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近几年光电功能有机单晶的研究取得一些重要进展,是有机光电材料研究领域新的热点.与无定形材料相比,有机单晶具有高的稳定性、结构上的有序性、高的载流子迁移率等特性,在光电器件应用方面具有诸多优势.单晶具有明确的结构,为研究有机分子间的基本作用力(超分子作用)、分子的堆积模式等对光电性能(发光、载流子迁移等)的影响提供了一个极好的载体.通过调控有机晶体中的分子排列,有机晶体的发光效率已超过80%,载流子迁移率达10cm~2·V~(-1)·s~(-1)水平,并在多种晶体中观测到放大受激发射现象.本文着重介绍光电功能有机单晶的研究进展,其中涉及一些相关的基本原理介绍.
In recent years, some important progresses have been made in the research of the photoelectric organic single crystal, which is a new hot topic in the field of organic optoelectronic materials. Compared with the amorphous materials, the organic single crystal has high stability, structural order, high Carrier mobility and other characteristics, has many advantages in the application of optoelectronic devices.Single crystal has a clear structure, in order to study the basic forces (supramolecular interactions) between organic molecules, molecular stacking modes and other optical and electrical properties (light, Carrier mobility, etc.) by regulating the molecular arrangement of organic crystals, the luminous efficiency of organic crystals has exceeded 80%, the carrier mobility of 10cm ~ 2 · V ~ (-1) ) · S ~ (-1), and the phenomenon of amplification and stimulated emission was observed in many kinds of crystals.This paper mainly introduced the research progress of the photoelectric functional organic single crystal, and introduced some related basic principles.