Enhanced UV photoresponse in nitrogen plasma ZnO nanotubes

被引：32

作者：

Chantarat, N. ^{[1
]}

Chen, Yu-Wei ^{[1
]}

Chen, San-Yuan ^{[1
]}

Lin, Chin-Ching ^{[2
]}

机构：

[1] Natl Chiao Tung Univ, Dept Mat Sci & Engn, Hsinchu, Taiwan

[2] Ind Technol Res Inst, Mat Res Labs, Chutung, Taiwan

来源：

NANOTECHNOLOGY | 2009年 / 20卷 / 39期

关键词：

FILMS; PHOTODETECTORS; NANOWIRES;

D O I：

10.1088/0957-4484/20/39/395201

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The photoresponse behavior of one-dimensional ZnO nanowires (NWs) and nanotubes (NTs) grown on ITO-coated glass substrates via a wet-chemical route was investigated. The photoluminescence spectra exhibited a decrease in the deep-level intensity, indicating that the oxygen defects and impurities are occupied by the presence of N ions in the ZnO NT matrix after a nitrogen plasma treatment. I-V tests demonstrate an enhanced dark current (4.83 x 10(-7) A) after an extended plasma treatment of up to 900s for ZnO NTs compared to that (0.571 x 10(-7) A) of NWs. Furthermore, the ZnO NTs show the highest reliable photoresponse, 20 times that of NWs under UV irradiation (325 nm) in air at room temperature. It is believed that nitrogen plasma ZnO nanotubes can potentially be useful in the designs of 1D ZnO-based solar cells and optoelectronic devices.

引用

页数：5

共 20 条

[1] Origin of the slow photoresponse in an individual sol-gel synthesized ZnO nanowire [J].

Ahn, Seung-Eon ;

Ji, Hyun Jin ;

Kim, Kanghyun ;

Kim, Gyu Tae ;

Bae, Chang Hyun ;

Park, Seung Min ;

Kim, Yong-Kwan ;

Ha, Jeong Sook .

APPLIED PHYSICS LETTERS, 2007, 90 (15)

[2] Wide-field Fourier transform spectral imaging [J].

Atlan, Michael ;

Gross, Michel .

APPLIED PHYSICS LETTERS, 2007, 91 (11)

[3] Template-directed synthesis of oxide nanotubes: Fabrication, characterization, and applications [J].

Bae, Changdeuck ;

Yoo, Hyunjun ;

Kim, Sihyeong ;

Lee, Kyungeun ;

Kim, Jiyoung ;

Sung, Myung A. ;

Shin, Hyunjung .

CHEMISTRY OF MATERIALS, 2008, 20 (03) :756-767

[4] Single-walled carbon nanotube scaffolds for dye-sensitized solar cells [J].

Brown, Patrick ;

Takechi, Kensuke ;

Kamat, Prashant V. .

JOURNAL OF PHYSICAL CHEMISTRY C, 2008, 112 (12) :4776-4782

[5] Electrical and ultraviolet photoresponse properties of quasialigned ZnO nanowires/p-Si heterojunction [J].

Ghosh, R. ;

Basak, D. .

APPLIED PHYSICS LETTERS, 2007, 90 (24)

[6] Synthesis and optical properties of white-light-emitting alumina/ZnO nanotubes [J].

Hsiao, Chi-Sheng ;

Chen, San-Yuan ;

Kuo, Wan-Lin ;

Lin, Chin-Ching ;

Cheng, Syh-Yuh .

NANOTECHNOLOGY, 2008, 19 (40)

[7] Ultraviolet photodetectors with low temperature synthesized vertical ZnO nanowires [J].

Hsu, CL ;

Chang, SJ ;

Lin, YR ;

Li, PC ;

Lin, TS ;

Tsai, SY ;

Lu, TH ;

Chen, IC .

CHEMICAL PHYSICS LETTERS, 2005, 416 (1-3) :75-78

[8] Nanorod-based dye-sensitized solar cells with improved charge collection efficiency [J].

Kang, Soon Hyung ;

Choi, Sang-Hyun ;

Kang, Moon-Sung ;

Kim, Jae-Yup ;

Kim, Hyun-Sik ;

Hyeon, Taeghwan ;

Sung, Yung-Eun .

ADVANCED MATERIALS, 2008, 20 (01) :54-+

[9] Photocurrent in ZnO nanowires grown from Au electrodes [J].

Keem, K ;

Kim, H ;

Kim, GT ;

Lee, JS ;

Min, B ;

Cho, K ;

Sung, MY ;

Kim, S .

APPLIED PHYSICS LETTERS, 2004, 84 (22) :4376-4378

[10] Aging effect on the optoelectronic properties of a single ZnO nanowire [J].

Keem, Kihyun ;

Kang, Jeongmin ;

Jeong, Dong-Young ;

Min, Byungdon ;

Cho, Kyoungah ;

Kim, Hyunsuk ;

Kim, Sangsig ;

Kim, Young Keun .

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS, 2007, 46 (7A) :4355-4358

← 1 2 →