Metal-like single crystalline boron nanotubes: synthesis and in situ study on electric transport and field emission properties

被引：160

作者：

Liu, Fei ^{[1
,2
]}

Shen, Chengmin ^{[3
]}

Su, Zanjia ^{[1
,2
]}

Ding, Xingle ^{[1
,2
]}

Deng, Shaozhi ^{[1
,2
]}

Chen, Jun ^{[1
,2
]}

Xu, Ningsheng ^{[1
,2
]}

Gao, Hongjun ^{[3
]}

机构：

[1] Sun Yat Sen Univ, State Key Lab Optoelect Mat & Technol, Guangdong Prov Key Lab Display Mat & Technol, Guangzhou 510275, Guangdong, Peoples R China

[2] Sun Yat Sen Univ, Sch Phys & Engn, Guangzhou 510275, Guangdong, Peoples R China

[3] Chinese Acad Sci, Inst Phys, Beijing Natl Lab Condensed Matter Phys, Beijing 100080, Peoples R China

来源：

JOURNAL OF MATERIALS CHEMISTRY | 2010年 / 20卷 / 11期

关键词：

INDIVIDUAL CARBON NANOTUBES; ATOMIC-FORCE MICROSCOPY; NANOWIRE ARRAYS; LASER-ABLATION; NANOSTRUCTURES; NANORODS; NANOPARTICLES; NANOMATERIALS; CONDUCTIVITY; TEMPERATURE;

D O I：

10.1039/b919260c

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Boron nanotubes (BNTs) have been theoretically proposed to have metallic properties whether they are in armchair or zigzag structure, so they have attracted much interest from researchers. However, their real properties have been not understood until now because they are hard to synthesize. In this paper, we have successfully fabricated a large quantity of boron nanotubes, which may provide a way to master their electric and field emission (FE) properties. Study on individual boron nanotubes shows that BNTs have metallic properties with an averaged conductivity of 40 Omega(-1) cm(-1). Moreover, individual BNTs can sustain a high current of about 80 mu A and their current density can reach 2.04 x 10(11) A m(-2), which is very close to those of CNTs. They are also incorporated into prototype luminescent tube devices for the first time and exhibit high luminescent efficiency and stability, which suggests that BNTs have a promising future in the FE area.

引用

页码：2197 / 2205

页数：9

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