Stable enhancement of near-band-edge emission of ZnO nanowires by hydrogen incorporation

被引：66

作者：

Dev, A. ^{[1
]}

Niepelt, R. ^{[2
]}

Richters, J. P. ^{[1
]}

Ronning, C. ^{[2
]}

Voss, T. ^{[1
]}

机构：

[1] Univ Bremen, Inst Solid State Phys, D-28359 Bremen, Germany

[2] Univ Jena, Inst Solid State Phys, D-07743 Jena, Germany

来源：

NANOTECHNOLOGY | 2010年 / 21卷 / 06期

关键词：

PHOTOLUMINESCENCE; DONOR;

D O I：

10.1088/0957-4484/21/6/065709

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

We report on the photoluminescence properties of ZnO nanowires treated with a mild Ar plasma. The nanowires exhibited stable and strong enhancement of the near-band-edge emission and quenching of the deep level emission. The low temperature PL revealed a strong hydrogen donor-bound-exciton line in the plasma-treated samples indicating unintentional incorporation of hydrogen during the plasma treatment. To confirm the results, hydrogen was implanted into the ZnO nanowires with a low ion energy of 600 eV and different fluences. The observed result can be related to the passivation of deep centers by hydrogen. The absolute photoluminescence intensity measured by an integrating sphere showed stable and strong UV emission from the treated samples even after several weeks.

引用

页数：5

共 34 条

[1] Catalyst-nanostructure interaction in the growth of 1-D ZnO nanostructures [J].

Borchers, C ;

Müller, S ;

Stichtenoth, D ;

Schwen, D ;

Ronning, C .

JOURNAL OF PHYSICAL CHEMISTRY B, 2006, 110 (04) :1656-1660

[2] SURFACE EFFECTS ON LOW-ENERGY CATHODOLUMINESCENCE OF ZINC-OXIDE [J].

BYLANDER, EG .

JOURNAL OF APPLIED PHYSICS, 1978, 49 (03) :1188-1195

[3] Tailoring the photoluminescence of ZnO nanowires using Au nanoparticles [J].

Chen, T. ;

Xing, G. Z. ;

Zhang, Z. ;

Chen, H. Y. ;

Wu, T. .

NANOTECHNOLOGY, 2008, 19 (43)

[4] Enhancement of ZnO light emission via coupling with localized surface plasmon of Ag island film [J].

Cheng, Peihong ;

Li, Dongsheng ;

Yuan, Zhizhong ;

Chen, Peiliang ;

Yang, Deren .

APPLIED PHYSICS LETTERS, 2008, 92 (04)

[5] BACKSCATTERING OF KEV MOLECULAR-HYDROGEN IONS FROM AU SURFACES [J].

ECKSTEIN, W ;

VERBEEK, H ;

DATZ, S .

APPLIED PHYSICS LETTERS, 1975, 27 (10) :527-528

[6] Hydrogen incorporation and diffusivity in plasma-exposed bulk ZnO [J].

Ip, K ;

Overberg, ME ;

Heo, YW ;

Norton, DP ;

Pearton, SJ ;

Stutz, CE ;

Luo, B ;

Ren, F ;

Look, DC ;

Zavada, JM .

APPLIED PHYSICS LETTERS, 2003, 82 (03) :385-387

[7]

JUNHYEOK B, 2008, APPL PHYS LETT, V92

[8] ZnO: Material, physics and applications [J].

Klingshirn, C. .

CHEMPHYSCHEM, 2007, 8 (06) :782-803

[9]

Lavrov EV, 2002, PHYS REV B, V66, DOI 10.1103/PhysRevB.66.165205

[10] Effect of surface states on electron transport in individual ZnO nanowires [J].

Liao, Zhi-Min ;

Liu, Kai-Jian ;

Zhang, Jing-Min ;

Xu, Jun ;

Yu, Da-Peng .

PHYSICS LETTERS A, 2007, 367 (03) :207-210

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