TY - JOUR
T1 - The vibration and photoluminescence properties of one-dimensional ZnO nanowires
AU - Lu, Hao Ying
AU - Chu, Sheng Yuan
AU - Cheng, Sheng Hsien
N1 - Funding Information:
The National Science Council of Republic of China supported this research, under the Grant NSC93-2216-E-006-035. The authors also acknowledge the supports from Center for Micro–Nano Technology, National Cheng-Kung University.
PY - 2005/2/1
Y1 - 2005/2/1
N2 - Under argon- and oxygen-mixed atmosphere, the vapor-liquid-solid method was introduced to fabricate the ZnO nanowires at 700-1000 °C. As grown on Au-coated Si substrate, the single-crystalline ZnO one-dimensional structure was obtained. From XRD patterns, the growth orientation of nanowires was 〈0 0 2〉 along the c-axis. Two emission bands were observed in PL spectra, one is UV emission at ∼380 nm and the other is a green emission at ∼500 nm. The oxygen vacancies were assigned to result in green emission and influenced the vibration energy. By means of annealing at oxygen atmosphere, the vacancies and residual stress were eliminated effectively. This phenomenon was evidenced by XRD patterns and Raman spectrum. Through this easy, rapid and low-cost method, the high-quality ZnO nanowires were obtained.
AB - Under argon- and oxygen-mixed atmosphere, the vapor-liquid-solid method was introduced to fabricate the ZnO nanowires at 700-1000 °C. As grown on Au-coated Si substrate, the single-crystalline ZnO one-dimensional structure was obtained. From XRD patterns, the growth orientation of nanowires was 〈0 0 2〉 along the c-axis. Two emission bands were observed in PL spectra, one is UV emission at ∼380 nm and the other is a green emission at ∼500 nm. The oxygen vacancies were assigned to result in green emission and influenced the vibration energy. By means of annealing at oxygen atmosphere, the vacancies and residual stress were eliminated effectively. This phenomenon was evidenced by XRD patterns and Raman spectrum. Through this easy, rapid and low-cost method, the high-quality ZnO nanowires were obtained.
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U2 - 10.1016/j.jcrysgro.2004.10.046
DO - 10.1016/j.jcrysgro.2004.10.046
M3 - Article
AN - SCOPUS:12244304203
SN - 0022-0248
VL - 274
SP - 506
EP - 511
JO - Journal of Crystal Growth
JF - Journal of Crystal Growth
IS - 3-4
ER -