Preparation and optical properties of nanocrystalline and nanoporous Tb doped alumina and zinc aluminate

Autor:	Mirosław Zawadzki, J Wrzyszcz, Wieslaw Strek, Dariusz Hreniak
Rok vydání:	2001
Předmět:	Photoluminescence Materials science Nanoporous Mechanical Engineering Aluminate Doping Metals and Alloys chemistry.chemical_element Nanoparticle Mineralogy Zinc Nanocrystalline material chemistry.chemical_compound chemistry Chemical engineering Nanocrystal Mechanics of Materials Materials Chemistry
Zdroj:	Journal of Alloys and Compounds. :279-282
ISSN:	0925-8388
DOI:	10.1016/s0925-8388(01)01031-3
Popis:	Preparation and morphology of nanocrystalline and nanoporous ceramics composed of a network of alumina and zinc aluminate doped with Tb ions are reported. The pore size distributions are determined by nitrogen adsorption at 77 K. The emission spectra and lifetimes of Tb 3+ ions were measured. The effect of thermal conditions of preparation on emission properties was investigated. It is concluded that with increasing thermal heating the sizes of nanoparticles increase leading to the cluster formation of Tb 3+ ions.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::2aa9fd4e63bade87e3beb5542d8b8d86 https://doi.org/10.1016/s0925-8388(01)01031-3 Zobrazit plný text záznamu Full Text from ScienceDirect