Issue |
E3S Web Conf.
Volume 383, 2023
International Scientific Conference Transport Technologies in the 21st Century (TT21C-2023) “Actual Problems of Decarbonization of Transport and Power Engineering: Ways of Their Innovative Solution”
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Article Number | 04051 | |
Number of page(s) | 9 | |
Section | Mechanical Engineering and New Energy Technologies | |
DOI | https://doi.org/10.1051/e3sconf/202338304051 | |
Published online | 24 April 2023 |
Photoconductivity of gamma-irradiated Znse (Te)/ZnO:O and ZnSe(Te)/ZnO:O,Zn nanogeterojuctions
Tashkent State Technical University Named after Islam Karimov, Street University, 2A, 100095 Tashkent, Uzbekistan
* Corresponding author: dilnoza_elmurodova@mail.ru
Possibility of enhancing the photoconductivity of ZnSe (0.2%Те)/ZnO:O nanoheterojunction was investigated under effect of thermo-treatment in zinc vapor followed by 60Сo gamma-irradiation in air to the dose of 106 Gy by means of generation of impurity-defect complexes. The obtained ZnSe (0.2%Te)/ZnO:O,Zn nanoheterojunction had an electron conductivity with the activation energy 0.33 eV that is caused by thermo-stimulated transfer of charge carriers on the stable resonance level Γ6v= 5.76 eV in the conducting band. The significant photoconductivity growth from 10-10 to 10-5 Ω-1 was achieved at 300 K, and also a broad band (480-1100 nm) light scattering at free carriers occurred due to formation of additional stable associates (OSe0TeSe0VZn-), (OSe0VZn-)- or (OSe0VZnMeZnIIIZni) at the interface between the matrix crystal p-ZnSe(0.2%Te):O,Zn and nanocrystallite n-ZnO of 40 nm size, where amorphous phase layer of 1.2 nm was also grown.
© The Authors, published by EDP Sciences, 2023
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