Photo-enhanced field electron emission of cadmium sulfide nanowires

Jinling Zhang; Yinghua Lv; Ning Liu; Yanqing Li; Peng Gao; Xuedong Bai

doi:10.1007/s11433-011-4529-0

Photo-enhanced field electron emission of cadmium sulfide nanowires

Jinling Zhang^*
, Yinghua Lv
, Ning Liu
, Yanqing Li
, Peng Gao
, Xuedong Bai

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

The response of field electron emission of cadmium sulfide (CdS) nanowires (NWs) to visible light has been investigated. It is found that, upon light illumination, the turn-on voltage drops, emission current increases obviously, and the Fowler-Nordheim behavior deviates from a straight line. A process of field emission coupled with semiconducting properties of CdS NWs is proposed. Photon-excited electron transition from the valence band to the conductance band of CdS nanowires increases the quantity of emitting electrons, and the photoemission decreases the effective work function of CdS emitters, which largely enhances the field emission performance. The response of field emission of CdS NWs to light illumination suggests an approach for tuning field emission of semiconductor emitters.

Original language	English
Pages (from-to)	1963-1966
Number of pages	4
Journal	Science China: Physics, Mechanics and Astronomy
Volume	54
Issue number	11
DOIs	https://doi.org/10.1007/s11433-011-4529-0
State	Published - Nov 2011
Externally published	Yes

Keywords

CdS nanowires
field electron emission
optical coupling
semiconductor emitters

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10.1007/s11433-011-4529-0

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title = "Photo-enhanced field electron emission of cadmium sulfide nanowires",

abstract = "The response of field electron emission of cadmium sulfide (CdS) nanowires (NWs) to visible light has been investigated. It is found that, upon light illumination, the turn-on voltage drops, emission current increases obviously, and the Fowler-Nordheim behavior deviates from a straight line. A process of field emission coupled with semiconducting properties of CdS NWs is proposed. Photon-excited electron transition from the valence band to the conductance band of CdS nanowires increases the quantity of emitting electrons, and the photoemission decreases the effective work function of CdS emitters, which largely enhances the field emission performance. The response of field emission of CdS NWs to light illumination suggests an approach for tuning field emission of semiconductor emitters.",

keywords = "CdS nanowires, field electron emission, optical coupling, semiconductor emitters",

author = "Jinling Zhang and Yinghua Lv and Ning Liu and Yanqing Li and Peng Gao and Xuedong Bai",

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month = nov,

doi = "10.1007/s11433-011-4529-0",

language = "英语",

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TY - JOUR

T1 - Photo-enhanced field electron emission of cadmium sulfide nanowires

AU - Zhang, Jinling

AU - Lv, Yinghua

AU - Liu, Ning

AU - Li, Yanqing

AU - Gao, Peng

AU - Bai, Xuedong

PY - 2011/11

Y1 - 2011/11

N2 - The response of field electron emission of cadmium sulfide (CdS) nanowires (NWs) to visible light has been investigated. It is found that, upon light illumination, the turn-on voltage drops, emission current increases obviously, and the Fowler-Nordheim behavior deviates from a straight line. A process of field emission coupled with semiconducting properties of CdS NWs is proposed. Photon-excited electron transition from the valence band to the conductance band of CdS nanowires increases the quantity of emitting electrons, and the photoemission decreases the effective work function of CdS emitters, which largely enhances the field emission performance. The response of field emission of CdS NWs to light illumination suggests an approach for tuning field emission of semiconductor emitters.

AB - The response of field electron emission of cadmium sulfide (CdS) nanowires (NWs) to visible light has been investigated. It is found that, upon light illumination, the turn-on voltage drops, emission current increases obviously, and the Fowler-Nordheim behavior deviates from a straight line. A process of field emission coupled with semiconducting properties of CdS NWs is proposed. Photon-excited electron transition from the valence band to the conductance band of CdS nanowires increases the quantity of emitting electrons, and the photoemission decreases the effective work function of CdS emitters, which largely enhances the field emission performance. The response of field emission of CdS NWs to light illumination suggests an approach for tuning field emission of semiconductor emitters.

KW - CdS nanowires

KW - field electron emission

KW - optical coupling

KW - semiconductor emitters

UR - https://www.scopus.com/pages/publications/82355169499

U2 - 10.1007/s11433-011-4529-0

DO - 10.1007/s11433-011-4529-0

M3 - 文章

AN - SCOPUS:82355169499

SN - 1674-7348

VL - 54

SP - 1963

EP - 1966

JO - Science China: Physics, Mechanics and Astronomy

JF - Science China: Physics, Mechanics and Astronomy

IS - 11

ER -

Photo-enhanced field electron emission of cadmium sulfide nanowires

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Keywords

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