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Thienopyrazine or Dithiadiazatrindene Containing Low Band Gap Conjugated Polymers for Polymer Solar Cells 被引量:1
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作者 Mukhamed L.Keshtov dmitry v.marochkin +4 位作者 Ying-ying Fu Zhi-yuan Xie 耿延候 Vitaly S.Kochurov Alexei R.Khokhlov 《Chinese Journal of Polymer Science》 SCIE CAS CSCD 2014年第7期844-853,共10页
Four new low-band-gap alternating copolymers (P-1, P-2, P-3 and P-4) based on electron-rich benzodithiophene and newly developed electron-deficient units, thienopyrazine or dithiadiazatrindene derivatives, were synt... Four new low-band-gap alternating copolymers (P-1, P-2, P-3 and P-4) based on electron-rich benzodithiophene and newly developed electron-deficient units, thienopyrazine or dithiadiazatrindene derivatives, were synthesized by Stille polycondensation. All polymers exhibit good solubility in common organic solvents and a broad absorption band in the visible to near-infrared regions. The film optical band gaps of the polymers are in the range of 1.28-2.07 eV and the highest occupied molecular orbital (HOMO) energy levels are in the range of-4.99 eV to -5.28 eV. Bulk heterojunction polymer solar cells (PSCs) of the polymers were fabricated with phenyl-C61-butyric acid methyl ester (PC61BM) as acceptor material, and a power conversion efficiency of 0.80% was realized with P-1 as donor material. 展开更多
关键词 Low band gap Conjugated polymers Electron-deficient aromatics Polymer solar cells.
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