Luminescent properties of Eu3+-activated Sr3B2SiO8: A red-emitting phosphor for white light-emitting diodes

作者：Wang, Linshui; Wang, Yuhua^*

来源：Journal of Luminescence, 2011, 131(7): 1479-1481.

DOI：10.1016/j.jlumin.2011.03.028

• Borosilicate
• Sr3B2SiO8:Eu3+
• Photoluminescence
• LED

Single-phased Sr3B2SiO8:Eu3+ phosphor was prepared by a solid-state method at 1020 degrees C. The luminescence spectra showed that Sr3B2SiO8:Eu3+ phosphor can be effectively excited by near ultraviolet light (393 nm) and blue light (464 nm). When excited at 393 or 464 nm Sr3B2SiO8:Eu3+ exhibited the main emission peaks at 611 and 620 nm, which resulted from the supersensitive D-5(0)-> F-7(2) transition of Eu3+. The luminescence intensity of Sr3B2SiO8:Eu3+ at 611 and 620 nm reached the maximum when the doping content of Eu3+ was 4.5 mol%. Its chromaticity coordinates (0.646, 0.354) were very close to the NTSC standard values (0.67, 0.33). Thus, Sr3B2SiO8:Eu3+ is considered to be an efficient red-emitting phosphor for long-UV InGaN-based light-emitting diodes.

• 出版日期2011-7
• 单位兰州大学