Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference (한국전기전자재료학회:학술대회논문집)
- 2002.04b
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- Pages.77-80
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- 2002
Photocurrent multiplication process in OLEDs
Photocurrent에 의한 유기발광소자의 발광효율특성 연구
Abstract
In order to enhence the photocurrent multiplication process, we controlled the irradiation light and the material of cathode layer of organic light emitting diodes (OLEDs). The structures of OLEDs were indium tin oxaide (ITO)/ copper(II) phthalocyanine (CuPc)/triphenyl-diamine (TPD)/ tris-(8-hydroxyquinoline)aluminum (Alq3)/ aluminum (Al). We found that OLEDs were changed by the photocurrent and free charge carrier multiplication process due to the irradiation of light. The rate of photocurrent was increased by the irradiation of red and blue light.