Spectroscopic properties of ZnWO4:Fe single crystals期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

Spectroscopic properties of ZnWO4:Fe single crystals

Affiliation:	1. School of Metallurgy and Materials Engineering, Iran University of Science and Technology (IUST), Narmak, Tehran 16846-13114, Islamic Republic of Iran;2. Department of Materials and Metallurgical Engineering, Ferdowsi University of Mashhad (FUM), Mashhad 91775-1111, Islamic Republic of Iran;3. Department of Nanotechnology, School of New Technologies, Iran University of Science and Technology (IUST), Narmak, Tehran 16846-13114, Islamic Republic of Iran;4. Department of Materials Engineering, Faculty of Engineering, Malayer University, Malayer 65719-95863, Islamic Republic of Iran

Abstract:	The incorporation and charge of iron in ZnWO₄:Fecrystals were investigated by absorption spectrometry. The UV bands at 350 nm and the visible band at 460 nm have been found to be related to Fe³⁺ and Fe²⁺ ions respectively. Both ions are mainly in substitutional Zn positions. The infrared absorption at 3445 cm⁻¹ is related to Fe³⁺ OH complexes. The OH⁻ ions compensating the excess charge of Fe³⁺ are probably situated in interstitial positions.

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