Document Detail


Enhancement of light extraction in GaN-based light-emitting diodes using rough beveled ZnO nanocone arrays.
MedLine Citation:
PMID:  22274448     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
A remarkable enhancement of light extraction efficiency in GaN-based blue light-emitting diodes (LEDs) with rough beveled ZnO nanocone arrays grown on the planar indium tin oxide (ITO) layer is reported. The light output power of LEDs with rough beveled ZnO nanocone arrays was increased by about 110% at 20 mA compared with conventional LEDs with planar ITO. The light extraction efficiency of GaN-based LEDs with rough-beveled ZnO nanocones is measured much greater than with smooth-surface hexagonal ZnO nanorods. The light-ray tracing analysis showed that ZnO nanocones with rough surfaces enlarge the light escape cone of GaN-based LEDs and have a greater advantage for extracting light compared with ZnO nanorods.
Authors:
Zhengmao Yin; Xiaoyan Liu; Yongzhong Wu; Xiaopeng Hao; Xiangang Xu
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Optics express     Volume:  20     ISSN:  1094-4087     ISO Abbreviation:  Opt Express     Publication Date:  2012 Jan 
Date Detail:
Created Date:  2012-01-25     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101137103     Medline TA:  Opt Express     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1013-21     Citation Subset:  IM    
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