Color-converted remote phosphor prototype of multiwavelength excitable borosilicate glass for white light-emitting diodes |
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| Authors: | Tian Hua Liu Ji-Wen Qiu Kun Song Jun Wang Da-Jian |
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| Affiliation: | a School of Materials Science and Engineering, Tianjin University, Tianjin 300072, China;b School of Materials Science and Engineering, Tianjin University of Technology, Tianjin 300384, China;c Institute of Materials Physics, Tianjin University of Technology, Tianjin 300384, China;d Tianjin Key Laboratory for Photoelectric Materials & Devices, Tianjin 300384, China |
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| Abstract: | We report a unique red light-emitting Eu-doped borosilicate glass to convert color for warm white light-emitting diodes. This glass can be excited by from 394 nm-peaked near ultraviolet light, 466 nm-peaked blue light, to 534 nm-peaked green light to emit desired red light with an excellent transmission in the wavelength range of 400-700 nm which makes this glass suitable for the color conversion without great cost of luminous power loss. In particular, assembling this glass to commercial white light-emitting diodes, the tested results show that the color rendering index is improved to 84 with a loss of luminous power by 12 percent at average, making this variety of glass promising for inorganic "remote-phosphor" color conversion. |
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| Keywords: | white light-emitting diodes (WLEDs) color rendering index remote phosphor borosilicate glass |
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