TAILIEUCHUNG - Uv light induced thermoluminescence of rare earth doped nanomaterials Y2O3:Eu3+, Gd2O3:Eu3+ and Gd2O3:Er3+

This method allows production of fine white powder at low temperature with high efficiency. XRD has been used to determine the structure of the prepared nanopowders. The obtained materials exhibit sufficient sensibility to UV radiation and may be useful in UV light measurements. | Communications in Physics, Vol. 28, No. 1 (2018), pp. 75-85 DOI: UV LIGHT INDUCED THERMOLUMINESCENCE OF RARE EARTH DOPED NANOMATERIALS Y2 O3 :Eu3+ , Gd2 O3 :Eu3+ AND Gd2 O3 :Er3+ NGUYEN THI QUY HAI1 , TRAN KIM ANH1 , VU THI THAI HA2 , PHAM THI MINH CHAU1 , HO VAN TUYEN1 , NGUYEN TRONG THANH2 AND LE QUOC MINH1,2 1 Institute for Research and Development of High Technology, Duy Tan University, Da Nang, Vietnam 2 Institute of Materials Science, Vietnam Academy of Science and Technology, Hanoi, Vietnam, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam † E-mail: nguyenquyhaivie@ Received 16 January 2018 Accepted for publication 21 February 2018 Published 26 March 2018 Abstract. Thermoluminescence properties of ultraviolet irradiated Y2 O3 :Eu3+ , Gd2 O3 :Eu3+ and Gd2 O3 :Er3+ nanophosphors have been reported. The materials were synthesized by gel-combustion method with Disodium Ethylenediamine Tetraacetic acid (EDTA-Na2 ) as organic agent. This method allows production of fine white powder at low temperature with high efficiency. XRD has been used to determine the structure of the prepared nanopowders. The obtained materials exhibit sufficient sensibility to UV radiation and may be useful in UV light measurements. Keywords: combustion, EDTA-Na2 , nanomaterials, Y2 O3 :Eu3+ , Gd2 O3 :Eu3+ and Gd2 O3 :Er UV light, thermoluminescence. 3+ , Classification numbers: , , . I. INTRODUCTION Ultraviolet (UV) is an electromagnetic radiation within the wavelength range from 200 nm to 400 nm. UV radiation has various applications in medicine, biology and industry. However, it can damage living tissue, cause painful burns, destroy the membrane of eyes, and even cause skin cancer, when too much UV exposure exist. There were different methods for detection and measurement of UV radiation, most of them usually require a series of annealing operations and the thermoluminescence (TL) output depends on the prior treatments. .

• Vật lý
• Communications in Physics
• Uv light induced thermoluminescence
• Rare earth doped nanomaterials
• Y2O3Eu3+
• Gd2O3Eu3+ and Gd2O3Er3+
• Disodium Ethylenediamine Tetraacetic acid
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