A silole copolymer containing a ladder-type heptacylic arene and naphthobisoxadiazole moieties for highly efficient polymer solar cells

Zhiyun Zhang; Francis Lin; Hsieh-Chih Chen; Hung-Chin Wu; Chin-Lung Chung; Chien Lu; Shih-Hung Liu; Shih-Huang Tung; Wen-Chang Chen; Ken-Tsung Wong; Pi-Tai Chou

doi:10.1039/C4EE03642E

A silole copolymer containing a ladder-type heptacylic arene and naphthobisoxadiazole moieties for highly efficient polymer solar cells†

Zhiyun Zhang,‡^a Francis Lin,‡^a Hsieh-Chih Chen,*^ab Hung-Chin Wu,^c Chin-Lung Chung,^a Chien Lu,^c Shih-Hung Liu,^a Shih-Huang Tung,^d Wen-Chang Chen,^c Ken-Tsung Wong*^a and Pi-Tai Chou*^a

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* Corresponding authors

^a Department of Chemistry, Center of Emerging Material and Advanced Devices, National Taiwan University, Taipei 106, Taiwan
E-mail: kenwong@ntu.edu.tw, chop@ntu.edu.tw

^b Research Center for New Generation Photovoltaics, Graduate Institute of Energy Engineering, National Central University, Jhongli, Taiwan
E-mail: austinchen@ncu.edu.tw

^c Department of Chemical Engineering, National Taiwan University, Taipei 106, Taiwan

^d Institute of Polymer Science and Engineering, National Taiwan University, Taipei 106, Taiwan

Abstract

We report a combination of a silole containing ladder-type heptacylic arene and naphthobisoxadiazole moieties for highly efficient polymer solar cells. This new class of PSiNO polymer possesses a planar, rigid backbone and a low-ordering framework. This unique feature facilitates chain extension, leading to high hole mobility and hence a high PCE of 8.37% without further thermal annealing.

Energy & Environmental Science

A silole copolymer containing a ladder-type heptacylic arene and naphthobisoxadiazole moieties for highly efficient polymer solar cells†

Abstract

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A silole copolymer containing a ladder-type heptacylic arene and naphthobisoxadiazole moieties for highly efficient polymer solar cells

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