有机光电材料载流子迁移率测量方法

Method for Measuring Carrier Mobility of Organic Optoelectronic Materials

有机光电材料大致可分为小分子或低聚物和聚合物两类。载流子迁移率是衡量有机光电材料导电性能的重要参数,直接关系到材料对电荷的传输能力。因此,测量材料的载流子迁移率是研究有机光电材料的基本工作之一。通过对几种不同测试方法的总结与分析,报道了几种载流子迁移率测试技术,并指出各种测试方法的应用原理及适用的测试范围,对采用合理的手段研究考察载流子在有机光电材料及器件中的传输特性及其对有机光电器件的性能影响有重要的意义。

Organic optoelectronic materials can be generally divided into two types such as small molecules or oligomers and polymers. Charge carrier mobility is an important parameter to evaluate the electrical conductivity of organic optoelectronic materials, which is directly related to the charge transport property. Therefore, the measurement of charge carrier mobility is one of the basic tasks in studies of organic optoelectronic materials. Through the summary and analysis of several different testing methods, the testing technology of several charge carrier mobility is reported, and the applicable principles of the testing methods and applicable testing ranges are pointed to. It is of great significance to study the charge carrier transmission in organic optoelectronic materials and the performance of organic optoelectronic devices.