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This article is cited in 1 scientific paper (total in 1 paper)
Adsorption of Ba atoms influences the composition, emission, and optical properties of CdS single crystals
B. E. Umirzakova, J. Sh. Sodikjanovb, D. A. Tashmukhamedovaa, A. A. Abduvaitova, E. M. Rabbimovc a Tashkent State Technical University named after Islam Karimov
b Institute of Ion-Plasma and Laser Technologies, Uzbekistan Academy of Sciences, Tashkent
c Djizak Polytechnical Institute
Abstract:
The composition, emission and optical properties of CdS single crystals with a Ba surface film with a thickness of 0.5 to 5 monolayers have been studied. It was found that with an increase in $\Theta$ to 1 monolayer, the depth of the exit zone for true secondary electrons (and photoelectrons) $\lambda$ significantly increases, which is explained by a decrease in the work function. With a further increase in $\Theta$, the values of $\lambda$ and the intensity of the photocurrent decrease. It is shown that at room temperature there is no noticeable interdiffusion of atoms at the Ba–CdS interface. After heating at $T$ = 700 K, intense diffusion of S occurs into the Ba film and a compound of the Ba$_2$S type is formed.
Keywords:
electron exit zone, adsorption, profiles distribution of atoms, emission efficiency, work functions.
Received: 25.11.2020 Revised: 26.02.2020 Accepted: 02.03.2020
Citation:
B. E. Umirzakov, J. Sh. Sodikjanov, D. A. Tashmukhamedova, A. A. Abduvaitov, E. M. Rabbimov, “Adsorption of Ba atoms influences the composition, emission, and optical properties of CdS single crystals”, Pisma v Zhurnal Tekhnicheskoi Fiziki, 47:12 (2021), 3–5; Tech. Phys. Lett., 47:8 (2021), 620–623
Linking options:
https://www.mathnet.ru/eng/pjtf4753 https://www.mathnet.ru/eng/pjtf/v47/i12/p3
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