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

[11] Shallow donors and acceptors in ZnO [J].

Meyer, BK ;

Sann, J ;

Hofmann, DM ;

Neumann, C ;

Zenner, A .

SEMICONDUCTOR SCIENCE AND TECHNOLOGY, 2005, 20 (04) :S62-S66

[12] Bound exciton and donor-acceptor pair recombinations in ZnO [J].

Meyer, BK ;

Alves, H ;

Hofmann, DM ;

Kriegseis, W ;

Forster, D ;

Bertram, F ;

Christen, J ;

Hoffmann, A ;

Strassburg, M ;

Dworzak, M ;

Haboeck, U ;

Rodina, AV .

PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS, 2004, 241 (02) :231-260

[13] Surface-plasmon-enhanced light emitters based on InGaN quantum wells [J].

Okamoto, K ;

Niki, I ;

Shvartser, A ;

Narukawa, Y ;

Mukai, T ;

Scherer, A .

NATURE MATERIALS, 2004, 3 (09) :601-605

[14] Influence of metallic coatings on the photoluminescence properties of ZnO nanowires [J].

Richters, J. -P. ;

Dev, A. ;

Mueller, S. ;

Niepelt, R. ;

Borschel, C. ;

Ronning, C. ;

Voss, T. .

PHYSICA STATUS SOLIDI-RAPID RESEARCH LETTERS, 2009, 3 (05) :166-168

[15] Remote hydrogen plasma doping of single crystal ZnO [J].

Strzhemechny, YM ;

Mosbacker, HL ;

Look, DC ;

Reynolds, DC ;

Litton, CW ;

Garces, NY ;

Giles, NC ;

Halliburton, LE ;

Niki, S ;

Brillson, LJ .

APPLIED PHYSICS LETTERS, 2004, 84 (14) :2545-2547

[16] Surface plasmon enhanced ultraviolet emission from ZnO films deposited on Ag/Si(001) by magnetron sputtering [J].

You, J. B. ;

Zhang, X. W. ;

Fan, Y. M. ;

Qu, S. ;

Chen, N. F. .

APPLIED PHYSICS LETTERS, 2007, 91 (23)

← 1 2 →