Synthesis and applications of cyano‐vinylene‐based polymers containing cyclopentadithiophene and dithienosilole units for photovoltaic cells
Synthesis and applications of cyano‐vinylene‐based polymers containing cyclopentadithiophene and dithienosilole units for photovoltaic cells
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DOI：
10.1002/pola.24779
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发表时间：
2011-08
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通讯作者：
Harihara Padhy;Duryodhan Sahu;Dhananjaya Patra;M. Pola;Jen-Hsien Huang;C. Chu;K. Wei;Hong‐Cheu Lin
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文献类型：
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作者：
Harihara Padhy;Duryodhan Sahu;Dhananjaya Patra;M. Pola;Jen-Hsien Huang;C. Chu;K. Wei;Hong‐Cheu Lin
以Pd(PPh3)4为催化剂，通过Stille偶联反应合成了两种含环戊二噻吩（CPDT-CN）和二噻吩硅（DTS-CN）单元的b-氰基噻吩基聚合物。研究了桥接原子（C和Si）和氰基乙烯基对其热学、光学、电化学、电荷输运和光电性能的影响。这两种聚合物的最高已占据分子轨道（HOMO）能级约为5.30 eV，最低未占据分子轨道（LUMO）能级约为3.60 eV，具有宽的吸收范围和窄的光学带隙（约1.6 eV）。本体异质结聚合物太阳能电池（PSC）器件包含有源层
Two b-cyano-thiophenevinylene-based polymers containing cyclopentadithiophene (CPDT-CN) and dithienosilole (DTS-CN) units were synthesized via Stille coupling reaction with Pd(PPh3)4 as a catalyst. The effects of the bridged atoms (C and Si) and cyano-vinylene groups on their thermal, optical, electrochemical, charge transporting, and photovoltaic proper- ties were investigated. Both polymers possessed the highest occupied molecular orbital (HOMO) levels of about � 5.30 eV and the lowest unoccupied molecular orbital (LUMO) levels of about � 3.60 eV, and covered broad absorption ranges with narrow optical band gaps (ca. 1.6 eV). The bulk heterojunction polymer solar cell (PSC) devices containing an active layer of