Title :
White light emission from InGaN/organic molecule light-emitting diode
Author :
Zhounan Yue ; Yuk Fai Cheung ; Hoi Wai Choi ; Zujin Zhao ; Ben Zhong Tang ; Kam Sing Wong
Author_Institution :
Dept. of Phys., Hong Kong Univ. of Sci. & Technol., Kowloon, China
fDate :
June 30 2013-July 4 2013
Abstract :
Aggregation-induced emission (AIE) organic molecule 4,7-Bis[4-(1,2,2-triphenylvinyl)phenyl]benzo-2,1,3-thiadiazole (BTPETD) was used as a top emitter on GaN-based light-emitting diode (LED) to produce white light. The fabricated hybrid organic/inorganic LED shows CIE coordinates of (0.32, 0.33) and 45.4% optical extraction efficiency from BTPETD layer with pump leakage of 17.3%. At driving current of 30 mA, the highest luminous efficacy of 123.8 lm/W was obtained for the hybrid devices which corresponded a luminance of 1.4 × 105 cd/m2. This result shows an effective and simple way to produce white LED for solid state lighting application.
Keywords :
III-V semiconductors; aggregation; gallium compounds; indium compounds; light emitting diodes; optical fabrication; optical pumping; organic compounds; wide band gap semiconductors; InGaN; LED; aggregation-induced emission; current 30 mA; inorganic-organic molecule light-emitting diode; optical extraction efficiency; optical fabrication; organic molecule 4,7-bis[4-(1,2,2-triphenylvinyl)phenyl]benzo-2,1,3-thiadiazole; pump leakage; solid state lighting application; white light emission; Absorption; Color; Educational institutions; Light emitting diodes; Photonics; Plastics;
Conference_Titel :
Lasers and Electro-Optics Pacific Rim (CLEO-PR), 2013 Conference on
Conference_Location :
Kyoto
DOI :
10.1109/CLEOPR.2013.6600382
