Photoemission study of Cs-NF(3) activated GaAs(100) negative electron affinity photocathodes

doi:10.1063/1.2945276

	Photoemission study of Cs-NF(3) activated GaAs(100) negative electron affinity photocathodes
	Liu, Zhi; Sun, Yun; Peterson, Samuel; Pianetta, Piero
	2008
发表期刊	APPLIED PHYSICS LETTERS
ISSN	0003-6951
卷号	92 期号:24 页码:-
发表状态	已发表
DOI	10.1063/1.2945276
摘要	GaAs based negative electron affinity photocathodes activated with Cs and NF(3) are used as polarized electron sources for linear accelerators. It is generally believed that the activation layer consists of CsF. The activation layers of Cs-NF(3) on GaAs photocathodes are herein investigated using synchrotron radiation photoelectron spectroscopy. F1s, N1s, and other core levels are recorded at photon energies ranging from 70 to 820 eV. Surprisingly, a significant amount of nitrogen is observed in the activation layers. Two distinct species of nitrogen are observed, one of which decreases along with the fluorine signal as the yield of the photocathode decays with time.
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收录类别	SCI
WOS研究方向	Physics
WOS类目	Physics, Applied
WOS记录号	WOS:000256934900007
出版者	AMER INST PHYSICS
WOS关键词	NF3 ; CS
引用统计
文献类型	期刊论文
条目标识符	https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/31135
专题	个人在本单位外知识产出
通讯作者	Liu, Zhi
作者单位	Stanford Synchrotron Radiat Lab, Menlo Pk, CA 94025 USA
推荐引用方式 GB/T 7714	Liu, Zhi,Sun, Yun,Peterson, Samuel,et al. Photoemission study of Cs-NF(3) activated GaAs(100) negative electron affinity photocathodes[J]. APPLIED PHYSICS LETTERS,2008,92(24):-.
APA	Liu, Zhi,Sun, Yun,Peterson, Samuel,&Pianetta, Piero.(2008).Photoemission study of Cs-NF(3) activated GaAs(100) negative electron affinity photocathodes.APPLIED PHYSICS LETTERS,92(24),-.
MLA	Liu, Zhi,et al."Photoemission study of Cs-NF(3) activated GaAs(100) negative electron affinity photocathodes".APPLIED PHYSICS LETTERS 92.24(2008):-.