| 基于咔唑结构的共轭聚合物太阳能电池材料的合成及表征 |
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| 引用本文： | 缴春明 徐,清 周刚明.基于咔唑结构的共轭聚合物太阳能电池材料的合成及表征[J].宁波大学学报(理工版),2016,0(2):128-132. |
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| 作者姓名： | 缴春明 徐 清 周刚明 |
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| 作者单位： | 1.宁波大学 材料科学与化学工程学院, 浙江 宁波 315211; 2.宁波大昌盛博新材料科技有限公司, 浙江 宁波 315021 |
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| 摘 要： | 通过Sukuzi偶联反应, 分别以3种烷基(正辛基、异辛基和十二烷基)咔唑为给体单元, 4,7-二(5-溴-3-己基噻吩-2-基)-5,6-二氟-2,1,3]苯并噻二唑为受体单元, 合成了一系列共轭聚合物, 并研究了不同烷基链对聚合物光吸收性能和电化学能级的影响. 结果表明: 相比于支化的异辛基和较长碳链的十二烷基取代的聚合物, 正辛基取代的聚合物有更广的吸收范围和较窄的光学带隙, 通过XRD可知π-π堆积的间距为4.13 ?; 通过理论计算, 其开路电压(VOC)可达1.15 V, 更适合用作聚合物太阳能电池材料.
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| 关 键 词： | 烷基化咔唑 氟代苯并噻二唑 共轭聚合物 聚合物太阳能电池 |
Synthesis and Characterization of Carbazole Based Conjugated Polymer for Organic Photovoltaics |
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| JIAO Chun-ming,XU Qing,ZHOU Gang-ming.Synthesis and Characterization of Carbazole Based Conjugated Polymer for Organic Photovoltaics[J].Journal of Ningbo University(Natural Science and Engineering Edition),2016,0(2):128-132. |
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| Authors: | JIAO Chun-ming XU Qing ZHOU Gang-ming |
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| Affiliation: | 1.The School of Material Science and Chemical Engineering, Ningbo University, Ningbo 315211, China; 2.Dachang Shengbo Novel Materials Technology Co. Ltd., Ningbo 315021, China |
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| Abstract: | A series of conjugated polymers are synthesized successfully from donor unit with three kinds of alkyls (-octyl, -isooctyl, -dodecyl) carbazole and acceptor unit based on 4,7-bis(5-bromo-3-hexylthiophen-2- yl)-5,6-difluoro-2,1,3]benzothiadiazole via Suzuki coupling reaction. The influence of optical absorption properties and electrochemical energy levels from different kinds of alkyl chains is investigated. Compared with the copolymers of branching isooctyl chain and dodecyl possessing longer carbon chains, the copolymer replaced with octyl exhibits a wider absorption region and narrower optical band gap. Besides, the spacing of π-π stacking is found to be 4.13 ? via XRD spectra, open circuit voltage calculated by the theoretical formula reaches 1.15 V, which proves to be the suitable material for manufacturing the polymer solar cells. |
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| Keywords: | alkylcarbazole fluorined benzothiadiazole conjugated polymers polymer solar cells |
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