Photoluminescence of Mn2+ Centers in Chalcohalide Glasses

Beitrag in einer Fachzeitschrift


Details zur Publikation

Autor(en): Yan Q, Liu Y, Chen G, Da N, Wondraczek L
Zeitschrift: Journal of the American Ceramic Society
Jahr der Veröffentlichung: 2011
Band: 94
Heftnummer: 3
Seitenbereich: 660-662
ISSN: 0002-7820


Abstract

We report on photoluminescence from Mn2+-doped chalcohalide glasses of the GeS$_2$--Ga$_2$S$_3$--CsCl system. Upon blue excitation at 447 nm, a broad emission band occurs in the green spectral range from 500 to 600 nm, indicating the presence of tetrahedrally coordinated Mn2+ species. When the Mn2+-concentration is increased up to 2 mol%, an increasingly intense secondary emission band evolves at about 610--660 nm. Meanwhile, the intensity of the green band decreases gradually and shifts toward the red, resulting a very flatten luminescence from 500 to 750 nm, which provides a promising white light emitting source. As for the origin of this unique luminescence behavior of Mn2+, it is proposed that the ligand coordination number of Mn2+ in the present chalcohalide glasses experiences a partial change from tetrahedral to octahedral coordination.


FAU-Autoren / FAU-Herausgeber

Da, Ning
Professur für Werkstoffwissenschaften (Glas und Keramik)
Wondraczek, Lothar Prof. Dr.-Ing.
Professur für Werkstoffwissenschaften (Glas und Keramik)


Zusätzliche Organisationseinheit(en)
Exzellenz-Cluster Engineering of Advanced Materials


Autor(en) der externen Einrichtung(en)
East China University of Science and Technology (ECUST)


Zitierweisen

APA:
Yan, Q., Liu, Y., Chen, G., Da, N., & Wondraczek, L. (2011). Photoluminescence of Mn2+ Centers in Chalcohalide Glasses. Journal of the American Ceramic Society, 94(3), 660-662. https://dx.doi.org/10.1111/j.1551-2916.2010.04356.x

MLA:
Yan, Qiqi, et al. "Photoluminescence of Mn2+ Centers in Chalcohalide Glasses." Journal of the American Ceramic Society 94.3 (2011): 660-662.

BibTeX: 

Zuletzt aktualisiert 2019-14-03 um 06:08