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Preparation, characterization, and luminescence properties of BiLaWO6:Eu3+ red-emitting phosphors for w-LEDs.

Abstract

Eu3+-doped bismuth lanthanum tungstate BiLaWO6 phosphors were synthesized for the first time by a conventional solid-state reaction at 1273K. By powder X-ray diffraction (XRD), the crystal structure of the phosphor was verified, which revealed its single-phase structure. Under the 467nm wavelength excitation, the Eu3+-doped BiLaWO6 phosphor powders showed red emission (617nm) that was ascribed to the 5D0→7F2 transitions of Eu3+. The effects of concentration on luminescence properties indicated that the optimal doping concentration was x=0.50mol. The thermal stability by the emission intensities at various temperatures was verified, and the activation energy (Ea) was approximately 0.29eV. The luminescence lifetime was analyzed by the decay curve. The chromaticity coordinates of BiLaWO6:0.50Eu3+ were x=0.650, y=0.347, which had a high color purity at 99.2%. The phosphors had potential application for white light-emitting diodes.

Authors+Show Affiliations

College of Chemistry & Pharmacy, Northwest A&F University, Yangling, Shaanxi 712100, PR China; Hunan Provincial Key Laboratory of Xiangnan Rare-Precious Metals Compounds Research and Application, Chenzhou, Hunan 423043, PR China; College of Chemistry & Biology and Environmental Engineering, Xiangnan University, Chenzhou, Hunan 423043, PR China.Hunan Provincial Key Laboratory of Xiangnan Rare-Precious Metals Compounds Research and Application, Chenzhou, Hunan 423043, PR China; College of Chemistry & Biology and Environmental Engineering, Xiangnan University, Chenzhou, Hunan 423043, PR China. Electronic address: ddhbyjs@126.com.College of Chemistry & Pharmacy, Northwest A&F University, Yangling, Shaanxi 712100, PR China.College of Chemistry & Pharmacy, Northwest A&F University, Yangling, Shaanxi 712100, PR China.College of Chemistry & Pharmacy, Northwest A&F University, Yangling, Shaanxi 712100, PR China. Electronic address: genghuiling@nwsuaf.edu.cn.College of Chemistry & Pharmacy, Northwest A&F University, Yangling, Shaanxi 712100, PR China.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

31425860

Citation

Zhang, Lixia, et al. "Preparation, Characterization, and Luminescence Properties of BiLaWO6:Eu3+ Red-emitting Phosphors for W-LEDs." Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy, vol. 224, 2019, p. 117454.
Zhang L, Deng B, Shu S, et al. Preparation, characterization, and luminescence properties of BiLaWO6:Eu3+ red-emitting phosphors for w-LEDs. Spectrochim Acta A Mol Biomol Spectrosc. 2019;224:117454.
Zhang, L., Deng, B., Shu, S., Wang, Y., Geng, H., & Yu, R. (2019). Preparation, characterization, and luminescence properties of BiLaWO6:Eu3+ red-emitting phosphors for w-LEDs. Spectrochimica Acta. Part A, Molecular and Biomolecular Spectroscopy, 224, p. 117454. doi:10.1016/j.saa.2019.117454.
Zhang L, et al. Preparation, Characterization, and Luminescence Properties of BiLaWO6:Eu3+ Red-emitting Phosphors for W-LEDs. Spectrochim Acta A Mol Biomol Spectrosc. 2019 Aug 6;224:117454. PubMed PMID: 31425860.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Preparation, characterization, and luminescence properties of BiLaWO6:Eu3+ red-emitting phosphors for w-LEDs. AU - Zhang,Lixia, AU - Deng,Bin, AU - Shu,Shuang, AU - Wang,Yu, AU - Geng,Huiling, AU - Yu,Ruijin, Y1 - 2019/08/06/ PY - 2019/05/07/received PY - 2019/07/31/revised PY - 2019/08/05/accepted PY - 2019/8/20/pubmed PY - 2019/8/20/medline PY - 2019/8/20/entrez KW - BiLaWO(6):Eu(3+) KW - Phosphor KW - Red-emitting material KW - W-LED SP - 117454 EP - 117454 JF - Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy JO - Spectrochim Acta A Mol Biomol Spectrosc VL - 224 N2 - Eu3+-doped bismuth lanthanum tungstate BiLaWO6 phosphors were synthesized for the first time by a conventional solid-state reaction at 1273K. By powder X-ray diffraction (XRD), the crystal structure of the phosphor was verified, which revealed its single-phase structure. Under the 467nm wavelength excitation, the Eu3+-doped BiLaWO6 phosphor powders showed red emission (617nm) that was ascribed to the 5D0→7F2 transitions of Eu3+. The effects of concentration on luminescence properties indicated that the optimal doping concentration was x=0.50mol. The thermal stability by the emission intensities at various temperatures was verified, and the activation energy (Ea) was approximately 0.29eV. The luminescence lifetime was analyzed by the decay curve. The chromaticity coordinates of BiLaWO6:0.50Eu3+ were x=0.650, y=0.347, which had a high color purity at 99.2%. The phosphors had potential application for white light-emitting diodes. SN - 1873-3557 UR - https://www.unboundmedicine.com/medline/citation/31425860/Preparation,_characterization,_and_luminescence_properties_of_BiLaWO6:Eu3+_red-emitting_phosphors_for_w-LEDs L2 - https://linkinghub.elsevier.com/retrieve/pii/S1386-1425(19)30844-3 DB - PRIME DP - Unbound Medicine ER -