Title of article
Tailoring side chains of low band gap polymers for high efficiency polymer solar cells
Author/Authors
Li، نويسنده , , Weiwei and Qin، نويسنده , , Ruiping and Zhou، نويسنده , , Yi and Andersson، نويسنده , , Mattias and Li، نويسنده , , Fenghong and Zhang، نويسنده , , Chi and Li، نويسنده , , Binsong and Liu، نويسنده , , Zhengping and Bo، نويسنده , , Zhishan and Zhang، نويسنده , , Fengling، نويسنده ,
Issue Information
دوهفته نامه با شماره پیاپی سال 2010
Pages
8
From page
3031
To page
3038
Abstract
High efficiency organic solar cells (OSCs) require conjugated polymers with a low band gap, broad absorption in visible and IR region, high carrier mobility, and relatively high molecular weight as p-type donor materials. Flexible side chains on the rigid polymer backbone are crucial for the solubility of conjugated polymers. In this work, four polymers with the main chain structure of fluorene-thiophene-benzothiadiazole-thiophene and flexible side chains located on fluorene, thiophene, and benzothiadiazole moiety, respectively, have been synthesized by Suzuki–Miyaura–Schlüter polycondensation. Photovoltaic device measurements with a device configuration of ITO/polymer:PC71BM blends/LiF/Al show that P1 carrying octyloxy chains on benzothiadiazole rings gives the best performance, with a power conversion efficiency of 3.1%.
Keywords
Low band gap , organic solar cell , Side chains
Journal title
Polymer
Serial Year
2010
Journal title
Polymer
Record number
1734919
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