Studying of quantum-size effects origination in semiconducting lead sulfide nanocrystals

被引:0
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作者
A. I. Kovalev
D. L. Wainshtein
A. Yu. Rashkovskiy
Y. Golan
A. Osherov
N. Ashkenazy
机构
[1] CNIICHERMET,Bardin Central Research Scientific Institute of Ferrous Metallurgy, Institute of Metal Science and Physics of Metals
[2] Ben-Gurion University of the Negev,Faculty of Engineering Sciences
关键词
Interband Transition; High Binding Energy; Lead Sulfide; Electron Energy Loss Spectrum; Size Shift;
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学科分类号
摘要
Lead sulfide (PbS) crystals with sizes from 20 to 500 nm were deposited in chemical bath from an alkaline solution (CBD method). The morphology of specimens was studied using high resolution scanning electron microscopy (HRSEM). Influence of crystallite sizes on the electronic structure was studied with X-ray photoelectron spectroscopy (XPS) and high resolution electrons energy losses spectroscopy (HREELS). The work function was measured with a Kelvin probe microscopy in air.
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页码:633 / 638
页数:5
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