Au-catalyst growth and photoluminescence of zinc-blende and wurtzite ZnS nanobelts via chemical vapor deposition
Au-catalyst growth and photoluminescence of zinc-blende and wurtzite ZnS nanobelts via chemical vapor deposition
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通过化学气相沉积法实现闪锌矿和纤锌矿 ZnS 纳米带的金催化剂生长和光致发光
DOI：
10.1016/j.jlumin.2006.01.074
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发表时间：
2007
影响因子：
3.6
通讯作者：
中科院分区：
文献类型：
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作者：
以Au为催化剂，石墨为还原剂，在1050℃快速化学气相沉积法制备了闪锌矿(ZB)和纤锌矿(W)ZnS纳米带。沉积温度对硫化锌纳米带的尺寸和晶体结构有影响。X射线衍射谱表明，600℃下沉积的ZnS纳米带主要为ZB-ZnS，而800℃下沉积的ZnS纳米带仅为W-ZnS。透射电子显微镜图像和选区电子衍射图表明，在600℃下沉积的ZnS纳米带有三种晶体结构：ZB-ZnS沿[001]生长，W-ZnS沿[0-110]生长，ZB孪晶和W-ZnS共存。在He-Cd激光激发下，纳米带的光致发光光谱在420 nm处出现蓝峰，该蓝峰来自于硫化锌的自激活中心，而在520 nm处来自金杂质中心。
Zinc-blende (ZB) and wurtzite (W) ZnS nanobelts have been achieved by rapid chemical vapor deposition at 1050°C, with Au as catalyst and graphite as reductant. The size and crystal structure of ZnS nanobelts were influenced by the deposition temperature. In general, the ZnS nanobelts deposited at 600°C were smoother and smaller than those at 800°C. X-ray diffraction spectrum shows the ZnS nanobelts deposited at 600°C were mainly ZB–ZnS, but those at 800°C were only W–ZnS. Transmission electron microscopy image and selected-area electron diffraction pattern show three crystal structures of ZnS nanobelts which were deposited at 600°C: ZB–ZnS growing along [001], W–ZnS along [0-110] and the co-existence of ZB-twins and W–ZnS. The PL spectrum of the nanobelts under a He–Cd laser excitation shows a blue peak at 420nm originating from ZnS self-activated center of ZnS and a green emission at 520nm from Au impurity center.
DOI：
10.1063/1.3034193
发表时间：
1966-05
期刊：
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影响因子：
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作者：
A. Verma;P. Krishna;H. M. Otte
通讯作者：
A. Verma;P. Krishna;H. M. Otte
影响因子：
2.8
作者：
Lin, M;Sudhiranjan, T;Loh, KP
通讯作者：
Loh, KP
影响因子：
2.8
作者：
Yewu Wang;Lide Zhang;C. Liang;Guozhong Wang;Xinsheng Peng
通讯作者：
Yewu Wang;Lide Zhang;C. Liang;Guozhong Wang;Xinsheng Peng