Multifunctional Eu3+- and Er3+/Yb3+-doped GdVO4 nanoparticles synthesized by reverse micelle method

Gavrilović, Tamara V.; Jovanović, Dragana J.; Lojpur, Vesna; Dramićanin, Miroslav D.

doi:10.1038/srep04209

Cited by 204 publications

(106 citation statements)

References 39 publications

Supporting

Mentioning

100

Contrasting

Order By: Relevance

“…As a comparison, the reported highest S a and S r is only 0.015 K −1 and 1.1% K −1 , respectively, for the thermometric materials based on TCL of Er 3+ . [ 28,29 ] Moreover, the monitored peaks of Pr 3+ (≈604 nm) and Tb 3+ (≈544 nm) are well separated, which endows the Tb 3+ /Pr 3+ :NaGd(MoO 4 ) 2 thermometric material a good signal discriminability for temperature detection.…”

Section: Resultsmentioning

confidence: 96%

A Novel Optical Thermometry Strategy Based on Diverse Thermal Response from Two Intervalence Charge Transfer States

Gao

Huang

Lin

et al. 2016

Adv Funct Materials

485

206

View full text Add to dashboard Cite

3139wileyonlinelibrary.com discriminable emission peaks as the monitored signals, and to suppress absolute and relative detecting errors, high absolute and relative temperature sensitivities are required.In this aspect, conventional investigations focus on the thermally coupled level pairs (TCL) of rare earth ions (for example, 2 H 11/2 and 4 S 3/2 level for Er 3+). [7][8][9][10][11][12][13][14][15] Typically, with variation of temperature, population in the upper and lower levels of TCL would change oppositely, inducing variation in FIR of these two levels. For this type of temperature sensing materials, a narrow energy gap between TCL would favor the absolute temperature sensitivity ( S a ), but be harmful to the relative temperature sensitivity ( S r ). In addition, the narrow energy gap would induce overlap of the two monitored emission peaks, resulting in an inferior signal discriminability. [ 9,12 ] In contract, a wide energy gap between TCL would benefi t S r and the signal discriminability, but weaken the thermal coupling of TCL, leading to a low S a . [ 13,15 ] Generally speaking, in the TCL-based optical thermometry, simultaneously promoting S a , S r and signal discriminability is almost impossible.Other kinds of thermometry strategy have also been introduced into the optical thermometric technique. For example, the phonon assisted energy transfer between Eu 3+ and Tb 3+ ions has been utilized in optical thermometry. [16][17][18][19] However, this kind of thermometry is usually applicable only at temperature below 320 K. Nanocomposites containing quantum dots and rare earth ions have also been applied as thermometric materials relying on the different thermal quenching behaviors of quantum dots and rare earth ions. [ 20,21 ] However, FIR of these materials is easily infl uenced by other environment parameters (such as pH value), which would introduce error in temperature detection. Apparently, searching for new thermometry strategy to develop high-performance luminescent temperature sensing materials is highly desired.In previous studies, the metal-to-metal intervalence charge transfer (IVCT) processes between lanthanide (Pr 3+ or Tb 3+ ) and d 0 electron confi gured transition metal ions (Ti 4+ , V 5+ , Nb 5+ , Mo 6+ , or W 6+ ) in oxide crystals have been demonstrated to be an effective pathway to excite the corresponding lanthanide ions. [22][23][24][25][26] Moreover, IVCT can provide an effi cient quenching A Novel Optical Thermometry Strategy Based on Diverse Thermal Response from Two Intervalence Charge Transfer StatesYan Gao , Feng Huang , * Hang Lin , Jiangcong Zhou , Ju Xu , and Yuansheng Wang * In this work, a novel thermometry strategy based on the diversity in thermal quenching behavior of two intervalence charge transfer (IVCT) states in oxide crystals is proposed, which provides a promising route to design selfreferencing optical temperature sensing material with superior temperature sensitivity and signal discriminability.

show abstract

Section: Resultsmentioning

confidence: 96%

A Novel Optical Thermometry Strategy Based on Diverse Thermal Response from Two Intervalence Charge Transfer States

Gao

Huang

Lin

et al. 2016

Adv Funct Materials

485

206

View full text Add to dashboard Cite

show abstract

“…This work constitutes a comparative study of the three Nd:NPs that have already been used for in vivo imaging purposes along with four other Nd 3þ doped systems (NaYF 4 :Nd 3þ , KYF 4 :Nd 3þ , GdVO 4 :Nd 3þ , and Y 3 Al 5 O 12 :Nd 3þ -hereafter Nd:YAG-) whose synthesis, basic characterization, and potential use as infrared biolabels have been reported and proposed. [37][38][39][40] The relevant role played by host in determining the fluorescent properties of Nd:NPs is discussed and, based on the comparative spectroscopic characterization, the ability of the different systems for in vivo imaging experiments will be discussed.…”

Section: Introductionmentioning

confidence: 99%

Neodymium-doped nanoparticles for infrared fluorescence bioimaging: The role of the host

Rosal

Pérez‐Delgado

Misiak

et al. 2015

Journal of Applied Physics

Self Cite

107

View full text Add to dashboard Cite

The spectroscopic properties of different infrared-emitting neodymium-doped nanoparticles (LaF 3 :Nd 3þ , SrF 2 :Nd 3þ , NaGdF 4 : Nd 3þ , NaYF 4 : Nd 3þ , KYF 4 : Nd 3þ , GdVO 4 : Nd 3þ , and Nd:YAG) have been systematically analyzed. A comparison of the spectral shapes of both emission and absorption spectra is presented, from which the relevant role played by the host matrix is evidenced. The lack of a "universal" optimum system for infrared bioimaging is discussed, as the specific bioimaging application and the experimental setup for infrared imaging determine the neodymiumdoped nanoparticle to be preferentially used in each case. V C 2015 AIP Publishing LLC.

show abstract

“…Nanophenomena due to size confinement in lanthanide nanoparticles may occur through changes of ion-phonon coupling, which influence the dynamics of 4f-4f transitions, whereas the static energy levels of the 4f states experience negligible impact. In fact, the majority of reported size-reduction effects are the consequences of induced structure distortion and surface defects that affect the local environment (site symmetry) surrounding the lanthanide ions [39]. Here, the results show a strong relationship between the crystallite size of Mg 2 TiO 4 nanoparticles and their structural (lattice parameter) and luminescence (emission intensity and lifetime) characteristics.…”

Section: Sm 3 þ Doped Mg 2 Tiomentioning

confidence: 71%

Effect of annealing on luminescence of Eu3+- and Sm3+-doped Mg2TiO4 nanoparticles

Medić

Antić

Đorđević

et al. 2016

Journal of Luminescence

Self Cite

View full text Add to dashboard Cite

Multifunctional Eu3+- and Er3+/Yb3+-doped GdVO4 nanoparticles synthesized by reverse micelle method

Cited by 204 publications

References 39 publications

A Novel Optical Thermometry Strategy Based on Diverse Thermal Response from Two Intervalence Charge Transfer States

A Novel Optical Thermometry Strategy Based on Diverse Thermal Response from Two Intervalence Charge Transfer States

Neodymium-doped nanoparticles for infrared fluorescence bioimaging: The role of the host

Effect of annealing on luminescence of Eu3+- and Sm3+-doped Mg2TiO4 nanoparticles

Contact Info

Product

Resources

About