LED量子效率仪的研究  

Study of LED-based quantum efficiency instrument

作　　者：朱小峰 王广才[1] 胡鹏飞 王静[1] 欧琳 池梓榕 李波光 冯九龙 江鹤 李跃龙 赵二刚[1] 马林川 张晓丹[1] 赵颖[1] ZHU Xiaofeng;WANG Guangcai;HU Pengfei;WANG Jing;OU Lin;CHI Zirong;LI Boguang;FENG Jiulong;JIANG He;LI Yuelong;ZHAO Ergang;MA Linchuan;ZHANG Xiaodan;ZHAO Ying(Engineering Research Center of Thin Film Photo-electronics Technology,Ministry of Education,Key Laboratory of Photo-electronic Thin Film Devices and Technology of Tianjin,International Cooperation Base for New PV Technology,China-Europe Joint Research Center for Solar PV Technology of Tianjin,Tianjin 300350,China)

机构地区：[1]南开大学光电子薄膜器件与技术研究所薄膜光电子技术教育部工程研究中心天津市光电子薄膜器件与技术重点实验室新型光伏发电技术国际科技合作基地天津市中欧太阳能光伏发电技术联合研究中心

出　　处：《自动化与仪器仪表》2019年第7期1-5,17,共6页Automation & Instrumentation

基　　金：南开大学中央高校基本科研业务费专项资金(No.63191204);南开大学自制实验教学仪器设备项目基金;南开大学光学信息技术和科学教育部重点实验室(No.2017KFKT010);国家高技术研究发展计划(No.2013AA050302)资助

摘　　要：LED量子效率仪由LED阵列、直流可调稳压电源、PLC、光导管、I-V放大器、数据采集卡、计算机与测试软件组成。与传统量子效率仪相比,利用LED代替氙灯或卤素灯,提供准单色光;利用光导管汇聚光;I-V放大器与数据采集卡代替锁相放大器和斩波器,将太阳电池产生的弱电流信号采集到计算机。未使用单色仪、锁相放大器、斩波器,成本降低;未使用单色仪,测试速度提高,测试时间小于40 s。LED量子效率仪测试结果的不准确度小于0.1%;稳定之后,不稳定度小于0.6%;连续工作9个小时,不重复度小于0.5%。The LED-based quantum efficiency(QE)instrument is composed of LED arrays,direct-current adjustable voltagestabilized power source,PLC,light pipe,I-V amplifier,data acquisition card,computer and test software.Compared with the traditional QE instrument,LEDs is employed as the light source to provide quasi-monochromatic light instead of xenon lamps or halogen lamps.The light is collected by a light pipe.Using I-V amplifier and data acquisition card to replace lock-in amplifier,and chopper is used to collect the weak current signal produced by solar cells to the computer.There is no monochromator,no lock-in amplifier,no chopper,the cost of the LED-based QE instrument is greatly reduced.Without monochrometer,the test speed is improved and the time is less than 40 s.The inaccuracy of test results of the LED-based QE instrument is less than 0.1%.The instability is less than 0.6%in a steady state.The non-repeatability is less than 0.5%in 9 hours'continuous work.

关 键 词：量子效率 LED 太阳电池 LABVIEW 

分 类 号：TQ573.69[化学工程—精细化工]