상세정보
학술지
Color temperature tuning of white organic light-emitting diodes via spatial control of micro-cavity effects based on thin metal strips
- 발행일
- 201511
- 출처
- Organic Electronics, v.26, pp.334-339
- ISSN
- 1566-1199
- 출판사
- Elsevier
- 협약과제
- 14PB2200, AMOLED TV용 soluble TFT 및 화소 형성 소재/공정 기술 개발, 이종희
- 초록
- Abstract White organic light-emitting diodes (WOLEDs) are one of the most promising technologies to realize future solid-state lighting with high power efficiency, broad and adjustable spectral coverage, and area emission for more effective and natural illumination. In this work, we report a new method of tuning the correlated color temperature (CCT) of WOLEDs via spatially controlling the degree of the micro-cavity effect in an OLED. Varying the width of thin Ag strips deposited on top of a transparent electrode leads to changes in both intensity and phase of reflection at the anode, hence significantly altering emission spectra of proposed WOLEDs. CCT of the implemented WOLEDs span a wide range, from 3000 K to 8000 K, demonstrating that our proposed approach helps to meet the need for lighting with various CCTs.
- KSP 제안 키워드
- Natural illumination, Organic light-emitting diodes(OLEDS), Solid state lighting, Spatial control, Temperature tuning, White organic light-emitting diodes, Wide range, correlated color temperature, emission spectra, high power efficiency, light-emitting diode(LED)