EVOLUTION OF COPPER IONS IN HIGH-SILICA THIN FILMS مروان فرحان سيف الكمالي1،*، اندريه بويكا1،†، ديمتري ليونيدوفيتش كوفالينكا2 ، يحيى طه عبده الاديمي3، نتاليا دروبيشفسكايا1،يوري اليكسينكا1.
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Abstract
Abstract:
The paper studies Thin Films based on Silica which doped with Copper Ions (SiO2:CuO) at A Molar Ratio of (1:0.20; 1:0.30; 1:0.40) Deposited on Quartz and Silicon Substrates. The films were obtained by ion sputtering in a gaseous medium (argon/oxygen) from High-Silica targets obtained by the Sol-Gel method. The morphology and structure of the films were studied using scanning electron microscopy and X-ray phase analysis. X-ray phase analysis of the films revealed that the structure of the films is polycrystalline and has a hexagonal structure. It has been established that the reduction of Cu+2 to Cu+ occurs during film preparation in argon, which is confirmed by the analysis of absorption spectra and XRD data. The obtained frequency dependences of the dielectric permittivity of SiO2:CuO films showed a decrease in the dielectric permittivity and dielectric loss tangent in the range of (103 to 106) Hz. It has been found that when the SiO2:CuO film thickness is less than 100 nm, a thin-film capacitor is not always formed. The calculation of the film band gap shows the presence of two energy bands corresponding to the SiO2:CuO and SiO2:Cu2O compositions. The band gap of Eg(CuO) changes with increasing concentration from 3.564 to 2.598 eV, and Eg(Cu2O) changes with increasing concentration from 5.299 to 3.586 eV. A dip corresponding to the plasmon effect is observed in the transmission spectra in the region of 600–650 nm.
KEYWORDS: Ion Beam Sprayer; Sol-gel; Copper ions; Band gap;
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المراجع والمصادر
Tenkyong T., Bachan N., Raja J., Naveen Rumar P., Merline Shyla J. Investigation of sol-gtl proctssed CuO/SiO2 nanocomposite as a potential photoanode vaterial // Materials Science-Poland. - 2015. - V. 33 (4). - P.826-834.
Ping Z., Yurong Z., Qingbo Y., Fengzhen L., Jingwen L., Gangqiang D.A. Сombined experimental-computational study on nitrogen doped Cu2O as the wide-spectrum absorption material // J. Semicond. – 2014 – V. 35 – P. 103001 (5 pages).
Pshenova A., Klyukin D., Sidorov A., Andreeva O. Porous glasses with silver nanoparticles as the sensitive material for sensors to measure the index of refraction of analytes // Journal of Optical technology. - 2016. - Vol. 83, Iss. 7. - P. 438- 440.
Villa N., Golosov D.A., Nguyen T.D. Formation of titanium oxide thin films by reactive magnetron sputtering // Doklady BGUIR. - 2019. - №5. - P.87-93. (In Russ.).
Olenin A. Yu., Nizamov T.R., Lisichkin G.V. Chemical modification of silver nanoparticles. Janus particle production // Russian Nanotechnologies. – 2014 – volume.9. - №9-10. – P. 19-24. (In Russ.).
Alekseenko A.A., AL–Kamali M.F.S.H., Titenkov О.А. Synthesis and properties of xerogels of composition SiO2:Cu°, intended for application In biomedical research // Bulletin of Sukhoi State Technical University of Gomel: scientific and practical journal. - 2020. - No. (3-4). – C.40-47. (In Russ.).
AL-Kamali M.F.S.H. Alekseenko A.A., Titenkov О.А. Structure formation of SiO2-xerogels containing copper compounds of different phase composition // Scientific and technical journal «problems of physics, mathematics and technics». - 2020. - № 3 (44). – P.7-12. (In Russ.).
Marwan F. S. H. Al-Kamali1, Andrei A. Boika1, Hamdan A. S. Al-Shamiri. SiO2:CuO(Cu°) targets for depositing thin films of ion-beam spraying obtained by sol-gel method//Doklady of the National Academy of Sciences of Belarus, 2022, vol. 66, no. 3, рр. 348–355(In Russ.).
Dostanko A.P., Ageev O.A., Golosov D.A., Zavatskiy S.M., Zamburg E.G., Vakulov D.E., Vakulov Z.E. Electrical and optical properties of zinc oxide films deposited by ion-beam sputtering of an oxide target // Physics and technology of semiconductors - 2014. - V. 48, no. 9 - P. 1274-1279. (In Russ.).
Al-Kamali M. F. S. H., Boika A. A., Al-Shamiri H. A. S. SiO2: CuO (Cu°) targets for depositing thin films of ion-beam spraying obtained by sol-gel method. Doklady Natsional’noi akademii nauk Belarusi = Doklady of the National Academy of Sciences of Belarus, 2022, vol. 66, no. 3, pp. 348–355 (in Russian). https://doi.org/10.29235/1561-8323-2022-66-3-348-355
Abdulmajed E. Ibrahim., Neraan F. Abd-Aljabaar., Kasim H. Mahmood. Study the Effect of Irradiation by Gamma-Ray on the Optical Properties of the Thin Films// Journal of Kirkuk University– 2010 – Scientific Studies – Volume (5),№1–P. 54-64. (In arabic.).