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A dC/dV Measurement for Quantum-Dot Light-Emitting Diodes
文献摘要:
We present dC/dV analysis based on the capacitance-volt age(C-V)measurement of quantum-dot light-emitting diodes(QLEDs),and find that some key device operating parameters(electrical and optical turn-on volt-age,peak capacitance,maximum efficiency)can be directly related to the turning points and maximum/minimum of the dC/dV(versus voltage)curve.By the dC/dV study,the behaviors such as low turn-on voltage,simultane-ous electrical and optical turn-on process,and carrier accumulation during the device aging can be well explained.Moreover,we perform the C-V and dC/dV measurement of aged devices,and confirm that our dC/dV analysis is correct for them.Thus,our dC/dV analysis method can be applied universally for QLED devices.It provides an in-depth understanding of carrier dynamics in QLEDs through simple C-V measurement.
文献关键词:
作者姓名:
Jingrui Ma;Haodong Tang;Xiangwei Qu;Guohong Xiang;Siqi Jia;Pai Liu;Kai Wang;Xiao Wei Sun
作者机构:
Key Laboratory of Energy Conversion and Storage Technologies(SUSTech)of Ministry of Education,Guangdong-Hong Kong-Macao Joint Laboratory for Photonic-Thermal-Electrical Energy Materials and Devices,SUSTech-Huawei Joint Lab for Photonics Industry,and Department of Electrical and Electronic Engineering,Southern University of Science and Technology,Shenzhen 518055,China;Institute of Nanoscience and Applications,Southern University of Science and Technology,Shenzhen 518055,China;Shenzhen Planck Innovation Technologies Co.Ltd.,Shenzhen 518173,China
引用格式:
[1]Jingrui Ma;Haodong Tang;Xiangwei Qu;Guohong Xiang;Siqi Jia;Pai Liu;Kai Wang;Xiao Wei Sun-.A dC/dV Measurement for Quantum-Dot Light-Emitting Diodes)[J].中国物理快报(英文版),2022(12):98-102
A类:
B类:
dC,dV,Measurement,Quantum,Dot,Light,Emitting,Diodes,We,present,analysis,capacitance,measurement,quantum,dot,light,emitting,diodes,QLEDs,find,that,some,key,operating,parameters,electrical,optical,peak,maximum,efficiency,can,directly,related,turning,points,minimum,versus,voltage,curve,By,study,behaviors,such,low,simultane,ous,process,carrier,accumulation,during,aging,well,explained,Moreover,perform,aged,devices,confirm,our,correct,them,Thus,method,applied,universally,It,provides,depth,understanding,dynamics,through,simple
AB值:
0.52231
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