Crystallography of Novel T-Shaped ZnS Nanostructures and Their Cathodoluminescence

被引：21

作者：

Liu, Baodan ^{[1
,2
]}

Bando, Yoshio ^{[2
]}

Wang, Zaien ^{[1
]}

Li, Chengyao ^{[3
,4
]}

Gao, Min ^{[3
,4
]}

Mitome, Masanori ^{[2
]}

Jiang, Xin ^{[1
]}

Golberg, Dmitri ^{[2
]}

机构：

[1] Dalian Univ Technol, Sch Mat Sci & Engn, Dalian 116024, Peoples R China

[2] Natl Inst Mat Sci, Int Ctr Mat Nanoarchitecton MANA, Tsukuba, Ibaraki 3050044, Japan

[3] Peking Univ, Key Lab Phys & Chem Nanodevices, Beijing 100871, Peoples R China

[4] Peking Univ, Dept Elect, Beijing 100871, Peoples R China

来源：

CRYSTAL GROWTH & DESIGN | 2010年 / 10卷 / 09期

关键词：

THERMAL EVAPORATION; NANOBELTS; GROWTH; HETEROSTRUCTURES; NANOPARTICLES; LUMINESCENCE; NANORIBBONS; FABRICATION;

D O I：

10.1021/cg100835a

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Novel T-shaped ZnS nanostructures are synthesized through simple ZnS powder evaporation. High-resolution transmission electron microscopy (HRTEM) and electron diffraction (ED) analyses demonstrate that the structures are composed of a bicrystalline base sheet (010)/(102)/(010)* and a protruding thick wire. The two structural domains are connected along the twin boundary on the (102) plane. Cathodoluminescence measurements show that the T-shaped ZnS nanostructures exhibit three clear emission zones in the ranges of 380-550 nm, 550-760 nm, and 760-1000 nm, whereas the band gap emission is not observed. Finally, the related optical emission mechanism is discussed based on the TEM results.

引用

页码：4143 / 4147

页数：5

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