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1. 山东大学 化学与化工学院, 山东 济南 250061
2. 山东大学 材料科学与工程学院,山东 济南,250061
收稿日期:2010-11-27,
修回日期:2010-12-24,
网络出版日期:2011-05-22,
纸质出版日期:2011-05-22
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刘宝, 吴佑实, 吴莉莉, 张长桥. 单晶ZnO 纳米棒的H<sub>2</sub>O<sub>2</sub> 辅助水热法制备与表征[J]. 发光学报, 2011,32(5): 423-427
LIU Bao, WU You-shi, WU Li-li, ZHANG Chang-qiao. Preparation and Characterization of Single-crystal ZnO Nanorods via a H<sub>2</sub>O<sub>2</sub>-assisted Hydrothermal Method[J]. Chinese Journal of Luminescence, 2011,32(5): 423-427
刘宝, 吴佑实, 吴莉莉, 张长桥. 单晶ZnO 纳米棒的H<sub>2</sub>O<sub>2</sub> 辅助水热法制备与表征[J]. 发光学报, 2011,32(5): 423-427 DOI: 10.3788/fgxb20113205.0423.
LIU Bao, WU You-shi, WU Li-li, ZHANG Chang-qiao. Preparation and Characterization of Single-crystal ZnO Nanorods via a H<sub>2</sub>O<sub>2</sub>-assisted Hydrothermal Method[J]. Chinese Journal of Luminescence, 2011,32(5): 423-427 DOI: 10.3788/fgxb20113205.0423.
以二水醋酸锌和氢氧化钠为起始原料
采用H
2
O
2
辅助水热法制备了粒径分布均匀的ZnO纳米棒
用XRD、FTIR、FESEM、HRTEM和SEAD等手段对其进行了表征。结果表明
制备的ZnO纳米棒是单晶体
具有六边形截面并沿[0001]晶体方向生长。光致发光谱(PL)测试结果表明
添加H
2
O
2
制得的ZnO纳米棒在390 nm处的紫外发射峰大幅增强
而在558 nm处的绿色发射峰则很弱。加入H
2
O
2
可以调节ZnO晶体的成核和生长速率
改善晶体的质量。
Using zinc acetate dihydrate and sodium hydroxide as starting materials
ZnO nanorods with narrower size distribution were prepared via a H
2
O
2
-assisted hydrothermal process. The samples are characterized by means of XRD
FTIR
FESEM
HRTEM and SAED. The results show that the samples are single crystalline in nature. All of the nanorods have hexagonal cross sections and grow along the [0001] crystallographic direction. The room temperature photoluminescence (PL) measurement results show that the UV emission intensity at 390 nm of the as-obtained nanorods with H
2
O
2
increases significantly
while the green emission at 558 nm is suppressed. The addition of H
2
O
2
can modulate the nucleation and the growth rate of ZnO crystal.
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