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Information × Registration Number 0225U004915, (0125U002525) , R & D reports Title Innovative solar cells. popup.stage_title Створення гетероструктур на основі плівок CIGS на гнучкій підкладці і встановлення їх взаємозв’язку з їх компонентним складом, поверхневою морфологією і шириною забороненої зони. Head Kondratenko Serhii V., Доктор фізико-математичних наук Registration Date 22-12-2025 Organization Taras Shevchenko National University of Kyiv popup.description1 Investigation of the structure, optical, and photoelectric properties of heterostructures based on CIGS films and the determination of their correlation with the compositional content, surface morphology, and band gap width. popup.description2 The morphology, composition, and crystalline quality of polycrystalline Cu(In,Ga)S,Se (CIGS) thin films prepared by magnetron sputtering and its modification as a result of annealing with short light pulses were studied. It was shown that annealing improves the morphology and crystalline quality of the films. The optical, electrical, and photovoltaic properties of heterostructures with CIGS/ZnS interfaces were studied in comparison with the pristine CIGS/CdS, which are promising for the solar cell design. Details of the structure of energy bands were established, in particular, the width of the band gap of the CIGS material and the height of the barriers at the CIGS/ZnS and CIGS/CdS interfaces. It was shown that CIGS/ZnS structures manifest lower photovoltaic sensitivity compared to CIGS/CdS, although the sensitivity spectrum is the same. It is assumed that the cause of the lower sensitivity is defects, the presence of which was established using Raman and admittance spectroscopy. Methods for reducing the number of defects were suggested. Product Description popup.authors Kopyshinsky Оlexander V. Olexander I. Datsenko Oleksiy Nazarov Grynko Dmytro O. popup.nrat_date 2025-12-22 Close