Structural and Optical Properties of Glancing Angle Deposited TiO2 Nanowires Array

被引:13
作者
Chinnamuthu, P. [1 ]
Mondal, A. [1 ]
Singh, N. K. [1 ]
Dhar, J. C. [1 ]
Das, S. K. [2 ]
Chattopadhyay, K. K. [3 ]
机构
[1] Natl Inst Technol Agartala, Dept Elect & Commun Engn, Jirania 799055, Tripura West, India
[2] Univ Calcutta, Dept Elect Sci, Kolkata 700009, India
[3] Jadavpur Univ, Dept Phys, Kolkata 700032, India
关键词
GLAD; TiO2; Nanowire; FE-SEM; HR-TEM; Photoluminescence; Optical Absorption; SENSITIZED SOLAR-CELLS; GROWTH; FILMS; TRANSITION; NANORODS; OXIDES; ZNO;
D O I
10.1166/jnn.2012.6455
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
TiO2 nanowires (NWs) have been synthesized by glancing angle deposition technique using e-beam evaporator. The average length 490 nm and diameter 80 nm of NWs were examined by field emission-scanning electron microscopy. Transmission electron microscopy emphasized that the NWs were widely dispersed at the top. X-ray diffraction has been carried out on the TiO2 thin film (TF) and NW array. A small blue shift of 0.03 eV was observed in Photoluminescence (PL) main band emission for TiO2 NW as compared to TiO2 TF. The high temperature annealing at 980 degrees C partially removed the oxygen vacancy from the sample, which was investigated by PL and optical absorption measurements.
引用
收藏
页码:6445 / 6448
页数:4
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