- Synthesis and photovoltaic effect in dithieno[2,3-d:2′,3′- d′]benzo[1,2-b:4,5-b′]dithiophene-based conjugated polymers
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Conjugated polymers based on a heteroacene, 3,7-dialkyl-dithieno[2,3-d: 2′,3′-d′]benzo[1,2-b:4,5-b′]dithiophene (DBD), are synthesized. These polymers show broad UV-vis absorption with energy bandgaps below 1.7 eV. PTDBD2, showing good miscibility in a polymer/phenyl-C71-butyric acid methyl ester (PC71BM) blend film, achieves a power conversion efficiency (PCE) of 7.6%. The results indicate that copolymers containing DBD are promising candidates for high-performance organic solar cells. Copyright
- Son, Hae Jung,Lu, Luyao,Chen, Wei,Xu, Tao,Zheng, Tianyue,Carsten, Bridget,Strzalka, Joseph,Darling, Seth B.,Chen, Lin X.,Yu, Luping
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- organinc semiconductor compound and organic solar cell having them
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The present invention relates to a compound for an organic semiconductor material with a low band gap and an organic solar cell including the same. In the present invention, provided is a dithienobenzodithiophene derived compound which has outstanding hole mobility, a low band gap, a large light-absorbing area and a proper molecular level and accordingly is used as organic photoelectron device like an organic photo detector (OPD), an organic light emitting diode (OLED), an organic thin film transistor (OTFT) and an organic solar cell where the organic solar cell having the compound is provided, thereby leading to a power conversion efficiency (PCE).
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