脉冲激光光声微量量热法研究薄膜激发态的非辐射衰减  

Study on non-radiative decay of excited states in thin film by pulsed laser photoacoustic calorimetry

作　　者：杨俊林[1,2] 徐广智[1] 

机构地区：[1]中国科学院化学研究所 [2]中国科学院生物物理研究所

出　　处：《分析仪器》1996年第3期6-8,共3页Analytical Instrumentation

基　　金：国家自然科学基金资助课题

摘　　要：利用自己设计的光声信号系统研究了薄膜激发态的非辐射衰减。在同样的实验条件下,通过比较样品和标准物质光声信号的积分面积,即可测得团体薄膜非辐射衰减的量子产率。测量时,只需要旋转样品及标准物质在光路上的方向,不需要将膜从传感器上揭下来。此装置可用来研究光学透明薄膜或厚膜。The non-radiative decay of the excited states in thin films was investigated by pulsed laser photoacoustic calorime-try using a homemade photoacoustic cell. Under identical experimental conditions, the quantum of the nonradia-tive decay in solid film was determined by comparing the integral area of photoacoustic signal of the sample with that of the reference material. The measurement was performed simply by turning the directions of sample and reference material in the light way without detaching the film from the sensor.

关 键 词：脉冲激光 光声量热法 量子产率 量热法 薄膜 

分 类 号：O484.41[理学—固体物理]