Influence of PEDOT:PSS buffer layer on the performance of organic photocoupler  

作　　者：王忠强 吴晓明 荆娜 侯庆传 胡子阳 程晓曼 华玉林 魏军 印寿根 

机构地区：[1]Key Laboratory on Display Materials and Photoelectric Devices of Education Ministry of China,Institute of MaterialPhysics,Tianjin Key Laboratory for Photoelectric Materials and Devices,Tianjin University of Technology [2]Singapore Institute of Manufacturing Technology

出　　处：《Optoelectronics Letters》2009年第3期173-176,共4页光电子快报（英文版）

基　　金：supported by the National Natural Science Foundation of China (60676051,60876046);Tianjin Natural Science Foundation(06TXTJJC14603,07JCYBJC12700);the Tianjin Key Discipline of Material Physics and Chemistry

摘　　要：We have fabricated an organic photocoupler with organic light-emitting diodes(OLEDs) with 520 nm emissive wavelength as the input light source and a photodiode(PD) based on poly(3-hexylthiophene)(P3HT):1-(3-methoxycarbonyl)propyl-1-phenyl-(6,6)-C61(PCBM) as the detector.The influences of buffer layer(PEDOT:PSS) on output current(Iout),current transfer ratio(CTR) and time response characteristics of the photocoupler device were studied.Through our experiments,It is found that the output current linearly increases with the input current,the max output current and CTR of the devices with PEDOT:PSS buffer layer are 2 times and 7 times than that of the devices without buffer layer respectively,which show that the existence of buffer layer can enhance the output photocurrent efficiently.Moreover,the existence of PEDOT:PSS eliminates the time delay of the devices.We have fabricated an organic photocoupler with organic light-emitting diodes （OLEDs） with 520 nm emissive wavelength as the input light source and a photodiode （PD） based on poly（3-hexylthiophene） （P3HT）：1-（3-methoxycarbonyl）propyl- 1-phenyl-（6,6）-C61 （PCBM） as the detector. The influences of buffer layer （PEDOT：PSS） on output current （Iout）, current transfer ratio （CTR） and time response characteristics of the photocoupler device were studied. Through our experiments, It is found that the output current linearly increases with the input current, the max output current and CTR of the devices with PEDOT：PSS buffer layer are 2 times and 7 times than that of the devices without buffer layer respectively, which show that the existence of buffer layer can enhance the output photocurrent efficiently. Moreover, the existence of PEDOT：PSS eliminates the time delay of the devices.

关 键 词：PEDOT 藻酸双酯钠 缓冲层 有机发光二极管 OLED显示器 输出电流 性能 时间响应特性 

分 类 号：TN312.8[电子电信—物理电子学]