Design of soluble hyperbranched polythiophenes with tailor-made optoelectronic properties.
Design of soluble hyperbranched polythiophenes with tailor-made optoelectronic properties.
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DOI：
10.1002/marc.200900186
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发表时间：
2009-08
影响因子：
4.6
通讯作者：
Thomas V. Richter;Steffen Link;R. Hanselmann;S. Ludwigs
中科院分区：
文献类型：
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作者：
Thomas V. Richter;Steffen Link;R. Hanselmann;S. Ludwigs
采用支化共轭单体氧化偶联的简单一锅合成方法制备了超支化多噻吩。建筑单元和建筑结构的微小变化会导致吸收和光致发光性能的巨大差异。有趣的是，相对小分子质量的可溶性超支化多噻吩在低波长和高波长的吸收比线性类似物，如高分子质量的聚（3-己基噻吩）增强。通过这种多用途的方法，我们提出了一种在光电子学中具有潜在应用的定制功能材料的设计方法。
Hyperbranched polythiophenes were prepared via a simple one-pot synthesis approach based on oxidative coupling of branched conjugated monomers. Only small variations in the building unit and architecture lead to large differences of absorption and photoluminescence properties. Interestingly, soluble hyperbranched polythiophenes with relatively small molecular weights show enhanced absorption at low and high wavelengths compared to linear analogues, such as poly(3-hexyl thiophenes) with high molecular weights. With this versatile approach we present a method to design tailor made, functional materials with potential applications in optoelectronics.