Ultraviolet electroluminescence from ordered ZnO nanorod array/p-GaN light emitting diodes

被引：59

作者：

Dong, J. J. ^{[1
]}

Zhang, X. W. ^{[1
]}

Yin, Z. G. ^{[1
]}

Wang, J. X. ^{[2
]}

Zhang, S. G. ^{[1
]}

Si, F. T. ^{[1
]}

Gao, H. L. ^{[1
]}

Liu, X. ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Semicond, Key Lab Semicond Mat Sci, Beijing 100083, Peoples R China

[2] Chinese Acad Sci, Inst Semicond, Semicond Lighting Technol R&D Ctr, Beijing 100083, Peoples R China

来源：

APPLIED PHYSICS LETTERS | 2012年 / 100卷 / 17期

基金：

中国国家自然科学基金;

关键词：

P-GAN; NANOWIRE ARRAYS; FABRICATION; GROWTH; FILM;

D O I：

10.1063/1.4706259

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

The highly ordered and aligned ZnO nanorod arrays were grown on p-GaN substrates via a facile hydrothermal process assisted by the inverted self-assembled monolayer template, from which the ZnO nanorod/p-GaN heterojunction light emitting diodes (LEDs) were fabricated. The ZnO nanorod-based LEDs exhibit a stronger ultraviolet emission of 390 nm than the ZnO film-based counterpart, which is attributed to the low density of interfacial defects, the improved light extraction efficiency, and carrier injection efficiency through the nano-sized junctions. Furthermore, the LED with the 300 nm ZnO nanorods has a better electroluminescence performance compared with the device with the 500 nm nanorods. (C) 2012 American Institute of Physics. [http://dx.doi.org/10.1063/1.4706259]

引用

页数：4

共 24 条

[1] Observation of 430 nm electroluminescence from ZnO/GaN heterojunction light-emitting diodes [J].

Alivov, YI ;

Van Nostrand, JE ;

Look, DC ;

Chukichev, MV ;

Ataev, BM .

APPLIED PHYSICS LETTERS, 2003, 83 (14) :2943-2945

[2] High-Quality ZnO Nanowire Arrays Directly Fabricated from Photoresists [J].

Cheng, Chun ;

Lei, Ming ;

Feng, Lin ;

Wong, Tai Lun ;

Ho, K. M. ;

Fung, Kwok Kwong ;

Loy, Michael M. T. ;

Yu, Dapeng ;

Wang, Ning .

ACS NANO, 2009, 3 (01) :53-58

[3] Integration of ZnO microcrystals with tailored dimensions forming light emitting diodes and UV photovoltaic cells [J].

Cole, Jesse J. ;

Wang, Xinyu ;

Knuesel, Robert J. ;

Jacobs, Heiko O. .

NANO LETTERS, 2008, 8 (05) :1477-1481

[4] Controllable Growth of Highly Ordered ZnO Nanorod Arrays via Inverted Self-Assembled Monolayer Template [J].

Dong, J. J. ;

Zhang, X. W. ;

Yin, Z. G. ;

Zhang, S. G. ;

Wang, J. X. ;

Tan, H. R. ;

Gao, Y. ;

Si, F. T. ;

Gao, H. L. .

ACS APPLIED MATERIALS & INTERFACES, 2011, 3 (11) :4388-4395

[5] Electroluminescence from ZnO nanowires in n-ZnO film/ZnO nanowire array/p-GaN film heterojunction light-emitting diodes [J].

Jeong, Min-Chang ;

Oh, Byeong-Yun ;

Ham, Moon-Ho ;

Myoung, Jae-Min .

APPLIED PHYSICS LETTERS, 2006, 88 (20)

[6] ZnO-Nanowire-Inserted GaN/ZnO heterojunction light-emitting diodes [J].

Jeong, Min-Chang ;

Oh, Byeong-Yun ;

Ham, Moon-Ho ;

Lee, Sang-Won ;

Myoung, Jae-Min .

SMALL, 2007, 3 (04) :568-572

[7] Polymer-Templated Hydrothermal Growth of Vertically Aligned Single-Crystal ZnO Nanorods and Morphological Transformations Using Structural Polarity [J].

Kim, Ki Seok ;

Jeong, Hyun ;

Jeong, Mun Seok ;

Jung, Gun Young .

ADVANCED FUNCTIONAL MATERIALS, 2010, 20 (18) :3055-3063

[8] Enhancement of Light Extraction Through the Wave-Guiding Effect of ZnO Sub-microrods in InGaN Blue Light-Emitting Diodes [J].

Kim, Ki Seok ;

Kim, Sang-Mook ;

Jeong, Hyun ;

Jeong, Mun Seok ;

Jung, Gun Young .

ADVANCED FUNCTIONAL MATERIALS, 2010, 20 (07) :1076-1082

[9] Wet Chemical Approaches to Patterned Arrays of Well-Aligned ZnO Nanopillars Assisted by Monolayer Colloidal Crystals [J].

Li, Cheng ;

Hong, Guosong ;

Wang, Pengwei ;

Yu, Dapeng ;

Qi, Limin .

CHEMISTRY OF MATERIALS, 2009, 21 (05) :891-897

[10] Periodic ZnO nanorod arrays defined by polystyrene microsphere self-assembled monolayers [J].

Liu, D. F. ;

Xiang, Y. J. ;

Wu, X. C. ;

Zhang, Z. X. ;

Liu, L. F. ;

Song, L. ;

Zhao, X. W. ;

Luo, S. D. ;

Ma, W. J. ;

Shen, J. ;

Zhou, W. Y. ;

Wang, G. ;

Wang, C. Y. ;

Xie, S. S. .

NANO LETTERS, 2006, 6 (10) :2375-2378

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