Structure and cathodoluminescence of individual ZnS/ZnO biaxial nanobelt heterostructures

被引：189

作者：

Yan, Jian ^{[1
,2
]}

Fang, Xiaosheng ^{[1
,2
,3
,5
]}

Zhang, Lide ^{[1
,2
]}

Bando, Yoshio ^{[5
]}

Gautam, Ujjal K. ^{[5
]}

Dierre, Benjamin ^{[4
]}

Sekiguchi, Takashi ^{[4
]}

Golberg, Dmitri ^{[3
,5
]}

机构：

[1] Chinese Acad Sci, Key Lab Mat Phys, Hefei 230031, Peoples R China

[2] Chinese Acad Sci, Anhui Key Lab Nanomat & Nanostruct, Inst Solid State Phys, Hefei 230031, Peoples R China

[3] Natl Inst Mat Sci, Nanoscale Mat Ctr, Tsukuba, Ibaraki 3050044, Japan

[4] Natl Inst Mat Sci, Adv Elect Mat Ctr, Tsukuba, Ibaraki 3050044, Japan

[5] Natl Inst Mat Sci, World Premier Int Ctr Mat Nanoarchitecton, Tsukuba, Ibaraki 3050044, Japan

来源：

NANO LETTERS | 2008年 / 8卷 / 09期

关键词：

D O I：

10.1021/nl801353c

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

We report on a controlled synthesis of two novel semiconducting heterostructures: heterocrystalline-ZnS/single-crystalline-ZnO biaxial nanobelts and side-to-side single-crystalline ZnS/ZnO biaxial nanobelts via a simple one-step thermal evaporation method. In the first heterostructure, a ZnS domain is composed of the heterocrystalline superlattice (3C-ZnS)(N)(2H-ZnS)(M)[111]-[0001] with the atomically smooth interface between wurtzite and zinc blende ZnS fragments. High-spatial resolution cathodoluminescence studies on individual heterostructures for the first time reveal a new ultraviolet emission peak (similar to 355 nm), which is not observed in separate ZnS or ZnO nanostructures. The present hererostructures are expected to become valuable not only with respect to fundamental research but also for a design of new broad-range ultraviolet nanoscale lasers and sensors.

引用

页码：2794 / 2799

页数：6

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