Effects of Indium-Tin Oxide Film Morphologies on Light-Output Characteristics of GaN-Based Light-Emitting Diodes

被引:3
作者
Shen, Yan [1 ,2 ]
Xu, Xiangang [1 ,2 ]
Liu, Qing [2 ]
Zuo, Zhiyuan [2 ]
Liu, Huan [2 ]
Zhang, Muqing [2 ]
Hu, Xiaobo [1 ,2 ]
机构
[1] Shandong Univ, State Key Laboratoty Crystal Mat, Jinan 250100, Peoples R China
[2] Shandong Huaguang Optoelect Co Ltd, Jinan 250101, Peoples R China
关键词
Nanorod; Cellular Particle; Nanotree Cluster; Grain Cluster; Indium-Tin Oxide Film; Light-Emitting Diodes; EXTRACTION; EFFICIENCY;
D O I
10.1166/jno.2014.1624
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
ITO film surfaces need to be optimized since more optical power is extracted through roughened surfaces. In this study, ITO films with different morphologies were prepared under different evaporation conditions: by adjusting the oxygen flow rate during evaporation, ITO nanorods, cellular particles, nanotree clusters, and grain clusters were obtained. Surface morphologies and roughness were characterized by scanning electron microscopy, atomic force microscopy and confocal scanning laser microscopy. The current voltage curves and light-output power of the LEDs under different injection currents were measured.
引用
收藏
页码:549 / 553
页数:5
相关论文
共 19 条
[1]  
[Anonymous], 2012, ARCH REV
[2]   Characterization of InGaN-based nanorod light emitting diodes with different indium compositions [J].
Bai, J. ;
Wang, Q. ;
Wang, T. .
JOURNAL OF APPLIED PHYSICS, 2012, 111 (11)
[3]   Oblique electron-beam evaporation of distinctive indium-tin-oxide nanorods for enhanced light extraction from InGaN/GaN light emitting diodes [J].
Chiu, C. H. ;
Yu, Peichen ;
Chang, C. H. ;
Yang, C. S. ;
Hsu, M. H. ;
Kuo, H. C. ;
Tsai, M. A. .
OPTICS EXPRESS, 2009, 17 (23) :21250-21256
[4]   Increase in the extraction efficiency of GaN-based light-emitting diodes via surface roughening [J].
Fujii, T ;
Gao, Y ;
Sharma, R ;
Hu, EL ;
DenBaars, SP ;
Nakamura, S .
APPLIED PHYSICS LETTERS, 2004, 84 (06) :855-857
[5]   Indium Tin Oxide Nanorod Electrodes for Polymer Photovoltaics [J].
Fung, Man Kin ;
Sun, Ye Chuan ;
Ng, Annie ;
Ng, Alan Man Ching ;
Djurisic, Aleksandra B. ;
Chan, Hung Tat ;
Chan, Wai Kin .
ACS APPLIED MATERIALS & INTERFACES, 2011, 3 (02) :522-527
[6]   Characterization of InGaN/GaN light-emitting diodes with micro-hole arrayed indium-tin-oxide layer [J].
Hu, Yeu-Jent ;
Wang, Jen-Cheng ;
Nee, Tzer-En .
THIN SOLID FILMS, 2011, 519 (18) :6069-6072
[7]   The effect of solvent on the etching of ITO electrode [J].
Huang, CJ ;
Su, YK ;
Wu, SL .
MATERIALS CHEMISTRY AND PHYSICS, 2004, 84 (01) :146-150
[8]   Improved light-output and electrical performance of InGaN-based, light-emitting diode by microroughening of the p-GaN surface [J].
Huh, C ;
Lee, KS ;
Kang, EJ ;
Park, SJ .
JOURNAL OF APPLIED PHYSICS, 2003, 93 (11) :9383-9385
[9]   InGaN/GaN quantum well interconnected microdisk light emitting diodes [J].
Jin, SX ;
Li, J ;
Lin, JY ;
Jiang, HX .
APPLIED PHYSICS LETTERS, 2000, 77 (20) :3236-3238
[10]   Enhancement of light output power in GaN-based light-emitting diodes using indium tin oxide films with nanoporous structures [J].
Kang, Ji Hye ;
Ryu, Jae Hyoung ;
Kim, Hyun Kyu ;
Kim, Hee Yun ;
Han, Nam ;
Lee, Mi So ;
Park, Young Jae ;
Uthirakumar, Periyayya ;
Lysak, Volodymyr V. ;
Hong, Chang-Hee .
THIN SOLID FILMS, 2011, 520 (01) :437-441