Nanostructural Effect of ZnO on Light Extraction Efficiency of Near-Ultraviolet Light-Emitting Diodes
Joint Authors
Cuong, Tran V.
Park, Young Jae
Song, Hyounsuk
Ko, Kang Bok
Ryu, Beo Deul
Hong, Chang-Hee
Source
Issue
Vol. 2016, Issue 2016 (31 Dec. 2016), pp.1-6, 6 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2016-03-16
Country of Publication
Egypt
No. of Pages
6
Main Subjects
Abstract EN
The effect of ZnO nanostructures on the light output power of 375 nm near-ultraviolet light-emitting diodes (NUV-LEDs) was investigated by comparing one-dimensional (1D) nanorods (NR-ZnO) with two-dimensional (2D) nanosheets (NS-ZnO).
ZnO nanostructures were grown on a planar indium tin oxide (ITO) by solution based method at low temperature of 90°C without degradation of the forward voltage.
At an injection current of 100 mA, the light output efficiency of NUV-LED with NR-ZnO was enhanced by around 30% compared to the conventional NUV-LEDs without ZnO nanostructures.
This improvement is due to the formation of a surface texturing, resulting in a larger escape cone and a multiple scattering for the photons in the NUV-LED, whereas the light output efficiency of NUV-LED with NS-ZnO was lower than that of the conventional NUV-LEDs due to the internal reflection and light absorption in the defective sites of NS-ZnO.
American Psychological Association (APA)
Park, Young Jae& Song, Hyounsuk& Ko, Kang Bok& Ryu, Beo Deul& Cuong, Tran V.& Hong, Chang-Hee. 2016. Nanostructural Effect of ZnO on Light Extraction Efficiency of Near-Ultraviolet Light-Emitting Diodes. Journal of Nanomaterials،Vol. 2016, no. 2016, pp.1-6.
https://search.emarefa.net/detail/BIM-1109389
Modern Language Association (MLA)
Park, Young Jae…[et al.]. Nanostructural Effect of ZnO on Light Extraction Efficiency of Near-Ultraviolet Light-Emitting Diodes. Journal of Nanomaterials No. 2016 (2016), pp.1-6.
https://search.emarefa.net/detail/BIM-1109389
American Medical Association (AMA)
Park, Young Jae& Song, Hyounsuk& Ko, Kang Bok& Ryu, Beo Deul& Cuong, Tran V.& Hong, Chang-Hee. Nanostructural Effect of ZnO on Light Extraction Efficiency of Near-Ultraviolet Light-Emitting Diodes. Journal of Nanomaterials. 2016. Vol. 2016, no. 2016, pp.1-6.
https://search.emarefa.net/detail/BIM-1109389
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1109389