Enhancement of the near-band-edge photoluminescence of ZnO nanowires: Important role of hydrogen incorporation versus plasmon resonances

被引：42

作者：

Dev, A. ^{[1
]}

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

Sartor, J. ^{[2
]}

Kalt, H. ^{[2
]}

Gutowski, J. ^{[1
]}

Voss, T. ^{[1
]}

机构：

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

[2] Karlsruhe Inst Technol, Inst Appl Phys, D-76131 Karlsruhe, Germany

来源：

APPLIED PHYSICS LETTERS | 2011年 / 98卷 / 13期

关键词：

NANOPARTICLES;

D O I：

10.1063/1.3569951

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

We investigated the photoluminescence properties of ZnO nanowires coated with Au, Ag, and Pt nanoparticles deposited by dc sputtering. A strong enhancement of the near-band-edge emission was observed in all metal-coated samples but also if the samples were treated with Ar plasma without any nanoparticle deposition. High-resolution photoluminescence spectroscopy revealed hydrogen-donor-bound-exciton emission in all samples indicating unintentional hydrogen incorporation. A shorter decay time of the near-band-edge emission was observed in all cases. The results indicate that unintentional hydrogen incorporation plays a dominant role when metal deposition is performed by sputtering. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3569951]

引用

页数：3

共 16 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 plasmon enhanced band edge luminescence of ZnO nanorods by capping Au nanoparticles [J].

Cheng, C. W. ;

Sie, E. J. ;

Liu, B. ;

Huan, C. H. A. ;

Sum, T. C. ;

Sun, H. D. ;

Fan, H. J. .

APPLIED PHYSICS LETTERS, 2010, 96 (07)

[3] 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)

[4] Stable enhancement of near-band-edge emission of ZnO nanowires by hydrogen incorporation [J].

Dev, A. ;

Niepelt, R. ;

Richters, J. P. ;

Ronning, C. ;

Voss, T. .

NANOTECHNOLOGY, 2010, 21 (06)

[5] Broadening of near-band-gap photoluminescence in n-GaN films [J].

Iliopoulos, E ;

Doppalapudi, D ;

Ng, HM ;

Moustakas, TD .

APPLIED PHYSICS LETTERS, 1998, 73 (03) :375-377

[6] Low-resistance and nonalloyed ohmic contacts to plasma treated ZnO [J].

Lee, JM ;

Kim, KK ;

Park, SJ ;

Choi, WK .

APPLIED PHYSICS LETTERS, 2001, 78 (24) :3842-3844

[7] Giant enhancement of bandgap emission of ZnO nanorods by platinum nanoparticles [J].

Lin, Jian Ming ;

Lin, Hsia Yu ;

Cheng, Chung Liang ;

Chen, Yang Fang .

NANOTECHNOLOGY, 2006, 17 (17) :4391-4394

[8] Size and temperature dependence of the plasmon absorption of colloidal gold nanoparticles [J].

Link, S ;

El-Sayed, MA .

JOURNAL OF PHYSICAL CHEMISTRY B, 1999, 103 (21) :4212-4217

[9] Giant enhancement of top emission from ZnO thin film by nanopatterned Pt [J].

Liu, K. W. ;

Tang, Y. D. ;

Cong, C. X. ;

Sum, T. C. ;

Huan, A. C. H. ;

Shen, Z. X. ;

Wang, Li ;

Jiang, F. Y. ;

Sun, X. W. ;

Sun, H. D. .

APPLIED PHYSICS LETTERS, 2009, 94 (15)

[10] Ionized and neutral donor-bound excitons in ZnO [J].

Meyer, B. K. ;

Sann, J. ;

Lautenschlager, S. ;

Wagner, M. R. ;

Hoffmann, A. .

PHYSICAL REVIEW B, 2007, 76 (18)

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