Significant Enhancement of the Upconversion Emission in Highly Er3+-Doped Nanoparticles at Cryogenic Temperatures

Tu, Langping1; Wu, Kefan2; Luo, Yongshi1; Wang, Enhui3; Yuan, Jun2; Zuo, Jing3; Zhou, Ding1; Li, Bin1; Zhou, Jiajia4; Jin, Dayong4,5; Zhang, Hong2

2023

10.1002/anie.202217100

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION   影响因子和分区

1433-7851

1521-3773

Relatively low efficiency is the bottleneck for the application of lanthanide-doped upconversion nanoparticles (UCNPs). The high-level doping strategy realized in recent years has not improved the efficiency as much as expected. It is argued that cross relaxation (CR) is not detrimental to upconversion. Here we combine theoretical simulation and spectroscopy to elucidate the role of CR in upconversion process of Er3+ highly doped (HD) UCNPs. It is found that if CR is purposively suppressed, upconversion efficiency can be significantly improved. Specifically, we demonstrate experimentally that inhibition of CR by introducing cryogenic environment (40 K) enhances upconversion emission by more than two orders of magnitude. This work not only elucidates the nature of CR and its non-negligible adverse effects, but also provides a new perspective for improving upconversion efficiency. The result can be directly applied to cryogenic imaging and wide range temperature sensing.

Cross Relaxation High-Level Doping Monte Carlo Simulations Temperature Upconversion Nanoparticle

SCI ; EI

英语

NI论文

通讯

Natural Science Foundation of China["12104179","62075217","11874355","11874354","61575194","22172154","62075215","51720105015"] ; Jilin Provincial Department of Science and Technology["20210101148JC","202512JC010475440"] ; Shenzhen Science and Technology Program["KQTD20170810110913065","20200925174735005"] ; Dutch Research Council (NWO)[731.015.206] ; EU[777682] ; ISPIC[675743]

Chemistry

Chemistry, Multidisciplinary

WOS:000912871400001

WILEY-V C H VERLAG GMBH

20230213371811

Efficiency ; Intelligent systems ; Monte Carlo methods ; Nanoparticles

Cryogenics:644.4 ; Artificial Intelligence:723.4 ; Nanotechnology:761 ; Production Engineering:913.1 ; Mathematical Statistics:922.2 ; Solid State Physics:933

CHEMISTRY

Web of Science

1.Chinese Acad Sci, Changchun Inst Opt Fine Mech & Phys, State Key Lab Luminescence & Applicat, Changchun 130033, Jilin, Peoples R China
2.Univ Amsterdam, Vant Hoff Inst Mol Sci, Sci Pk 904, NL-1098 XH Amsterdam, Netherlands
3.Jilin Univ, Coll Mat Sci & Engn, Minist Educ, Key Lab Automobile Mat, Changchun 130025, Peoples R China
4.Univ Technol Sydney, Fac Sci, Inst Biomed Mat & Devices IBMD, Sydney, NSW, Australia
5.Southern Univ Sci & Technol, Coll Engn, UTS SUSTech Joint Res Ctr Biomed Mat & Devices, Dept Biomed Engn, Shenzhen 518055, Guangdong, Peoples R China

Tu, Langping,Wu, Kefan,Luo, Yongshi,et al. Significant Enhancement of the Upconversion Emission in Highly Er3+-Doped Nanoparticles at Cryogenic Temperatures[J]. ANGEWANDTE CHEMIE-INTERNATIONAL EDITION,2023,62.

Tu, Langping.,Wu, Kefan.,Luo, Yongshi.,Wang, Enhui.,Yuan, Jun.,...&Zhang, Hong.(2023).Significant Enhancement of the Upconversion Emission in Highly Er3+-Doped Nanoparticles at Cryogenic Temperatures.ANGEWANDTE CHEMIE-INTERNATIONAL EDITION,62.

Tu, Langping,et al."Significant Enhancement of the Upconversion Emission in Highly Er3+-Doped Nanoparticles at Cryogenic Temperatures".ANGEWANDTE CHEMIE-INTERNATIONAL EDITION 62(2023).