TY - GEN
T1 - Preparation and optical properties of Sm2(WO4) 3 powders
AU - Zhang, Wen Yan
AU - Lu, Chun Hua
AU - Chen, Le
AU - Ni, Ya Ru
AU - Bao, Zhen Yu
AU - Xu, Zhong Zi
PY - 2011
Y1 - 2011
N2 - Sm2(WO4)3 crystals have been synthesized through liquid-phase reaction. The structure, morphology and optical properties of the products have been investigated by Fourier transform infrared spectroscopy (FTIR), X-ray diffractometer, SEM, and spectrofluorometer, respectively. The compound crystallized in the monoclinic hexagonal system, space group C2/c. Heat treat promoted the crystallization and regulated the micro-structure of Sm2(WO4)3. In the Sm 2(WO4)3 host, the WO4 2- group could transfer the energy of near-UV light to Sm3+ ions, emitting blue, green and red light at 429 nm ( 6P5/2→6H5/2), 453 nm ( 4G9/2→6H5/2), 495, 507 nm (4G7/2→6H5/2), 563 nm ( 4G5/2→6H5/2), 601 nm ( 4G5/2→6H7/2) and 649 nm ( 4G5/2→6H9/2), respectively. The ratio of blue, green and red light was appropriate to achieve white light. The Sm2(WO4)3 powders have potential to act as UV absorber for solar cell and may be helpful to the development of white light LED.
AB - Sm2(WO4)3 crystals have been synthesized through liquid-phase reaction. The structure, morphology and optical properties of the products have been investigated by Fourier transform infrared spectroscopy (FTIR), X-ray diffractometer, SEM, and spectrofluorometer, respectively. The compound crystallized in the monoclinic hexagonal system, space group C2/c. Heat treat promoted the crystallization and regulated the micro-structure of Sm2(WO4)3. In the Sm 2(WO4)3 host, the WO4 2- group could transfer the energy of near-UV light to Sm3+ ions, emitting blue, green and red light at 429 nm ( 6P5/2→6H5/2), 453 nm ( 4G9/2→6H5/2), 495, 507 nm (4G7/2→6H5/2), 563 nm ( 4G5/2→6H5/2), 601 nm ( 4G5/2→6H7/2) and 649 nm ( 4G5/2→6H9/2), respectively. The ratio of blue, green and red light was appropriate to achieve white light. The Sm2(WO4)3 powders have potential to act as UV absorber for solar cell and may be helpful to the development of white light LED.
KW - Infrared
KW - Liquid-phase reaction
KW - Optical properties
KW - Rare Earth Tungstates
UR - http://www.scopus.com/inward/record.url?scp=79957814859&partnerID=8YFLogxK
U2 - 10.4028/www.scientific.net/AMR.239-242.1964
DO - 10.4028/www.scientific.net/AMR.239-242.1964
M3 - 会议稿件
AN - SCOPUS:79957814859
SN - 9783037851234
T3 - Advanced Materials Research
SP - 1964
EP - 1967
BT - Advanced Materials
T2 - 2011 International Conference on Chemical Engineering and Advanced Materials, CEAM 2011
Y2 - 28 May 2011 through 30 May 2011
ER -