The trivalent dysprosium-doped yellow phosphor is an important component for realizing single-matrix white light.However,concentration quenching and thermal quenching greatly limit its application.White light phosphor...The trivalent dysprosium-doped yellow phosphor is an important component for realizing single-matrix white light.However,concentration quenching and thermal quenching greatly limit its application.White light phosphors,Li_(3)Ba_(2)Gd_(3)(WO_(4))_(8):Dy^(3+),Tm^(3+),with a stratified scheelite structure were prepared via a high-temperature solid-reaction.Calculated using the Kubelka–Munk model,the band gap of the host is 3.71 eV,which is suitable for near-ultraviolet white LEDs.展开更多
基金financially supported by the National Natural Science Foundation of China(No.51902354 and 22061020)the Science and Technology Program of Jiangxi Province(No.20192BBEL50017and 20202ACBL203002)+2 种基金the Characteristic Innovation Projects in Colleges and Universities in Guangdong Province(No.2021KTSCX128)theGDAS’Project of Science and Technology Development(No.2022GDASZH-2022010104 and 2022GDASZH-2022030604-04)the Special Found Project of Institute of Rare Metals,Guangdong Academy of Sciences(No.XYS2020-02).
文摘The trivalent dysprosium-doped yellow phosphor is an important component for realizing single-matrix white light.However,concentration quenching and thermal quenching greatly limit its application.White light phosphors,Li_(3)Ba_(2)Gd_(3)(WO_(4))_(8):Dy^(3+),Tm^(3+),with a stratified scheelite structure were prepared via a high-temperature solid-reaction.Calculated using the Kubelka–Munk model,the band gap of the host is 3.71 eV,which is suitable for near-ultraviolet white LEDs.
