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전면 유기발광 다이오드 제작시 Mg:Ag 캐소드 최적화 및 LiF 전자주입층 유무에 따른 소자 특성에 관한 연구Optimization of Mg:Ag Cathodes and Effect of LiF electron injection layer on the Characteristics of Top Emission Organic Light Emitting Diodes
- Other Titles
- Optimization of Mg:Ag Cathodes and Effect of LiF electron injection layer on the Characteristics of Top Emission Organic Light Emitting Diodes
- Issue Date
- Mar-2022
- Publisher
- 한국반도체디스플레이기술학회
- Keywords
- Top emission organic light emitting diode(OLED); lithium fluoride(LiF); cathode; energy band diagram; luminance; current density
- Citation
- 반도체디스플레이기술학회지, v.21, no.1, pp.71 - 74
- Journal Title
- 반도체디스플레이기술학회지
- Volume
- 21
- Number
- 1
- Start Page
- 71
- End Page
- 74
- ISSN
- 1738-2270
- Abstract
- For the process simplification in the fabrication of organic light emitting diode(OLED), top emission OLED(TEOLED) was fabricated without lithium fluoride(LiF) used as an electron injection layer (EIL). After co-deposition of Mg and Ag with a different process conditions, a cathode material adjacent to EIL was optimized when Mg and Ag have a ratio of 1:9 considering sheet resistance and transmittance. From the energy band diagram of TEOLED, band gap difference between Trisaluminium (Alq3) and Mg:Ag cathode show the difference of 0.4 eV according to the usage of LiF The fabricated TEOLED without LiF showed the improvement of 5.2 % and 2.7 % in the luminance and the current density comparing that with LiF. The results show there is no significant difference in OLED characteristics regardless of LIF layer in the TEOLED structures.
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Collections - IT융합대학 > 전자공학과 > 1. Journal Articles
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