Comparing the performance of Nd3+-doped LiBaPO4 phosphors as optical temperature sensors within the first biological window exploiting luminescence intensity ratio and bandwidth methods

被引：30

作者：

Laia, Andre Scheidegger ^{[1
,2
,3
]}

Hora, Daniela A. ^{[4
]}

Rezende, Marcos V. dos S. ^{[4
]}

Xing, Yutao ^{[5
]}

Rodrigues Jr, Jose Joatan ^{[1
,2
]}

Maciel, Glauco S. ^{[5
]}

Alencar, Marcio A. R. C. ^{[1
,2
]}

机构：

[1] Univ Fed Sergipe UFS, Dept Fis, BR-49100000 Sao Cristovao, SE, Brazil

[2] Univ Fed Sergipe UFS, Lab Corrosao & Nanotecnol LCNT, BR-49100000 Sao Cristovao, SE, Brazil

[3] Univ Estado Para, Dept Ciencias Nat, Grp Pesquisa Fis & Ensino Fis GPFEF, BR-68502100 Maraba, PA, Brazil

[4] Univ Fed Sergipe, Grp Nanomat Func GNF, Dept Fis, BR-49100000 Sao Cristovao, SE, Brazil

[5] Univ Fed Fluminense, Inst Fis, BR-24210346 Niteroi, RJ, Brazil

来源：

JOURNAL OF LUMINESCENCE | 2020年 / 227卷

关键词：

Optical thermometry; Fluorescence intensity ratio; Bandwidth; Biological window I; ENERGY-LEVELS; QUANTUM DOTS; LINE SHIFT; NANOPARTICLES; ND3+; SENSITIVITY; EMISSION; NANOCRYSTALS; ND-3+; IONS;

D O I：

10.1016/j.jlumin.2020.117524

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Neodymium doped LiBaPO4 phosphors were studied as luminescent thermometers for operation within the first biological window (BW I). Thermal sensing by luminescence intensity ratio (LIR) and bandwidth (FWHM and Delta 2 lambda(eff)) methods were used and their performances were compared. In addition, a new sensing method is proposed based on the width of the emission line, measured at 90% of the maximum intensity (Delta lambda(90%)). The obtained results demonstrate that this material can have different sensitivity values, depending on the used methodology, and exhibits one of the highest sensitivity (0.55% K-1) reported for materials doped with neodymium, operating within the BW I, based on a single emission band ((F3/2 -> I9/2)-F-4-I-4).

引用

页数：9

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