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学科主题: 高分子化学
题名: Influence of moiety sequence on the performance of small molecular photovoltaic materials
其他题名: 基元顺序对小分子光伏材料性能的影响
作者: Liang L(梁龙)1; Wang JT(王金土)1; Xiang X(项宣)1; Ling J(凌君)1; Zhao FG(赵福刚)1; Li WS(李维实)1
通讯作者: 李维实
刊名: J. Mater. Chem. A
发表日期: 2014
DOI: 10.1039/c4ta03125c
卷: 2, 期:37, 页:15396-15405
收录类别: SCI
英文摘要: The purpose of this work is to study the impact of moiety sequence in the chemical structure of small molecular photovoltaic materials on their basic properties and photovoltaic performance. For this aim, two isomeric compounds, namely BDT(ThBTTh)(2) and BDT(BTTh2)(2), have been designed and synthesized by exchanging benzothiadiazole and thiophene positions with a structural variation. As compared with BDT(BTTh2)(2), BDT(ThBTTh)(2) possesses a lower melting point, a blue-shifted absorption spectrum in solution, and slightly lower-lying highest occupied and lowest unoccupied molecular orbitals. More interestingly, the hole mobility of the BDT(ThBTTh)(2) neat film is 0.1 cm(2) V-1 s(-1), which is three-orders of magnitude larger than that of BDT(BTTh2)(2). Furthermore, these two compounds display significantly different photovoltaic performance, 4.53% for BDT(ThBTTh)(2) versus 1.58% for BDT(BTTh2)(2) in terms of their power conversion efficiency.
语种: 英语
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内容类型: 期刊论文
URI标识: http://ir.sioc.ac.cn/handle/331003/38905
Appears in Collections:高分子材料研究室_期刊论文

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作者单位: 1.中科院上海有机化学研究所
2.浙江理工大学
3.浙江大学

Recommended Citation:
Liang L,Wang JT,Xiang X,et al. Influence of moiety sequence on the performance of small molecular photovoltaic materials[J]. J. Mater. Chem. A,2014,2(37):15396-15405.
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