High field emission enhancement of ZnO-nanorods via hydrothermal synthesis

Jing Chen; Wei Lei; Weiqiang Chai; Zichen Zhang; Chi Li; Xiaobing Zhang

doi:10.1016/j.sse.2007.09.010

High field emission enhancement of ZnO-nanorods via hydrothermal synthesis

Jing Chen
, Wei Lei^*
, Weiqiang Chai
, Zichen Zhang
, Chi Li
, Xiaobing Zhang

^*此作品的通讯作者

Southeast University, Nanjing

科研成果: 期刊稿件 › 文章 › 同行评审

46 引用（Scopus）

摘要

We describe the synthesis of zinc oxide nanorods by a hydrothermal method in this paper. The reactants were zinc nitrate hexahydrate and hexamethylenetetramine (HMT, (CH₂)₆N₄) and the solvent was absolute alcohol. The ZnO-nanostructures have been characterized with X-ray diffraction (XRD), scanning electron microscopy (SEM), and transmission electron microscopy (TEM): the nanorods had a length of 9-10 μm and a diameter 0.5 μm. From the field emission characteristics of the ZnO-nanorods the following properties were derived: a low turn-on electric field of 1.9 V/μm at a current density of 0.2 μA/cm², maximum current density was 1 mA/cm² at a threshold field of 7.4 V/μm and a field emission enhancement factor β of 2510. Furthermore, ZnO-nanorods show a higher stability and longer lifetime as compared with those of ZnO-nanoparticles and tetrapod ZnO-nanostructures.

源语言	英语
页（从-至）	294-298
页数	5
期刊	Solid-State Electronics
卷	52
期	2
DOI	https://doi.org/10.1016/j.sse.2007.09.010
出版状态	已出版 - 2月 2008
已对外发布	是

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title = "High field emission enhancement of ZnO-nanorods via hydrothermal synthesis",

abstract = "We describe the synthesis of zinc oxide nanorods by a hydrothermal method in this paper. The reactants were zinc nitrate hexahydrate and hexamethylenetetramine (HMT, (CH2)6N4) and the solvent was absolute alcohol. The ZnO-nanostructures have been characterized with X-ray diffraction (XRD), scanning electron microscopy (SEM), and transmission electron microscopy (TEM): the nanorods had a length of 9-10 μm and a diameter 0.5 μm. From the field emission characteristics of the ZnO-nanorods the following properties were derived: a low turn-on electric field of 1.9 V/μm at a current density of 0.2 μA/cm2, maximum current density was 1 mA/cm2 at a threshold field of 7.4 V/μm and a field emission enhancement factor β of 2510. Furthermore, ZnO-nanorods show a higher stability and longer lifetime as compared with those of ZnO-nanoparticles and tetrapod ZnO-nanostructures.",

keywords = "Enhancement factor, Field emission, Hydrothermal, ZnO",

author = "Jing Chen and Wei Lei and Weiqiang Chai and Zichen Zhang and Chi Li and Xiaobing Zhang",

year = "2008",

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doi = "10.1016/j.sse.2007.09.010",

language = "英语",

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pages = "294--298",

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TY - JOUR

T1 - High field emission enhancement of ZnO-nanorods via hydrothermal synthesis

AU - Chen, Jing

AU - Lei, Wei

AU - Chai, Weiqiang

AU - Zhang, Zichen

AU - Li, Chi

AU - Zhang, Xiaobing

PY - 2008/2

Y1 - 2008/2

N2 - We describe the synthesis of zinc oxide nanorods by a hydrothermal method in this paper. The reactants were zinc nitrate hexahydrate and hexamethylenetetramine (HMT, (CH2)6N4) and the solvent was absolute alcohol. The ZnO-nanostructures have been characterized with X-ray diffraction (XRD), scanning electron microscopy (SEM), and transmission electron microscopy (TEM): the nanorods had a length of 9-10 μm and a diameter 0.5 μm. From the field emission characteristics of the ZnO-nanorods the following properties were derived: a low turn-on electric field of 1.9 V/μm at a current density of 0.2 μA/cm2, maximum current density was 1 mA/cm2 at a threshold field of 7.4 V/μm and a field emission enhancement factor β of 2510. Furthermore, ZnO-nanorods show a higher stability and longer lifetime as compared with those of ZnO-nanoparticles and tetrapod ZnO-nanostructures.

AB - We describe the synthesis of zinc oxide nanorods by a hydrothermal method in this paper. The reactants were zinc nitrate hexahydrate and hexamethylenetetramine (HMT, (CH2)6N4) and the solvent was absolute alcohol. The ZnO-nanostructures have been characterized with X-ray diffraction (XRD), scanning electron microscopy (SEM), and transmission electron microscopy (TEM): the nanorods had a length of 9-10 μm and a diameter 0.5 μm. From the field emission characteristics of the ZnO-nanorods the following properties were derived: a low turn-on electric field of 1.9 V/μm at a current density of 0.2 μA/cm2, maximum current density was 1 mA/cm2 at a threshold field of 7.4 V/μm and a field emission enhancement factor β of 2510. Furthermore, ZnO-nanorods show a higher stability and longer lifetime as compared with those of ZnO-nanoparticles and tetrapod ZnO-nanostructures.

KW - Enhancement factor

KW - Field emission

KW - Hydrothermal

KW - ZnO

UR - https://www.scopus.com/pages/publications/38049037843

U2 - 10.1016/j.sse.2007.09.010

DO - 10.1016/j.sse.2007.09.010

M3 - 文章

AN - SCOPUS:38049037843

SN - 0038-1101

VL - 52

SP - 294

EP - 298

JO - Solid-State Electronics

JF - Solid-State Electronics

IS - 2

ER -

High field emission enhancement of ZnO-nanorods via hydrothermal synthesis

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