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Bachelor's Thesis
Author of thesis: Aneta Opluštilová
Acad. year: 2025/2026
Supervisor: Ing. Pavel Klok
Reviewer: Ing. Zbyněk Dostál, Ph.D.
This bachelor thesis focuses on the development and implementation of an in situ optical setup for measuring photoluminescence during the deposition of semiconductor thin films in a vacuum environment. The analysis of these spectra is crucial for understanding crystallization mechanisms and detecting structural defects or recombination processes that emerge during film growth. These parameters fundamentally influence the future efficiency and stability of optoelectronic devices. The designed all-fiber setup enables reproducible monitoring of dynamic events during the deposition process in close proximity to the sample, without the need to disrupt the high vacuum or recalibrate the optical path. The functionality of the proposed setup was verified on the inorganic perovskite CsPbBr3, providing unique insight into crystallization kinetics and the evolution of optical properties during vacuum deposition. The acquired data thus represent valuable feedback for the future optimization of deposition processes and for improving the quality of the prepared thin films.
photoluminescence, in situ PL, PVD, optical fiber, perovskite, CsPbBr3
Date of defence
18.06.2026
Result of the defence
Defended (thesis was successfully defended)
Grading
A
Process of defence
Po otázkách oponenta bylo dále diskutováno: - Parametry spektra fotoluminiscence - maximum vs. těžiště píku - velikost zrn, množství defektů - omezení plynoucí z designu držáku vzorku - parazitní fotoluminiscence Studentka na otázky odpověděla.
Language of thesis
Czech
Faculty
Fakulta strojního inženýrství
Department
Institute of Physical Engineering
Study programme
Physical Engineering and Nanotechnology (B-FIN-P)
Composition of Committee
prof. Ing. Miroslav Kolíbal, Ph.D. (předseda) prof. RNDr. Tomáš Šikola, CSc. (místopředseda) prof. RNDr. Radim Chmelík, Ph.D. (člen) prof. RNDr. Petr Dub, CSc. (člen) prof. Mgr. Miroslav Černý, Ph.D. (člen) prof. Ing. Jan Čechal, Ph.D. (člen) prof. RNDr. Jiří Spousta, Ph.D. (člen) doc. Mgr. Vlastimil Křápek, Ph.D. (člen) doc. Ing. Miroslav Bartošík, Ph.D. (člen) doc. Ing. Jakub Zlámal, Ph.D. (člen) doc. Ing. Stanislav Průša, Ph.D. (člen) doc. Ing. Radek Kalousek, Ph.D. (člen)
Supervisor’s reportIng. Pavel Klok
Grade proposed by supervisor: A
Reviewer’s reportIng. Zbyněk Dostál, Ph.D.
Grade proposed by reviewer: A
Responsibility: Mgr. et Mgr. Hana Odstrčilová