非对称蒽衍生物半导体材料的设计、组装及光电性能研究

Due to high mobility (μ≥10cm2/Vs) and high fluorescence property (φ≥60%) of anthracene derivatives (such as 2,6-diphenylanthracene as DPA), they become the highlights in the field of organic optoelectronic materials research. Especially in the field of organic and organic light-emitting devices, they received widespread concern. However, like other fused ring molecules, the poor solubility, the regulation of molecular self-assembly and its relationship with performance are the difficulties that all optoelectronic materials need to be further developed. In view of the advantages of simple structure and high performance of DPA, this proposal is based on the comprehensive literature and the applicant's previous work experience, as well as taking anthracene derivatives as an example, to introduce asymmetric structure, to design and synthesize "tadpoles" and other forms of asymmetric anthracene derivatives, through the introduction of the "tail" and other structures to control the material self-assembly process. The influence of self-assembly on the performance and the mechanism of charge transfer were further studied by researching the effects of temperature, solvent and heteroatom on the design of molecular structure. The relationship between the molecular structure of the material and the self-assembly and the performance of the device would be summarized. The films are prepared in order to realize the efficient transport of carriers and study the charge transfer mechanism, as well as provide references for other kinds of asymmetric materials.

蒽衍生物(以2,6-二苯基蒽即DPA为代表)以同时具有高迁移率（μ≥10cm2/Vs）和高荧光性能（φ≥60%）而成为有机光电材料研究领域的佼佼者，在有机场效应和有机发光器件领域更是受到广泛关注。但是，和其他稠环分子一样，溶解性差、分子组装的调控规律及其与性能的关系是所有光电材料进一步发展需要解决的难点。鉴于DPA结构简单却高性能的优点，本项目在综合文献和申请人以往工作经验的基础上，以蒽衍生物为例，引入非对称结构，设计合成“蝌蚪”等形状的非对称蒽衍生物分子，通过引入类似于“尾巴”等结构来调控材料组装过程。通过研究温度、溶剂、杂原子等因素的影响，从分子结构的设计来预测调控材料堆积方式，进一步研究材料堆积对性能的影响及电荷传输机制。总结材料的分子结构与组装及器件性能的关系，制备分子有序堆积的薄膜，实现载流子的高效传输并研究电荷传输机制，并对其它种类非对称材料设计提供借鉴。

蒽衍生物(以2,6-二苯基蒽即DPA为代表)以同时具有高迁移率（μ≥10cm2Vs）和高荧光性能（φ≥60%）而成为有机光电材料研究领域的佼佼者，在有机场效应和有机发光器件领域更是受到广泛关注。本项目以蒽及其类似物为骨架，引入非对称结构，设计合成了系列非对称蒽衍生物分子，通过研究温度、溶剂、杂原子等因素的影响，从分子结构的设计来调控材料堆积方式，通过生长一维，二维单晶，单晶异质结，共晶等来研究分子间的作用力和生长机制；进一步通过构筑有机光电器件来研究材料分子的电荷传输机制；本项目相继开发了系列光电材料，包括有机场效应晶体管材料，有机光热材料，为相关领域的研究尤其是材料设计及组装调控提供了借鉴。项目实施以来，发表SCI论文5篇，项目组成员国内外报告8次，组织相关学术会议2次。