Facile synthesis of [1]benzothieno[3,2-b]benzothiophene from o-dihalostilbenes
Facile synthesis of [1]benzothieno[3,2-b]benzothiophene from o-dihalostilbenes
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DOI：
10.1016/j.tetlet.2010.07.152
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发表时间：
2010-10
影响因子：
1.8
通讯作者：
M. Saito;Tatsuya Yamamoto;I. Osaka;E. Miyazaki;K. Takimiya;H. Kuwabara;M. Ikeda
中科院分区：
文献类型：
--
作者：
M. Saito;Tatsuya Yamamoto;I. Osaka;E. Miyazaki;K. Takimiya;H. Kuwabara;M. Ikeda
半导体聚合物以其优异的电学和光学性能，以及使用其溶液易于制造工艺，在各种有机电子器件中的应用引起了极大的关注，如有机发光二极管(OLED)、场效应晶体管(OFET)和太阳能电池，来自学术界和工业界。[1]今天特别感兴趣的是体异质结(BHJ)太阳能电池，它使用施主-受主半导体聚合物和富勒烯分子作为光活层材料，[2]其中功率转换效率(PCE)最近达到了>；[3]因此，它们提供了与传统无机太阳能电池技术不同的重量和灵活性的新的可再生能源的巨大机会。[4]开发高性能半导体聚合物的关键是获得强大的π-π堆积结构，这决定了在BHJ薄膜中产生的电荷载流子的传输特性。[5]因此，引入π-core以确保与聚合物主干之间的强烈分子间相互作用是一项重要的设计策略。最近，Osaka，McCullough和他的同事报道了一系列含有噻唑并噻唑(TzTz)的供体-受体聚合物的开发，TzTz作为富含电子的聚噻吩基的受体单元(图2-1)。
With their great electrical and optical properties and ease of fabrication process using their solutions, semiconducting polymers have been attracting considerable attention for applications in various organic electronic devices such as organic light-emitting diodes (OLEDs), field-effect transistors (OFETs), and solar cells from both academics and industries.[1] Of particular interest today is bulk heterojunction (BHJ) solar cells using donor–acceptor semiconducting polymers as the photoactive layer materials together with fullerene-based molecules,[2] where the power conversion efficiency (PCE) has recently reached> 7%.[3] They thus offer great opportunities as new renewable energy sources with light weight and flexibility that differentiates them from conventional inorganic solar cell technologies.[4] A key to developing high performance semiconducting polymers is to achieve strong π-π stacking structures that determines the transport property of generated charge carriers in the BHJ film.[5] Therefore the incorporation of π-cores that ensure strong intermolecular interactions with the polymer backbone is an important design strategy. Recently, Osaka, McCullough, and co-workers have reported on the development of a series of donor-acceptor polymers bearing thiazolothiazole (TzTz) as an acceptor unit in the electron-rich polythiophene backbone (Figure 2-1).[5]