Photochromic effects in sillenite single crystals

• Autorzy: Żmija J. , Małachowski M.
• Języki publikacji: EN

Abstrakty

EN

Purpose: The aim of this work was to fabricate the doped with transition or rare earth metals the single crystals such as Bi12GeO20 (BGO) and Bi12SiO20 (BSO), showing the photochromic effect and to study this effect. Findings: To the study results we can count the development of the mentioned single crystal technology and the measurement set as well as the interpretation of the obtained absorption spectra. Research limitations/implications: Among others we have found that the photochromic effect in these materials is connected with the change in doped atom charge state by one electron ie. Mn+4 → Mn+5 and Cr+3 → Cr+4. We also propose the schematic presentation of the energetic levels obtained on the basis of the above remarks. Originality/value: The authors show, for the first time, the photochromic effect in doped with transition or rare earth metals the BGO and BSO single crystals and developed the model explaining this effect. The similar studies were performed on the BTMO (T=Ti, M=Pb) mixed crystals. The applications are connected with the areas of scientific studies of some single crystals as well as using them in particular devices.

Słowa kluczowe

EN

single crystals; sillenites; photochromic effect; optical absorption

PL

monokryształy; efekt fotochromowy; absorpcja światła

• Wydawca: International OCSCO World Press
• Czasopismo: Archives of Materials Science and Engineering
• Rocznik: 2008
• Tom: Vol. 33, nr 2
• Strony: 101--106
• Opis fizyczny: Bibliogr. 16 poz.

Twórcy

autor

Żmija J.

autor

Małachowski M.

• Institute of Applied Physics, Military University of Technology, ul. Kaliskiego 2, 00-908 Warszawa, Poland,

Bibliografia

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