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Загальна кількість знайдених документів : 5
Представлено документи з 1 до 5
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Grynko D. O. Injection Spectroscopy of Deep Traps in Nanostructured Films of Cadmium Sulfide [Електронний ресурс] / D. O. Grynko, A. S. Opanasyuk, O. P. Dimitriev, P. S. Smertenko, O. M. Fedoryak, N. V. Tirkusova, Yu. V. Noskov, N. A. Ogurtsov, A. A. Pud // Proceedings of the International Conference Nanomaterials: Applications and Properties. - 2013. - Vol. 2, no. 1. - С. 01NTF41-01NTF41. - Режим доступу: http://nbuv.gov.ua/UJRN/princon_2013_2_1_43
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Dimitriev O. A. Piezoelectric Response of Cadmium Sulfide Nanorod Crystals Grown from Gas Phase by Using Ag and Au Catalyst [Електронний ресурс] / O. A. Dimitriev, D. A. Grynko, O. M. Fedoryak, M. Kratzer, O. B. Smirnov, P. S. Smertenko // Proceedings of the International Conference Nanomaterials: Applications and Properties. - 2014. - Vol. 3, no. 2. - С. 02NEA07-02NEA07. - Режим доступу: http://nbuv.gov.ua/UJRN/princon_2014_3_2_43
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Dimitriev O. P. Macroscopic versus microscopic photovoltaic response of heterojunctions based on mechanochemically prepared nanopowders of kesterite and n-type semiconductors [Електронний ресурс] / O. P. Dimitriev, D. O. Grynko, A. M. Fedoryak, T. P. Doroshenko, M. Kratzer, C. Teichert, Yu. V. Noskov, N. A. Ogurtsov, A. A. Pud, P., Balaz M., Tesinsky M. Balaz // Semiconductor physics, quantum electronics & optoelectronics. - 2017. - Vol. 20, № 4. - С. 418-423. - Режим доступу: http://nbuv.gov.ua/UJRN/MSMW_2017_20_4_6 Mechanochemically prepared nanopowder of selenium-free kesterite Cu2ZnSnS4 (CZTS) in combination with n-type semiconductors, i.e., CdS, ZnO and TiO2, was tested in planar and bulk-heterojunction solar cells. The samples have been studied by macroscopic current-voltage (I - V) measurements and Kelvin-probe atomic-force microscopy (KPFM). KPFM images taken under light illumination showed the distribution of the potential across the surface, with negative potential on the n-type semiconductor domains and positive potential on the CZTS domains, which indicated charge separation at the interface of the counterparts. The best result was found for the CdS-CZTS composition, which showed a potential difference between the domains up to 250 mV. These results were compared with the planar heterojunctions of CdS/CZTS and TiO2/CZTS, where CZTS nanopowder was pressed/deposited directly onto the surface of films of the corresponding n-type semiconductors. Again, I - V characteristics showed that cells based on CdS/CZTS heterojunctions have the best performance, with a photovoltage up to 200 mV and photocurrent densities up to 0,1 mA/cm<^>2. However, the carrier generation was found to occur mainly in the CdS semiconductor, while CZTS showed no photo-response and served as the hole-transporting layer only. It is concluded that sensitization of the kesterite powder obtained by mechanochemical method is necessary to improve the performance of the corresponding solar cells.
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Bogoslovskaya A. B. Luminescent analysis of the quality of CdS nanocrystals depending on technological parameters [Електронний ресурс] / A. B. Bogoslovskaya, D. O. Grynko, E. G. Bortchagovsky, O. I. Gudymenko // Semiconductor physics, quantum electronics & optoelectronics. - 2019. - Vol. 22, № 2. - С. 231-236. - Режим доступу: http://nbuv.gov.ua/UJRN/MSMW_2019_22_2_16
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Bogoslovskaya A. B. Piezo-mechanical impedance of nanosized CdS single crystal [Електронний ресурс] / A. B. Bogoslovskaya, O. M. Khalimovskyy, D. O. Grynko // Semiconductor physics, quantum electronics & optoelectronics. - 2019. - Vol. 22, № 4. - С. 479-485. - Режим доступу: http://nbuv.gov.ua/UJRN/MSMW_2019_22_4_18
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