Enhanced charge transport by incorporating additional thiophene units in the poly(fluorene-thienyl-benzothiadiazole) polymer
Enhanced charge transport by incorporating additional thiophene units in the poly(fluorene-thienyl-benzothiadiazole) polymer
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通过在聚（芴-噻吩基-苯并噻二唑）聚合物中引入额外的噻吩单元来增强电荷传输
DOI：
10.1016/j.orgel.2010.12.009
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发表时间：
2011
影响因子：
3.2
通讯作者：
Chen Z
中科院分区：
文献类型：
--
作者：
Chen Z
我们报告了光学特性、结构和形态、场效应晶体管 (FET) 和太阳能电池性能的比较研究 聚(4-(3,4'-二己基-2,2'-联噻吩-5-基)-7-(5'-(9,9-二辛基-9H-芴-2-基)-3,4'-二己基-2,2'-联噻吩-5-基)苯并[c][1,2,5]噻二唑)(F8TTBTT)及其前体 聚((9,9-二辛基芴)-2,7-二基-alt-[4,7-双(3-己基噻吩-5-基)-2,1,3-苯并噻二唑]-2',2"-二基)(F8TBT)。与F8TBT相比，F8TTBTT的单体结构中多了两个噻吩单元。这种修改导致光学带隙减小，电荷注入改善，并显着增强双极场效应迁移率，空穴达到 5×10−2cm2V−1s−1，电子达到 4×10−3cm2V−1s−1。载流子迁移率的增强很可能是主链平面化和链间相互作用增加的结果。由于双极传输，在操作期间从晶体管通道观察到发光。减小的带隙和改进的电荷传输使 F8TTBTT 也成为太阳能电池应用的有趣候选者。发现基于 F8TTBTT:PCBM 混合物的未优化太阳能电池在 AM 1.5 照明下表现出约 1.54% 的功率转换效率。
We report a comparative study of optical properties, structure and morphology, field-effect transistor (FET) and solar cell performance between poly(4-(3,4′-dihexyl-2,2′-bithiophen-5-yl)-7-(5′-(9,9-dioctyl-9H-fluoren-2-yl)-3,4′-dihexyl-2,2′-bithiophen-5-yl)benzo[c][1,2,5]thiadiazole) (F8TTBTT), and its predecessor poly((9,9-dioctylfluorene)-2,7-diyl-alt-[4,7-bis(3-hexylthien-5-yl)-2,1,3-benzothiadiazole]-2′,2″-diyl) (F8TBT). Compared to F8TBT, F8TTBTT has two more thiophene units incorporated in its monomer structure. Such a modification leads to a reduced optical band gap, improved charge injection and significantly enhanced ambipolar field-effect mobilities reaching 5×10−2cm2V−1s−1for holes and 4×10−3cm2V−1s−1for electrons. The enhanced carrier mobilities are most likely a result of an increased backbone planarization and interchain interaction. As a consequence of ambipolar transport, light-emission was observed from the transistor channel during operation. The reduced band gap and improved charge transport make F8TTBTT an interesting candidate also for solar cell applications. Unoptimized solar cells based on F8TTBTT:PCBM blends were found to exhibit power conversion efficiency under AM 1.5 illumination of ∼1.54%.
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影响因子：
8.6
作者：
B. Friedel;C. McNeill;N. Greenham
通讯作者：
B. Friedel;C. McNeill;N. Greenham
影响因子：
5.5
作者：
Ergang Wang;Ming Wang;Li Wang;Chunhui Duan;Jie Zhang;Wanzhu Cai;Chao He;Hongbin Wu;Yong Cao
通讯作者：
Ergang Wang;Ming Wang;Li Wang;Chunhui Duan;Jie Zhang;Wanzhu Cai;Chao He;Hongbin Wu;Yong Cao
六噻吩单晶分子内振动模式的高压研究
DOI：
--
发表时间：
2001
期刊：
影响因子：
--
作者：
M. Loi;Q. Cai;H. R. Chandrasekhar;M. Chandrasekhar;W. Graupner;G. Bongiovanni;A. Mura;C. Botta;F. Garnier
通讯作者：
F. Garnier
影响因子：
8.6
作者：
J. Schmidtke;Ji‐Seon Kim;J. Gierschner;Carlos Silva;R. Friend
通讯作者：
J. Schmidtke;Ji‐Seon Kim;J. Gierschner;Carlos Silva;R. Friend
影响因子：
3.3
作者：
Milani, Alberto;Brambilla, Luigi;Zerbi, Giuseppe
通讯作者：
Zerbi, Giuseppe