Evolution of luminance by voltage in organic light-emitting diodes
SCIE
SCOPUS
- Title
- Evolution of luminance by voltage in organic light-emitting diodes
- Authors
- Weon, BM; Kim, SY; Lee, JL; Je, JH
- Date Issued
- 2006-01-02
- Publisher
- AMER INST PHYSICS
- Abstract
- We study degradation behaviors of luminance and voltage in organic light-emitting diodes. We find that normalized luminance and inverse normalized voltage with time, L(t) and V(t)(-1), follow the stretched exponential decay. On this basis, we derive a general relation of luminance and voltage with time as L(t) = V(t)(-delta(t)), where delta(t) indicates a decay exponent, which is attributed to time-dependent space-charge limitation. Here the observation of higher delta(t) at higher initial luminance explains why luminance decay is faster at higher initial luminance. (c) 2006 American Institute of Physics.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/24250
- DOI
- 10.1063/1.2159563
- ISSN
- 0003-6951
- Article Type
- Article
- Citation
- APPLIED PHYSICS LETTERS, vol. 88, no. 1, 2006-01-02
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