Synthesis of New Donor-Acceptor Copolymer and Its Application in Organic Bulk Hetero-junction Solar Cells

doi:10.6023/cjoc201212017

Chin. J. Org. Chem. ›› 2013, Vol. 33 ›› Issue (07): 1522-1526.DOI: 10.6023/cjoc201212017 Previous Articles Next Articles

Notes

新型给体-受体型聚合物的合成及其在本体异质结聚合物太阳能电池中的应用

邹文武^a, 刘颖^b, 贾庆明^a, 葛子义^b

a 昆明理工大学化学工程学院昆明 650500;
b 中国科学院宁波材料技术与工程研究所宁波 315201

收稿日期:2012-12-12 修回日期:2013-02-23 发布日期:2013-03-01
通讯作者: 贾庆明, 葛子义 E-mail:jiaqm411@163.com
基金资助:
国际自然科学基金(No. 21074144)资助项目.

Synthesis of New Donor-Acceptor Copolymer and Its Application in Organic Bulk Hetero-junction Solar Cells

Zou Wenwu^a, Liu Ying^b, Jia Qingming^a, Ge Ziyi^b

a Faculty of Chemical Engineering, Kunming University of Science and Technology, Kunming Yunnan Province, Kunming 650500;
b Ningbo Institute of Materials Technology & Engineering, Chinese Academy of Sciences, Ningbo 315201

Received:2012-12-12 Revised:2013-02-23 Published:2013-03-01
Supported by:
Project supported by the National Natural Science Foundation of China (No. 21074144).

Alternative copolymer (PBDTDT) was synthesized from acceptor unit with strong electro-withdrawing structure of dibutyl malonate in branch chain and donor unit based on benzo[1,2-b:4,5-b']dithiophene. And its thermal, optical, electrochemical properties and photovoltaic properties blending with[6,6]-phenyl-C₇₁ butyric acid methyl ester as the active layer in the bulk hetero-junction devices of organic solar cells were investigated. The influence of different ratio of polymer PBDTDT and PC₇₁BM on the photovoltaic properties was also studied. And the open voltage reached 0.82 V, when the weight ratio of PBDTDT and PC₇₁BM is 1:3, and its power conversion efficiency (PCE) was 0.90%, with V_oc of 0.82 V, J_sc of 3.25 mA/cm² and FF of 33.8%. Comparing with the poly(3-hexylthiophene) (P3HT) in the same method, the solar cells with P3HT blending with PC₇₁BM as the active layer can only get 0.55 V, which can be lower about 0.29 V than that of the PBDTDT. And the possible factors resulting in low PCE and the higher open voltage than that of P3HT were analyzed.

Key words: dibutyl malonate, alternative copolymer, organic solar cells

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Zou Wenwu, Liu Ying, Jia Qingming, Ge Ziyi. Synthesis of New Donor-Acceptor Copolymer and Its Application in Organic Bulk Hetero-junction Solar Cells[J]. Chin. J. Org. Chem., 2013, 33(07): 1522-1526.

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新型给体-受体型聚合物的合成及其在本体异质结聚合物太阳能电池中的应用

Synthesis of New Donor-Acceptor Copolymer and Its Application in Organic Bulk Hetero-junction Solar Cells

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