Effect of gas concentration on structural and optical characteristics of ZnO nanorods

被引：7

作者：

Fang, Te-Hua ^{[2
]}

Chang, Win-Jin ^{[1
]}

Water, Walter ^{[3
]}

Lee, Ching-Chin ^{[3
]}

机构：

[1] Kun Shan Univ, Dept Mech Engn, Tainan 710, Taiwan

[2] Natl Kaohsiung Univ Appl Sci, Dept Mech Engn, Kaohsiung 807, Taiwan

[3] Natl Formosa Univ, Inst Electroopt & Mat Sci, Yunlin 632, Taiwan

来源：

PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES | 2010年 / 42卷 / 08期

关键词：

ZnO; Vapor-liquid-solid; Photoluminescence; Raman; Nanogenerator; SUBSTRATE-TEMPERATURE; GROWTH; FABRICATION; NANOWIRES; FILMS;

D O I：

10.1016/j.physe.2010.04.010

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

ZnO nanorods have been synthesized using vapor-liquid-solid (VLS) growth technique under different flow ratios of Ar/O-2. The effects of different gas concentrations on the crystal structure, surface morphology, and optical properties of ZnO nanorods are investigated by using X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive X-ray spectroscopy (EDS), photoluminescence (PL), and Raman spectra measurements. The PL measurements exhibit two peaks, one around 383 nm and the other around 502 nm, which correspond to ultraviolet (UV) and green emission. With decrease in flow ratio of Ar/O-2, the blue-shift of UV PL spectra is observed in the nanorods. In addition, a nanogenerator with ZnO nanorods is fabricated. The output current is generated in the device and showed the Schottky-like current-voltage characteristic. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：2139 / 2142

页数：4

共 12 条

[1] Synthesis and characterization of ZnO nanowires and their integration into dye-sensitized solar cells [J].

Baxter, J. B. ;

Walker, A. M. ;

van Ommering, K. ;

Aydil, E. S. .

NANOTECHNOLOGY, 2006, 17 (11) :S304-S312

[2] Effect of indium dopant on surface and mechanical characteristics of ZnO : In nanostructured films [J].

Fang, Te-Hua ;

Kang, Shao-Hui .

JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2008, 41 (24)

[3] The role of reactants and droplet interfaces on nucleation and growth of ZnO nanorods synthesized by vapor-liquid-solid (VLS) mechanism [J].

Hejazi, S. R. ;

Hosseini, H. R. Madaah ;

Ghamsari, M. Sasani .

JOURNAL OF ALLOYS AND COMPOUNDS, 2008, 455 (1-2) :353-357

[4] Fabrication and electrical characteristics of dual-gate ZnO nanorod metal-oxide semiconductor field-effect transistors [J].

Kim, Hyeong-Jin ;

Lee, Chul-Ho ;

Kim, Dong-Wook ;

Yi, Gyu-Chul .

NANOTECHNOLOGY, 2006, 17 (11) :S327-S331

[5] Fabrication of ZnO thin film diode using laser annealing [J].

Lee, SY ;

Shim, ES ;

Kang, HS ;

Pang, SS ;

Kang, JS .

THIN SOLID FILMS, 2005, 473 (01) :31-34

[6] The effects of r.f. power and substrate temperature on the properties of ZnO films [J].

Lin, SS ;

Huang, JL ;

Lii, DF .

SURFACE & COATINGS TECHNOLOGY, 2004, 176 (02) :173-181

[7] Growth and characterization of single crystal ZnO thin films using inductively coupled plasma metal organic chemical vapor deposition [J].

Park, J. -H. ;

Jang, S. -J. ;

Kim, S. -S. ;

Lee, B. -T. .

APPLIED PHYSICS LETTERS, 2006, 89 (12)

[8] Substrate temperature dependence of growth mode, microstructure and optical properties of highly oriented zinc oxide films deposited by reactive sputtering [J].

Singh, Sukhvinder ;

Ganguli, Tapas ;

Kumar, Ravi ;

Srinivasa, R. S. ;

Major, S. S. .

THIN SOLID FILMS, 2008, 517 (02) :661-669

[9] Direct-current nanogenerator driven by ultrasonic waves [J].

Wang, Xudong ;

Song, Jinhui ;

Liu, Jin ;

Wang, Zhong Lin .

SCIENCE, 2007, 316 (5821) :102-105

[10] Photoluminescence and Raman analysis of ZnO nanowires deposited on Si(100) via vapor-liquid-solid process [J].

Yang, Li-li ;

Yang, Jing-hai ;

Wang, Dan-dan ;

Zhang, Yong-jun ;

Wang, Ya-xin ;

Liu, Hui-lian ;

Fan, Hou-gang ;

Lang, Ji-hui .

PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES, 2008, 40 (04) :920-923

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