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首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >Structure-property relationships of small bandgap conjugated polymersfor solar cells
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Structure-property relationships of small bandgap conjugated polymersfor solar cells

机译:用于太阳能电池的小带隙共轭聚合物的结构-性质关系

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Conjugated polymers as electron donors in solar cells based on donor/acceptor combinations are ofgreat interest, partly due to the possibility of converting solar light with a low materials budget. Sixsmall bandgap polymers with optical bandgap ranging from 1.0-1.9 eV are presented in this paper. Allpolymers utilize an electron donor-acceptor-donor (DAD) segment in the polymer backbone, creatinga partial charge-transfer, to decrease the bandgap. The design, synthesis and the optical characteristicsas well as the solar cell characteristics of the polymers are discussed. The positions of the energy levelsof the conjugated polymer relative to the electron acceptor are of significant importance and determinenot only the driving force for exciton dissociation but also the maximum open-circuit voltage. Thiswork also focuses on investigating the redox behavior of the described conjugated polymers andelectron acceptors using square wave voltammetry. Comparing the electrochemical data givesimportant information of the structure-property relationships of the polymers.
机译:基于施主/受主组合的共轭聚合物作为太阳能电池中的电子施主受到了广泛的关注,部分原因是可以用低的材料预算转换太阳光。本文介绍了六种带隙在1.0-1.9 eV范围内的小带隙聚合物。所有聚合物利用聚合物主链中的电子供体-受体-供体(DAD)片段,产生部分电荷转移,以降低带隙。讨论了聚合物的设计,合成,光学特性以及太阳能电池特性。共轭聚合物相对于电子受体的能级位置非常重要,不仅决定激子离解的驱动力,而且决定最大开路电压。这项工作还集中于使用方波伏安法研究所述共轭聚合物和电子受体的氧化还原行为。比较电化学数据给出了聚合物的结构-性质关系的重要信息。

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