Enhanced opto-electrical properties of graphene electrode InGaN/GaN LEDs with a NiOx inter-layer

作者: Caichuan Wu , Fengyuan Liu , Bin Liu , Zhe Zhuang , Jiangping Dai

DOI: 10.1016/J.SSE.2015.03.005

关键词:

摘要: We report the fabrication of gallium nitride (GaN)-based light-emitting diode (LED) with uniform and monolayer graphene as transparent current spreading layer. Two-dimensional successfully provides efficient hole injection into active layers LEDs for light emission. To further reduce ohmic contact resistance between p-GaN film, ultrathin NiOx inter-layer is introduced in device, improving its electrical optical performance.

参考文章(10)
Yiyun Zhang, Xiao Li, Liancheng Wang, Xiaoyan Yi, Dehai Wu, Hongwei Zhu, Guohong Wang, Enhanced light emission of GaN-based diodes with a NiOx/graphene hybrid electrode Nanoscale. ,vol. 4, pp. 5852- 5855 ,(2012) , 10.1039/C2NR31986A
Ching-Ting Lee, Yow-Jon Lin, Tsung-Hsin Lee, Mechanism investigation of NiOx in Au/Ni/p-type GaN ohmic contacts annealed in air Journal of Electronic Materials. ,vol. 32, pp. 341- 345 ,(2003) , 10.1007/S11664-003-0155-6
Byung Jin Cho, Eun-Kyung Suh, Chang-Hee Hong, S. Chandramohan, Ji Hye Kang, Beo Deul Ryu, Jong Han Yang, Seongjun Kim, Hynsoo Kim, Jong Bae Park, Taek Yong Kim, Impact of interlayer processing conditions on the performance of GaN light-emitting diode with specific NiOx/graphene electrode. ACS Applied Materials & Interfaces. ,vol. 5, pp. 958- 964 ,(2013) , 10.1021/AM3026079
E. Kuokstis, J. W. Yang, G. Simin, M. Asif Khan, R. Gaska, M. S. Shur, Two mechanisms of blueshift of edge emission in InGaN-based epilayers and multiple quantum wells Applied Physics Letters. ,vol. 80, pp. 977- 979 ,(2002) , 10.1063/1.1433164
L.M. Malard, M.A. Pimenta, G. Dresselhaus, M.S. Dresselhaus, Raman spectroscopy in graphene Physics Reports. ,vol. 473, pp. 51- 87 ,(2009) , 10.1016/J.PHYSREP.2009.02.003
Weilu Gao, Jie Shu, Ciyuan Qiu, Qianfan Xu, Excitation of Plasmonic Waves in Graphene by Guided-Mode Resonances ACS Nano. ,vol. 6, pp. 7806- 7813 ,(2012) , 10.1021/NN301888E
Jung Min Lee, Jae Woong Choung, Jaeseok Yi, Dong Hyun Lee, Monica Samal, Dong Kee Yi, Chul-Ho Lee, Gyu-Chul Yi, Ungyu Paik, John A. Rogers, Won Il Park, Vertical pillar-superlattice array and graphene hybrid light emitting diodes Nano Letters. ,vol. 10, pp. 2783- 2788 ,(2010) , 10.1021/NL100648Y
S Chandramohan, Kang Bok Ko, Jong Han Yang, Beo Deul Ryu, YS Katharria, Taek Yong Kim, Byung Jin Cho, Chang-Hee Hong, None, Performance evaluation of GaN light-emitting diodes using transferred graphene as current spreading layer Journal of Applied Physics. ,vol. 115, pp. 054503- ,(2014) , 10.1063/1.4863640
Doo-Hyeb Youn, Young-Jun Yu, HongKyw Choi, Suck-Hwan Kim, Sung-Yool Choi, Choon-Gi Choi, Graphene transparent electrode for enhanced optical power and thermal stability in GaN light-emitting diodes Nanotechnology. ,vol. 24, pp. 075202- ,(2013) , 10.1088/0957-4484/24/7/075202
Gunho Jo, Minhyeok Choe, Chu-Young Cho, Jin Ho Kim, Woojin Park, Sangchul Lee, Woong-Ki Hong, Tae-Wook Kim, Seong-Ju Park, Byung Hee Hong, Yung Ho Kahng, Takhee Lee, Large-scale patterned multi-layer graphene films as transparent conducting electrodes for GaN light-emitting diodes. Nanotechnology. ,vol. 21, pp. 175201- ,(2010) , 10.1088/0957-4484/21/17/175201