Influence of external field and particle size upon theoretical photoelectron emission spectral response of silver nano-particles embedded in BaO thin film

doi:10.1088/1009-1963/14/8/036

Abstract

Abstract The dependence of the spectral distribution of photoelectron emission from silver nano-particles embedded in BaO semiconductor thin film on external voltage and the size of silver nano-particles is predicted and investigated theoretically. The photoelectron emission response curves to light of wavelength between 0.2 and 0.8μm are given. The dependence of the wavelength threshold on the size of silver nano-particles and external field strength is also shown. Photoemission in the visible spectrum is explained as due to the optical resonance absorption in the silver particles. This could be of importance in designing field-assisted photocathodes and finding their optimum operation conditions.

Keywords: photoemission photoelectron spectra semiconductor films

Received: 28 December 2004
Revised: 14 March 2005
Accepted manuscript online:

PACS:	79.60.Bm	(Clean metal, semiconductor, and insulator surfaces)
	78.67.-n	(Optical properties of low-dimensional, mesoscopic, and nanoscale materials and structures)
	78.66.Li	(Other semiconductors)

Fund: Project supported by the Natural Science Foundation of Yunnan Province (Grant No 2004A00229M).

Cite this article:

Yang Hai (杨海), Yang Li-Dong (杨黎东), Ma Yong (马勇), Yang Zhi (杨智) Influence of external field and particle size upon theoretical photoelectron emission spectral response of silver nano-particles embedded in BaO thin film 2005 Chinese Physics 14 1665

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Influence of external field and particle size upon theoretical photoelectron emission spectral response of silver nano-particles embedded in BaO thin film

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