TY - JOUR
T1 - Frenkel Defect-modulated Anti-thermal Quenching Luminescence in Lanthanide-doped Sc2(WO4)3
AU - Wei, Yang
AU - Pan, Yue
AU - Zhou, Enlong
AU - Yuan, Ze
AU - Song, Hao
AU - Wang, Yilin
AU - Zhou, Jie
AU - Rui, Jiahui
AU - Xu, Mengjiao
AU - Ning, Lixin
AU - Liu, Zhanning
AU - Wang, Hongyu
AU - Xie, Xiaoji
AU - Tang, Xiaobin
AU - Su, Haiquan
AU - Xing, Xianran
AU - Huang, Ling
N1 - Publisher Copyright:
© 2023 Wiley-VCH GmbH.
PY - 2023/7/3
Y1 - 2023/7/3
N2 - Although large amount of effort has been invested in combating thermal quenching that severely degrades the performance of luminescent materials particularly at high temperatures, not much affirmative progress has been realized. Herein, we demonstrate that the Frenkel defect formed via controlled annealing of Sc2(WO4)3:Ln (Ln=Yb, Er, Eu, Tb, Sm), can work as energy reservoir and back-transfer the stored excitation energy to Ln3+ upon heating. Therefore, except routine anti-thermal quenching, thermally enhanced 415-fold downshifting and 405-fold upconversion luminescence are even obtained in Sc2(WO4)3:Yb/Er, which has set a record of both the Yb3+-Er3+ energy transfer efficiency (>85 %) and the working temperature at 500 and 1073 K, respectively. Moreover, this design strategy is extendable to other hosts possessing Frenkel defect, and modulation of which directly determines whether enhanced or decreased luminescence can be obtained. This discovery has paved new avenues to reliable generation of high-temperature luminescence.
AB - Although large amount of effort has been invested in combating thermal quenching that severely degrades the performance of luminescent materials particularly at high temperatures, not much affirmative progress has been realized. Herein, we demonstrate that the Frenkel defect formed via controlled annealing of Sc2(WO4)3:Ln (Ln=Yb, Er, Eu, Tb, Sm), can work as energy reservoir and back-transfer the stored excitation energy to Ln3+ upon heating. Therefore, except routine anti-thermal quenching, thermally enhanced 415-fold downshifting and 405-fold upconversion luminescence are even obtained in Sc2(WO4)3:Yb/Er, which has set a record of both the Yb3+-Er3+ energy transfer efficiency (>85 %) and the working temperature at 500 and 1073 K, respectively. Moreover, this design strategy is extendable to other hosts possessing Frenkel defect, and modulation of which directly determines whether enhanced or decreased luminescence can be obtained. This discovery has paved new avenues to reliable generation of high-temperature luminescence.
KW - Downshifting Luminescence
KW - Energy Transfer
KW - Frenkel Defect
KW - Thermal Quenching
KW - Upconversion Luminescence
UR - http://www.scopus.com/inward/record.url?scp=85159907302&partnerID=8YFLogxK
U2 - 10.1002/anie.202303482
DO - 10.1002/anie.202303482
M3 - 文章
C2 - 37129053
AN - SCOPUS:85159907302
SN - 1433-7851
VL - 62
JO - Angewandte Chemie - International Edition
JF - Angewandte Chemie - International Edition
IS - 27
M1 - e202303482
ER -