Rapid synthesis of Tb3+-doped gadolinium oxyhydroxide and oxide green phosphors and their biological behaviour

Wani, Saima and Majeed, Shafquat and Shivashankar, SA (2017) Rapid synthesis of Tb3+-doped gadolinium oxyhydroxide and oxide green phosphors and their biological behaviour. In: INDIAN JOURNAL OF CHEMISTRY SECTION A-INORGANIC BIO-INORGANIC PHYSICAL THEORETICAL & ANALYTICAL CHEMISTRY, 56 (12). pp. 1285-1292.

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Abstract

Green phosphors based on terbium doped GdOOH and Gd2O3 powders are prepared through a rapid microwave assisted solution based method using ethanol as a solvent and without using any surfactants. The as-prepared Tb3+:GdOOH powders are crystalline and show a flower-like morphology comprising many two-dimensional flake-like structures. The as-prepared powders show good luminescence properties under UV excitation and their conversion to Tb3+:Gd2O3 by annealing takes place at modest temperatures. A considerable increase in luminescence intensity is observed for the annealed powders, which is ascribed to phase change from oxyhydroxide to oxide as well as an increase in crystallinity as a result of annealing. Cytotoxicity studies reveal that the as-prepared powders show considerable toxicity towards the cells, whereas the annealed powders do not hamper the cell growth.

Item Type:	Journal Article
Publication:	INDIAN JOURNAL OF CHEMISTRY SECTION A-INORGANIC BIO-INORGANIC PHYSICAL THEORETICAL & ANALYTICAL CHEMISTRY
Publisher:	123456789/43260
Additional Information:	Copy right for this article belongs to the NATL INST SCIENCE COMMUNICATION-NISCAIR, DR K S KRISHNAN MARG, PUSA CAMPUS, NEW DELHI 110 012, INDIA
Department/Centre:	Division of Biological Sciences > Biochemistry
Date Deposited:	24 Jan 2018 10:26
Last Modified:	24 Jan 2018 10:26
URI:	http://eprints.iisc.ac.in/id/eprint/58867

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