Organic photodiode with dual functions of indoor photovoltaic and high-speed photodetector  

作　　者：Tae Wook Kim Sung Hyun Kim Jae Won Shim Do Kyung Hwang 

机构地区：[1]Center of Opto-Electronic Materials and Devices,Post-Silicon Semiconductor Institute,Korea Institute of Science and Technology(KIST),Seoul,02792,Republic of Korea [2]School of Electrical Engineering,Korea University,Seoul,02841,Republic of Korea [3]Division of Nano&Information Technology,KIST School,University of Science and Technology(UST),Seoul,02792,Republic of Korea

出　　处：《Frontiers of Optoelectronics》2022年第2期45-51,共7页光电子前沿（英文版）

基　　金：D.K.Hwang acknowledges financial support from the Korea Institute of Science and Technology(KIST)Institution Program(2E31532);J.W.Shim acknowledges financial support from the Technology Innovation Program(grant number:20011336)funded by the Ministry of Trade,Industry&Energy(MOTIE,Republic of Korea).

摘　　要：Energy harvesting and light detection are key technologies in various emerging optoelectronic applications.The high absorption capability and bandgap tunability of organic semiconductors make them promising candidates for such applications.Herein,a poly(3-hexylthiophene-2,5-diyl)(P3HT):indene-C60 bisadduct(ICBA)bulk heterojunction-based organic photodiode(OPD)was reported,demonstrating dual functionality as an indoor photovoltaic(PV)and as a high-speed photodetector.This OPD demonstrated decent indoor PV performance with a power conversion efficiency(PCE)of(11.6±0.5)%under a light emitting diode(LED)lamp with a luminance of 1000 lx.As a photodetector,this device exhibited a decent photoresponsivity of 0.15 A/W(green light)with an excellent linear dynamic range(LDR)of over 127 dB within the optical power range of 3.74×10^(−7) to 9.6×10^(−2) W/cm^(2).Furthermore,fast photoswitching behaviors could be observed with the rising/falling times of 14.5/10.4μs and a cutoff(3 dB)frequency of 37 kHz.These results might pave the way for further development of organic optoelectronic applications.

关 键 词：Organic semiconductor PHOTODIODE Indoor photovoltaics PHOTODETECTOR 

分 类 号：TN312.8[电子电信—物理电子学]