用于全光谱照明的高效蓝色荧光粉Sr₃B₂O₆ ：Bi³⁺ 发光性能

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中图分类号：0482.31 文献标识码：ADOI：10.37188/CJL.20250126 CSTR：32170.14.CJL.20250126

Abstract：Thefullspectrum lighting technologyaims toaddress thedeficiencies of existing white light-emittingdiodes（LEDs），such as high correlatedcolor temperature and insufficient color rendering index.The developmentof low-cost，eficient and stable non-rare-earth blue phosphors thatcan be excited by the near-ultraviolet has been an important research topic.In this study，a seriesofSi ： Bi3+ blue phosphors were successfully synthesized through the high-temperature solid-phase method.The experimentalresults show that when the optimal doping concentration of Bis+ is 0 02% ，this material exhibits blue light emission characteristics under the excitation of near-ultraviolet lightat365nm.Itsemission peak islocated at 450nm ，andthefullwidth athalfmaximumis69.4nm. The quantum yield of the blue phosphors is 42.6% ，and the emission intensity at 423 K can be maintained at 80.29 % at room temperature，showing excellent thermal stability.Based on the encapsulation of commercial green phosphor （Ba，Sr）2SiO4：Eu2+ and nitride red phosphor CaAlSiN 3 ： Eu²+，a full-spectrum white LED device was prepared.Under a driving current of 20mA ，it exhibits low correlated color temperature（CCT=5 684 K）and high color rendering index（ Ra =92.9）.The research shows that this blue phosphor has significant application potential in fullspectrumlighting technologyand providesasolid materialfoundation forthedevelopmentofrelatedtechnologies.

Keywords：full-spectrumillumination; Bi3+ doped;borate;blue phosphor

1引言

在全球能源转型与绿色发展的时代背景下，白光照明技术作为现代光电领域的核心技术之一，已深度渗透至室内环境营造、显示技术革新以及智能交通照明等关键领域[4]。（剩余21602字）