摘要
研制出特征频率 fT≥ 2 2 0MHz ,且具有较高光电灵敏度和最大峰值电流的光电负阻器件———达林顿光电λ型双极晶体管 (DPLBT) ,并首先用发光二极管 (LED)和光电负阻器件(DPLBT)封装成一种和常规光电耦合器不同的具有光电流开关、光控电流双稳态和光控正弦波振荡多种功能的新型光电耦合器 (PCDPLBT)。
Photo negative resistance device--Darlington photo Lambda bipolar transistor(DPLBT) with the cut off frequency f T over 220 MHz and the higher photo sensitivity and maximum peak current has been fabricated. A new photocoupler with the function of the photocurrent switching, optical bistability and the light controlled sine wave oscillation has been packaged by using a LED and a DPLBT for the first time. It is different from the conventional photo insulator.
出处
《半导体光电》
CAS
CSCD
北大核心
2002年第1期16-19,32,共5页
Semiconductor Optoelectronics
基金
天津市自然科学基金资助项目 (9836 0 14 11)
关键词
光电负阻器件
光学双稳态
光控正弦波振荡器
光电耦合器
photo negative resistance device
optical bistability
light controlled sine wave oscillator
photo insulator
