Enhanced Light Output Power of Near-Ultraviolet Light-Emitting Diodes with Au-Doped Graphene for Transparent and Current-Spreading Electrode

2012 ◽  
Vol 5 (11) ◽  
pp. 115101 ◽  
Author(s):  
Tae Hoon Seo ◽  
Seung Jin Chae ◽  
Bo Kyoung Kim ◽  
GangU Shin ◽  
Young Hee Lee ◽  
...  
Keyword(s):  
Ultraviolet Light ◽  
Output Power ◽  
Light Emitting Diodes ◽  
Light Output ◽  
Light Output Power ◽  
Current Spreading ◽  
Light Emitting ◽  
Near Ultraviolet ◽  
Doped Graphene ◽  
Ultraviolet Light Emitting Diodes

scholarly journals Nanostructural Effect of ZnO on Light Extraction Efficiency of Near-Ultraviolet Light-Emitting Diodes

2016 ◽  
Vol 2016 ◽  
pp. 1-6 ◽  
Author(s):  
Young Jae Park ◽  
Hyounsuk Song ◽  
Kang Bok Ko ◽  
Beo Deul Ryu ◽  
Tran Viet Cuong ◽  
...  
Keyword(s):  
Ultraviolet Light ◽  
Indium Tin Oxide ◽  
Light Emitting Diodes ◽  
Light Output ◽  
Light Extraction Efficiency ◽  
Zno Nanostructures ◽  
Light Emitting ◽  
Near Ultraviolet ◽  
Output Efficiency ◽  
Ultraviolet Light Emitting Diodes

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.

scholarly journals Interdigital Structure Enhanced the Current Spreading and Light Output Power of GaN-Based Light Emitting Diodes

IEEE Access ◽  
2020 ◽  
Vol 8 ◽  
pp. 105972-105979
Author(s):  
Jie Ding ◽  
Lingjuan Che ◽  
Xiao Chen ◽  
Tao Zhang ◽  
Yongdan Huang ◽  
...  
Keyword(s):  
Output Power ◽  
Light Emitting Diodes ◽  
Light Output ◽  
Light Output Power ◽  
Current Spreading ◽  
Light Emitting

scholarly journals Enhanced light output power of near UV light emitting diodes with graphene / indium tin oxide nanodot nodes for transparent and current spreading electrode

2011 ◽  
Vol 19 (23) ◽  
pp. 23111 ◽  
Author(s):  
Tae Hoon Seo ◽  
Kang Jea Lee ◽  
Ah Hyun Park ◽  
Chang-Hee Hong ◽  
Eun-Kyung Suh ◽  
...  
Keyword(s):  
Output Power ◽  
Tin Oxide ◽  
Indium Tin Oxide ◽  
Light Emitting Diodes ◽  
Uv Light ◽  
Light Output ◽  
Light Output Power ◽  
Current Spreading ◽  
Light Emitting

Enhanced Output Power of Near-Ultraviolet Light-Emitting Diodes by p-GaN Micro-Rods

2014 ◽  
Vol 31 (2) ◽  
pp. 027101 ◽  
Author(s):  
Dong-Sheng Wang ◽  
Ke-Xiong Zhang ◽  
Hong-Wei Liang ◽  
Shi-Wei Song ◽  
De-Chao Yang ◽  
...  
Keyword(s):  
Ultraviolet Light ◽  
Output Power ◽  
Light Emitting Diodes ◽  
Light Emitting ◽  
Near Ultraviolet ◽  
Ultraviolet Light Emitting Diodes

Ag-mesh-combined graphene for an indium-free current spreading layer in near-ultraviolet light-emitting diodes

RSC Advances ◽  
2015 ◽  
Vol 5 (92) ◽  
pp. 75325-75332 ◽  
Author(s):  
Jung-Hong Min ◽  
So-Yeong Jang ◽  
Ki-Young Kim ◽  
Sang-Bae Choi ◽  
Won-Seok Seong ◽  
...  
Keyword(s):  
Sheet Resistance ◽  
Ultraviolet Light ◽  
Light Emitting Diodes ◽  
Graphene Sheets ◽  
Current Spreading ◽  
Light Emitting ◽  
Near Ultraviolet ◽  
Free Current ◽  
Ultraviolet Light Emitting Diodes

Current spreading could be improved by using Ag-mesh-combined graphene sheets due to dramatically reducing the sheet resistance.

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