This work demonstrates the temperature (18–312 K) impact on Tm3+ up-conversion luminescence in core-shell structured NaYF4:Tm3+, Yb3+ nanoparticles excited at 976 nm. As the temperature decreases from room temperature to 18 K, Tm3+ up-conversion luminescence bands intensities greatly increase, an average of 60-fold, emitting intense blue and ultraviolet radiation. Tm3+ up-conversion luminescence spectra measurements at different temperatures reveal that three thermal quenching mechanisms are responsible for observed variations in Tm3+ up-conversion luminescence spectra. These three quenching mechanisms are related to the excitation radiation absorption, Stark sublevel population, and energy transfer from Yb3+ to Tm3+.
AuzelF.. “Upconversion and Anti-Stokes Processes with f and d Ions in Solids”. Chem. Rev. 2004. 104(1): 139–173. 10.1021/cr020357g
2.
AebischerA.HostettlerM.HauserJ.KramerK., et al. “Structural and Spectroscopic Characterization of Active Sites in a Family of Light-Emitting Sodium Lanthanide Tetrafluorides”. Angew. Chem. Int. Ed. 2006. 45(17): 2802–2806. 10.1002/anie.200503966
3.
Renero-LecunaC.Martin-RodriguezR.ValienteR.GonzálezJ., et al. “Origin of the High Upconversion Green Luminescence Efficiency in β-NaYF4:2%Er3+, 20% Yb3+”. Chem. Mater. 2011. 23(15): 3442–3448. 10.1021/cm2004227
4.
LiZ.ParkW.ZorzettoG.LemaireJ.-S., et al. “Synthesis Protocols for δ-Doped NaYF4:Yb, Er”. Chem. Mater. 2014. 26(5): 1770–1778. 10.1021/cm4023425
5.
SuyverJ.F.GrimmJ.van VeenM.K.BinerD., et al. “Upconversion Spectroscopy and Properties of NaYF4 Doped with Er3+, Tm3+, and/or Yb3+”. J. Lumin. 2006. 117(1): 1–12. 10.1016/j.jlumin.2005.03.011
6.
KraemerK.W.BinerD.FreiG.GudelH.U., et al. “Hexagonal Sodium Yttrium Fluoride Based Green and Blue Emitting Upconversion Phosphors”. Chem. Mater. 2004. 16(7): 1244–1251. 10.1021/cm031124o
7.
WangL.LiY.. “Controlled Synthesis and Luminescence of Lanthanide Doped NaYF4 Nanocrystals”. Chem. Mater. 2007. 19(4): 727–734. 10.1021/cm061887m
8.
FischerS.JohnsonN.J.J.PichaandiJ.GoldschmidtJ.C., et al. “Upconverting Core-Shell Nanocrystals with High Quantum Yield Under Low Irradiance: On the Role of Isotropic and Thick Shells”. J. Appl. Phys. 2015. 118: 193105. 10.1063/1.4936119
9.
JohnsonN.J.J.KorinekA.DongC.van VeggelF.C.J.M.. “Self-Focusing by Ostwald Ripening: A Strategy for Layer-by-Layer Epitaxial Growth on Upconverting Nanocrystals”. J. Am. Chem. Soc. 2012. 134(27): 11068–11071. 10.1021/ja302717u
10.
XieX.GaoN.DengR.SunQ., et al. “Mechanistic Investigation of Photon Upconversion in Nd3+-Sensitized Core-Shell Nanoparticles”. J. Am. Chem. Soc. 2013. 135(34): 12608–12611. 10.1021/ja4075002
11.
PerveneckaJ.TeterovskisJ.VembrisA.VitolsK., et al. “An Innovative Approach to Photolithography for Optical Recording of High-Resolution Three-Dimensional Structures in a Negative SU8 Photoresist by Activation of Up-Conversion Luminescence in Yb3+ and Tm3+ Doped NaYF4 Nanoparticles”. Nano-Struct. Nano-Objects. 2023. 33: 100932. 10.1016/j.nanoso.2022.100932
12.
GrubeJ.. “Up-Conversion Luminescence Processes in NaLaF4 Doped with Tm3+ and Yb3+ and Dependence on Tm3+ Concentration and Temperature”. Appl. Spectrosc. 2022. 76(2): 189–198. 10.1177/00037028211045424
13.
ParisiD.VeronesiS.VolpiA.GemmiM., et al. “Spectroscopy and Laser Test Emission in Tm3+: BaYLuF8 Single Crystal”. J. Phys. D: Appl. Phys. 2014. 47(2): 025101. 10.1088/0022-3727/47/2/025101
14.
HuS.LiuY.WuX.TangZ., et al. “Remarkable Redshift of Upconversion Luminescence and Anti-Ferromagnetic Coupling in NaLuF4:Yb3+/Tm3+/Gd3+/Sm3+ Bifunctional Microcrystals”. J. Rare Earths. 2016. 34(2): 166–173. 10.1016/S1002-0721(16)60010-8
15.
LiC.DongB.LiS.SongC.. “Er3+ Yb3+ Codoped Silicate Glass for Optical Temperature Sensor”. Chem. Phys. Lett. 2007. 443(4–6): 426–429. 10.1016/j.cplett.2007.06.081
16.
MottN.F.GurneyR.W.FowlerR.H.KapitzaP., et al.Electronic Processes in Ionic Crystals. Oxford: Clarendon Press, 1948.
17.
SzczepanskiF.BayartA.KatelnikovasA.BlachJ.F., et al. “Luminescence and Up-Conversion Properties in La2Ti2O7:Eu3+, Er3+ Oxides Under UV and NIR Radiations Towards a Two-Color Sensor”. J. Alloys Compd. 2020. 826: 154157. 10.1016/j.jallcom.2020.154157
18.
MorrisonA.P.ConsidineL.WalshS.CorderoN., et al. “Photoluminescence Investigation of the Carrier Confining Properties of Multiquantum Barriers”. IEEE J. Quantum Electron. 1997. 33(8): 1338–1344. 10.1109/3.605556
19.
HendersonB.ImbuschG.F.. “Electronic Centers in a Vibrating Crystalline Environment”. In: Optical Spectroscopy of Inorganic Solids. Oxford: Clarendon Press, 1989. Chap. 5, P. 249.
20.
KörnerJ.HeinJ.KahleM.LiebetrauH., et al. “Temperature Dependent Measurement of Absorption and Emission Cross Sections for Various Yb3+ Doped Laser Materials”. Proceedings of the SPIE 8080, Diode-Pumped High Energy and High Power Lasers; ELI: Ultrarelativistic Laser-Matter Interactions and Petawatt Photonics; and HiPER: The European Pathway to Laser Energy. 2011. 8080: 808003. 10.1117/12.887410
21.
ZhangL.XueT.HeD.GuzikM., et al. “Influence of Stark Splitting Levels on the Lasing Performance of Yb3+ in Phosphate and Fluorophosphate Glasses”. Opt. Express. 2015. 23(2): 1505–1511. 10.1364/OE.23.001505
22.
SimpungweM.LubobyaC.NkondeS.. “Design of Yb3+ Doped Laser for Industrial Application”. Intern. J. Optoelectr. Eng. 2021. 10(1): 1–8. 10.5923/j.ijoe.20211001.01
23.
SugiyamaA.KatsijrayamaM.AnzaiY.. “Developments of Fluoride Crystals Doped with Yb Ions for Ultra Short Pulse Lasers”. In: Proceedingsof the 6th Symposium on Advanced Photon Research, Japan Atomic Energy Research Institute (JAERI), Kashiwa, Chiba, Japan:4–5 November 2004. Pp. 129–132. 10.11484/JAERI-Conf-2005-004
