π-Linkage effect of push-pull-structure organic small molecules for photovoltaic application

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• 作者：Rui Wu 吴睿 ; Lunxiang Yin 殷伦祥 ; Yanqin Li 李艳芹
• 刊名：Science China Materials
• 出版年：2016
• 出版时间：May 2016
• 年：2016
• 卷：59
• 期：5
• 页码：371-388
• 全文大小：2,107 KB
• 刊物类别：Materials Science, general; Chemistry/Food Science, general;
• 刊物主题：Materials Science, general; Chemistry/Food Science, general;
• 出版者：Science China Press
• ISSN：2199-4501
• 卷排序：59

文摘

Much attention has been paid to the push-pullstructure organic small molecule (OSM) materials for photovoltaic (PV) application in the past decade, due to their facile reduction of energy band gap (E_g) and effective control of PV properties. π-bridge plays an important role in the push-pull-structure OSMs since an appropriate π-linkage is crucial for improving the PV performance of organic solar cells (OSCs). In this review, various π-bridge groups (thiophene, alkene, alkyne, arene and heterocycle) and the pertinent π-linkage effect will be systematically summarized. These results suggest that the in-depth study of the π-linkage effect is essential to deeply understanding the relationship between the molecular structure and property, thus improving PV performance.Keywordsπ-linkage effectpush-pull-structurephotovoltaicorganic solar cells