標題: Enhanced Color-Conversion Efficiency of Hybrid Nanostructured-Cavities InGaN/GaN Light-Emitting Diodes Consisting of Nontoxic InP Quantum Dots
作者: Liu, Che-Yu
Chen, Tzu-Pei
Huang, Jhih-Kai
Lin, Tzu-Neng
Huang, Chia-Yen
Li, Xiu-Ling
Kuo, Hao-Chung
Shen, Ji-Lin
Chang, Chun-Yen
電子工程學系及電子研究所
光電工程學系
Department of Electronics Engineering and Institute of Electronics
Department of Photonics
關鍵字: Light emitting diodes;optoelectronic devices;nanotechnology;energy transfer;colloidal quantum dots
公開日期: 1-Sep-2017
摘要: Color-conversion efficiency enhancement of hybrid light-emitting diodes (LEDs) by cadmium-free colloidal quantum dots (QDs) and a novel selective area nanocavities structure has been demonstrated. Combining nanoimprinting and photolithography techniques, nanocavities array can be fabricated at designated locations on the LEDs. The color-conversion efficiency of selective area nanocavities LED can be enhanced by up to 13%. The significant color-conversion efficiency enhancement is attributed to resonance of InP QDs emission in nanocavities and nonradiative energy transfer from LED active layers to InPQDs, which has been investigated and characterized by finite domain time-domain simulation, electroluminescence, and time-resolved photoluminescence measurements. This hybrid nanostructured device, therefore, exhibits a great potential for the applications of multicolor lighting sources and micro-LED.
URI: http://dx.doi.org/10.1109/JSTQE.2017.2749973
http://hdl.handle.net/11536/146128
ISSN: 1077-260X
DOI: 10.1109/JSTQE.2017.2749973
期刊: IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS
Volume: 23
Appears in Collections:Articles