Morphology-controlled synthesis and electron field emission properties of ZnSe nanowalls

Pei Xie; Shaolin Xue; Youya Wang; Zhiyong Gao; Hange Feng; Lingwei Li; Dajun Wu; Lianwei Wang; Paul K. Chu

doi:10.1039/c6ra27541a

Morphology-controlled synthesis and electron field emission properties of ZnSe nanowalls

Pei Xie, Shaolin Xue^*, Youya Wang, Zhiyong Gao, Hange Feng, Lingwei Li, Dajun Wu, Lianwei Wang, Paul K. Chu

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

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Abstract

ZnSe nanowalls are prepared on Zn substrates hydrothermally at 180 °C for 12 h. The structure, morphology, and chemical composition of the ZnSe nanowalls are determined by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), energy-dispersive X-ray analysis (EDS), and Raman scattering. The concentration of hydrazine hydrate (N₂H₄·H₂O) plays an important role in the formation and morphology of the ZnSe nanowalls and XRD reveals that all the ZnSe nanocrystals have a cubic zinc blende structure. The ZnSe nanowalls with an optimal morphology deliver a good field electron emission performance with a turn-on field of 1.51 V μm⁻¹ and enhancement factor of 4797. The formation mechanism is discussed. The simple and controlled preparation procedures and good properties of the ZnSe nanowalls bode well for application in electronics and optoelectronics.

Original language	English
Pages (from-to)	10631-10637
Journal	RSC Advances
Volume	7
Issue number	18
Online published	8 Feb 2017
DOIs	https://doi.org/10.1039/c6ra27541a
Publication status	Published - 2017

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title = "Morphology-controlled synthesis and electron field emission properties of ZnSe nanowalls",

abstract = "ZnSe nanowalls are prepared on Zn substrates hydrothermally at 180 °C for 12 h. The structure, morphology, and chemical composition of the ZnSe nanowalls are determined by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), energy-dispersive X-ray analysis (EDS), and Raman scattering. The concentration of hydrazine hydrate (N2H4·H2O) plays an important role in the formation and morphology of the ZnSe nanowalls and XRD reveals that all the ZnSe nanocrystals have a cubic zinc blende structure. The ZnSe nanowalls with an optimal morphology deliver a good field electron emission performance with a turn-on field of 1.51 V μm−1 and enhancement factor of 4797. The formation mechanism is discussed. The simple and controlled preparation procedures and good properties of the ZnSe nanowalls bode well for application in electronics and optoelectronics.",

author = "Pei Xie and Shaolin Xue and Youya Wang and Zhiyong Gao and Hange Feng and Lingwei Li and Dajun Wu and Lianwei Wang and Chu, {Paul K.}",

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TY - JOUR

T1 - Morphology-controlled synthesis and electron field emission properties of ZnSe nanowalls

AU - Xie, Pei

AU - Xue, Shaolin

AU - Wang, Youya

AU - Gao, Zhiyong

AU - Feng, Hange

AU - Li, Lingwei

AU - Wu, Dajun

AU - Wang, Lianwei

AU - Chu, Paul K.

PY - 2017

Y1 - 2017

N2 - ZnSe nanowalls are prepared on Zn substrates hydrothermally at 180 °C for 12 h. The structure, morphology, and chemical composition of the ZnSe nanowalls are determined by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), energy-dispersive X-ray analysis (EDS), and Raman scattering. The concentration of hydrazine hydrate (N2H4·H2O) plays an important role in the formation and morphology of the ZnSe nanowalls and XRD reveals that all the ZnSe nanocrystals have a cubic zinc blende structure. The ZnSe nanowalls with an optimal morphology deliver a good field electron emission performance with a turn-on field of 1.51 V μm−1 and enhancement factor of 4797. The formation mechanism is discussed. The simple and controlled preparation procedures and good properties of the ZnSe nanowalls bode well for application in electronics and optoelectronics.

AB - ZnSe nanowalls are prepared on Zn substrates hydrothermally at 180 °C for 12 h. The structure, morphology, and chemical composition of the ZnSe nanowalls are determined by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), energy-dispersive X-ray analysis (EDS), and Raman scattering. The concentration of hydrazine hydrate (N2H4·H2O) plays an important role in the formation and morphology of the ZnSe nanowalls and XRD reveals that all the ZnSe nanocrystals have a cubic zinc blende structure. The ZnSe nanowalls with an optimal morphology deliver a good field electron emission performance with a turn-on field of 1.51 V μm−1 and enhancement factor of 4797. The formation mechanism is discussed. The simple and controlled preparation procedures and good properties of the ZnSe nanowalls bode well for application in electronics and optoelectronics.

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U2 - 10.1039/c6ra27541a

DO - 10.1039/c6ra27541a

M3 - RGC 21 - Publication in refereed journal

SN - 2046-2069

VL - 7

SP - 10631

EP - 10637

JO - RSC Advances

JF - RSC Advances

IS - 18

ER -

Morphology-controlled synthesis and electron field emission properties of ZnSe nanowalls

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