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Investigation of Luminance Degradation in Organic Light-Emitting Diodes by Impedance Spectroscopy

Title
Investigation of Luminance Degradation in Organic Light-Emitting Diodes by Impedance Spectroscopy
Author
신동수
Keywords
Organic light-emitting diodes; impedance spectroscopy; degradation
Issue Date
2018-07
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Citation
IEEE PHOTONICS TECHNOLOGY LETTERS, v. 30, no. 13, page. 1183-1185
Abstract
We characterize the degradation of organic light-emitting diodes (OLEDs) by employing the impedance spectroscopy. An integrated OLED is compared with the hole only device (HOD) and the electron-only device to understand the degradation mechanism under voltage stress for 12 h in ambient conditions. Changes in impedance observed from the Cole-Cole plot of the HOD reveal that the degradation mechanism of the OLED is attributed to unbalanced recombination resulting from the deterioration of hole injection into the emissive layer.
URI
https://ieeexplore.ieee.org/document/8361021https://repository.hanyang.ac.kr/handle/20.500.11754/119484
ISSN
1041-1135; 1941-0174
DOI
10.1109/LPT.2018.2838099
Appears in Collections:
GRADUATE SCHOOL[S](대학원) > BIONANOTECHNOLOGY(바이오나노학과) > Articles
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