Synthesis and x-ray characterization of sputtered bi-alkali antimonide photocathodes
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چکیده
منابع مشابه
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15 صفحه اولStructure of multialkali antimonide photocathodes studied by X-ray photoelectron spectroscopy
From a comparison of the relative intensities of photoelectrons with different escape depths for Na, K, CS, and Sb in several multialkali antimonide photocathodes covering a range of high photosensitivities, a model of the structure of these surfaces can be given. In particular, the results indicate for NazKSb(Cs), the S-20, a surface layer consisting of KzCsSb and NaKzSb-30 8, thick over a bas...
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A new processing technique for a few alkali antimonide photocathodes is described. This technique does not require an initial antimony layer as in the conventional techniques. Electron microscopic examination of the antimony film shows that the antimony film is affected by ambient gases, and the improvement of senistivity which results in this technique is thought to be due to the absence of it...
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Alkali antimonide photocathodes are a strong contender for the cathode of choice for next-generation photon sources such as LCLS II or the XFEL. These materials have already found extensive use in photodetectors and image intensifiers. However, only recently have modern synchrotron techniques enabled a systematic study of the formation chemistry of these materials. Such analysis has led to the ...
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ژورنال
عنوان ژورنال: APL Materials
سال: 2017
ISSN: 2166-532X
DOI: 10.1063/1.5010950