofuran-fabricated all-small-molecule organic solar cells based on…

• NN
  National Natural Science Foundation of China

  Award: 51961165102
• RG
  Research Grants Council, University Grants Committee

  Award: 15320216, 15221320, C5037-18G
• HU
  Huaqiao University
• HK
  Hong Kong Polytechnic University

  Awards: 8-8480, G-SAC5, 2019B121205001
• GS
  Guangdong Science and Technology Department

  Award: 2019B121205001
• ST
  Science, Technology and Innovation Commission of Shenzhen Municipality

  Award: JCYJ20200109105003940