Research output: Contribution to journal › Article › peer-review
Exploring electron energy dependencies in the formation of surface charge on ZnO crystals. / Sharopov, U.; Samiev, K; To'raev, A; Kurbanov, M; Karimov, M; Saidov, D; Akbarova, F.; Turopova, S; Iskandarov, Z; Islamov, S; Комолов, Алексей Сергеевич; Pronin, Igor A.; Bandarenka, H; Abdurakhmonov, O; Abdurakhmonov, Sh; Srinivasan, M; Kaur, K.
In: Vacuum, Vol. 227, 113395, 01.09.2024.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Exploring electron energy dependencies in the formation of surface charge on ZnO crystals
AU - Sharopov, U.
AU - Samiev, K
AU - To'raev, A
AU - Kurbanov, M
AU - Karimov, M
AU - Saidov, D
AU - Akbarova, F.
AU - Turopova, S
AU - Iskandarov, Z
AU - Islamov, S
AU - Комолов, Алексей Сергеевич
AU - Pronin, Igor A.
AU - Bandarenka, H
AU - Abdurakhmonov, O
AU - Abdurakhmonov, Sh
AU - Srinivasan, M
AU - Kaur, K
PY - 2024/9/1
Y1 - 2024/9/1
N2 - This study delves into the phenomena surrounding the emergence of negative charge accumulation on the surface of zinc oxide (ZnO) crystals upon exposure to low-energy electron irradiation within the range of E = 0 ÷ 600 eV. We demonstrate the critical significance of the primary electron energy in dictating the initial processes initiated at the ZnO surface. Energy thresholds governing both the genesis and elimination of surface charge, along with the formation of oxygen vacancies on the ZnO surface, are elucidated. Our findings reveal that irradiation instigates distinct dissociative pathways contingent upon electron energy, engendering diverse physical and chemical transformations via bond dissociation, desorption, and atomic and molecular restructuring of the surface. These insights serve as pivotal groundwork towards advancing the fabrication of epitaxial films, facilitating the controlled generation of two-dimensional structures predicated on surface potential modulation.
AB - This study delves into the phenomena surrounding the emergence of negative charge accumulation on the surface of zinc oxide (ZnO) crystals upon exposure to low-energy electron irradiation within the range of E = 0 ÷ 600 eV. We demonstrate the critical significance of the primary electron energy in dictating the initial processes initiated at the ZnO surface. Energy thresholds governing both the genesis and elimination of surface charge, along with the formation of oxygen vacancies on the ZnO surface, are elucidated. Our findings reveal that irradiation instigates distinct dissociative pathways contingent upon electron energy, engendering diverse physical and chemical transformations via bond dissociation, desorption, and atomic and molecular restructuring of the surface. These insights serve as pivotal groundwork towards advancing the fabrication of epitaxial films, facilitating the controlled generation of two-dimensional structures predicated on surface potential modulation.
KW - Charge
KW - Defect formation
KW - Electron irradiation
KW - Surface
KW - Temperature annealing
KW - Zinc oxide
UR - https://www.mendeley.com/catalogue/66545345-7806-3a28-81fa-10bb563f3b59/
U2 - 10.1016/j.vacuum.2024.113395
DO - 10.1016/j.vacuum.2024.113395
M3 - Article
VL - 227
JO - Vacuum
JF - Vacuum
SN - 0042-207X
M1 - 113395
ER -
ID: 121342250