CAJ | 학술논문

为了精确测定弱电导材料中载流子迁移率，采用渡越时间方法测量了8-羟基喹啉配合物（ Alq3）的载流子迁移率，对渡越时间方法需要的实验条件进行了理论分析和实验验证，讨论了激发光源的波长、单脉冲能量以及测量电路的积分时间常数的选取对材料载流子迁移率测量结果的影响。结果表明，采用渡越时间方法测量弱电导半导体材料中载流子迁移率时，只有严格选取合适的测量条件，才可能获得准确、可靠的测试结果。此结论有助于对有机电致发光器件载流子迁移率进行精确测定。
위료정학측정약전도재료중재류자천이솔，채용도월시간방법측량료8-간기규람배합물（ Alq3）적재류자천이솔，대도월시간방법수요적실험조건진행료이론분석화실험험증，토론료격발광원적파장、단맥충능량이급측량전로적적분시간상수적선취대재료재류자천이솔측량결과적영향。결과표명，채용도월시간방법측량약전도반도체재료중재류자천이솔시，지유엄격선취합괄적측량조건，재가능획득준학、가고적측시결과。차결론유조우대유궤전치발광기건재류자천이솔진행정학측정。
In order to measure the carrier mobility of weak conductive material accurately , the charge carrier mobility of Alq3 was measured with the method of time of flight ( TOF ) .The experimental conditions of TOF were analyzed theoretically and verified experimentally .The effects of the wavelength of the excitation light source , the single pulse energy and the selection of integration time constant of circuit measurement on the material carrier mobility measurement results were discussed .The results show that TOF is a typical optical measurement method .But it is possible to obtain accurate and reliable test results when measuring the carrier mobility of weak conductive material by means of TOF only if selecting appropriate measurement conditions strictly .This conclusion is helpful for the accurate measurement of carrier mobility of organic electroluminescent device .