Optical properties of a Nd-doped SrBr2 crystal grown by the Bridgman technique

Autor:	Akihiro Yamaji, Yoshio Yanagida, Shunsuke Kurosawa, Yuui Yokota, Yasuhiro Shoji, Jan Pejchal, Kei Kamada, Akira Yoshikawa
Rok vydání:	2014
Předmět:	Diffraction Materials science Photon Doping Analytical chemistry Humidity Quantum yield Scintillator Condensed Matter Physics Inorganic Chemistry Crystal Crystallography Materials Chemistry Excitation
Zdroj:	Journal of Crystal Growth. 393:163-166
ISSN:	0022-0248
DOI:	10.1016/j.jcrysgro.2013.11.082
Popis:	We have investigated the optical properties of 1 mol% Nd-doped SrBr 2 crystal grown by the Bridgman technique for an X-ray scintillator application. We succeeded in obtaining a transparent crystal, whose X-ray diffraction was measured under dry condition because of its hygroscopic nature. Roughly, we estimated that 90% of this crystal dissolved within 300 min. under 25 °C and 65–70% humidity. Under excitation by 270 and 400 nm photons several emission peaks originating from 4 F 3/2 or 4 G i 1 → 4 I i 2 ( i 1=5/2 and 7/2 and i 2=13/2, 11/2, and 9/2) transitions of Nd 3+ were observed. 1 mol% Nd:SrBr 2 had a maximum quantum yield of approximately 45%. Additional emission peaks were observed under X-ray excitation.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::e39680a1577fe4e8f5fabf807ca6689d https://doi.org/10.1016/j.jcrysgro.2013.11.082 Zobrazit plný text záznamu Full Text from ScienceDirect