具有石榴石結(jié)構(gòu)的高效近紅外熒光粉Y3(InxGa1-x)2Ga3O12 ： Cr3+ 發(fā)光性能
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關(guān)鍵詞：近紅外熒光粉；pc-LED；光譜調(diào)諧；發(fā)光材料中圖分類號：0482.31 文獻(xiàn)標(biāo)識碼：ADOI:10.37188/CJL.20240324 CSTR:32170.14.CJL.20240324
Luminescent PropertiesofEfficientNear-infrared Phosphors with Garnet Structure
WUBin,LIU Le,YAO Leqi,FUYibing* (JiangsuBreeOptronicsCo.,Ltd.,Nanjing211103,China) *CorrespondingAuthor,E-mail:ybfu_sbt@163.com
Abstract:Near-infrared phosphor-converted light-emiting diodes（NIR pc-LEDs） have demonstrated significant application potentialinthe fieldssuchas plant lightingandbioimaging.The luminescence efciencyand thermal stability of near-infrared phosphors directly determine deviceperformance，emphasizing the importance of developing highlyefficientandthermallystablenear-infraredphosphors.Inthisstudy,wesynthesizedaneficientnear-infrared phosphor, Y3InyGa5-x-yO12:xCr3+ ，with a garnet structure using a high-temperature solid-state method. The emission spectrum ranges from 600 nm to 1O0O nm. By adjusting the In3+ content，we achieved spectral tuning and attained an internal quantum efficiency of up to 95. 8% .Additionally，thephosphorexhibitsexcellent thermal stability.Experimental results show that at 423K，theluminescence intensity remainsat83. 6% ofthe room-temperaturevalue. Finaly，we fabricated high-effciency NIR pc-LEDdevices by combining this phosphor with commercial blue LEDs, achieving anear-infrared output power of 273.5 mWundera 350 mA current drive.These results demonstrate that this series of near-infrared phosphors and NIR pc-LED devices hold high application potential.
Key words:near-infrared phosphor；pc-LED；spectral tuning；luminescent materials
1引言
近紅外光(NIR)發(fā)光器件在植物照明、食品藥品檢測、人體健康檢測、健康照明等領(lǐng)域的應(yīng)用前景十分廣闊[1-3]。（剩余21379字）