• Photonics Research
  • Vol. 9, Issue 11, 11002182 (2021)
Shunfa Gong1, Ruirui Wu1, Sen Yang1, Lifang Wu1, Minmin Zhang1, Qiuju Han2, and Wenzhi Wu1、*
Author Affiliations
  • 1School of Electronic Engineering, Heilongjiang University, Harbin 150080, China
  • 2College of Arts and Sciences, Northeast Agricultural University, Harbin 150030, China
  • show less
    (a) Crystal structure of BSCSC MCs and the pictures of a series of sample under daylight and UV lamp. (b) XRD patterns of Cs2SnCl6, Bi-, Sb-, and Bi-and-Sb-doped Cs2SnCl6. (c) Optical absorption and PL spectra of Cs2SnCl6, Bi-, Sb-, and Bi-and-Sb-doped Cs2SnCl6. (d) XPS spectra for 12%10%BSCSC MCs. (e) SEM and EDS mappings of Sb, Bi, Cs, Cl, and Sn elements. (f) EDS of 12%10%BSCSC MCs. The inset shows the atomic ratios for various elements.
    Fig. 1. (a) Crystal structure of BSCSC MCs and the pictures of a series of sample under daylight and UV lamp. (b) XRD patterns of Cs2SnCl6, Bi-, Sb-, and Bi-and-Sb-doped Cs2SnCl6. (c) Optical absorption and PL spectra of Cs2SnCl6, Bi-, Sb-, and Bi-and-Sb-doped Cs2SnCl6. (d) XPS spectra for 12%10%BSCSC MCs. (e) SEM and EDS mappings of Sb, Bi, Cs, Cl, and Sn elements. (f) EDS of 12%10%BSCSC MCs. The inset shows the atomic ratios for various elements.
    PL spectra of BSCSC MCs with different (a) Bi and (b) Sb feeding contents. (c) PL spectra of 12%10%BSCSC MCs at 405 nm CW laser excitation under different pump fluences. (d) The linear fitting between PL intensity and pump fluence.
    Fig. 2. PL spectra of BSCSC MCs with different (a) Bi and (b) Sb feeding contents. (c) PL spectra of 12%10%BSCSC MCs at 405 nm CW laser excitation under different pump fluences. (d) The linear fitting between PL intensity and pump fluence.
    (a) PL intensity of 12%10%BSCSC MCs at 80–380 K. (b) Pseudocolor map of PL intensity at 80–380 K. (c) The PL integral intensity of 12%10%BSCSC MCs at various temperatures. (d) The peak position with the change of temperature.
    Fig. 3. (a) PL intensity of 12%10%BSCSC MCs at 80–380 K. (b) Pseudocolor map of PL intensity at 80–380 K. (c) The PL integral intensity of 12%10%BSCSC MCs at various temperatures. (d) The peak position with the change of temperature.
    (a) TRPL decay curves of 9%Biy% (y=0, 5, 10, 20) Sb codoped Cs2SnCl6 at 290 K. (b) TRPL decay curves of x% (x=0, 6, 9, 12) Bi10%Sb codoped Cs2SnCl6 at 290 K. (c), (d) TRPL spectra of 12%10%BSCSC MCs from 150 to 900 ns and 3.5 to 15 μs at 290 K.
    Fig. 4. (a) TRPL decay curves of 9%Biy% (y=0, 5, 10, 20) Sb codoped Cs2SnCl6 at 290 K. (b) TRPL decay curves of x% (x=0, 6, 9, 12) Bi10%Sb codoped Cs2SnCl6 at 290 K. (c), (d) TRPL spectra of 12%10%BSCSC MCs from 150 to 900 ns and 3.5 to 15 μs at 290 K.
    Temperature-dependent TRPL decay curves of 12%10%BSCSC MCs from 190 to 400 K at the wavelength of (a) 485 nm and (b) 650 nm. (c) PL lifetime with temperature increasing. (d) Schematic energy diagram for BSCSC MCs. (e) The lifetime of 485 nm emission under 290–390 K. (f) SA and SR values of 485 nm emission.
    Fig. 5. Temperature-dependent TRPL decay curves of 12%10%BSCSC MCs from 190 to 400 K at the wavelength of (a) 485 nm and (b) 650 nm. (c) PL lifetime with temperature increasing. (d) Schematic energy diagram for BSCSC MCs. (e) The lifetime of 485 nm emission under 290–390 K. (f) SA and SR values of 485 nm emission.
    (a) Electrically driven PL of white-emission LED based on Bi-and-Sb-codoped Cs2SnCl6 powder, and the insets are the working LED and PL intensity versus time. (b) The PL spectra of LED with current at 100–340 mA; the inset is the corresponding CIE chromaticity coordinate.
    Fig. 6. (a) Electrically driven PL of white-emission LED based on Bi-and-Sb-codoped Cs2SnCl6 powder, and the insets are the working LED and PL intensity versus time. (b) The PL spectra of LED with current at 100–340 mA; the inset is the corresponding CIE chromaticity coordinate.
    MaterialsProbe Range (K)SRMax(%K1)Reference
    Gd3Al5O12:Mn120–5702.08[42]
    Lu3Al5O12:Mn303–3833.75[41]
    Y2O3:Ho/Mg2TiO4:Mn298–3730.9[43]
    BaLaMgNbO6:Dy,Mn230–4702.43[14]
    Cs2SnCl6:Bi,Sb290–3903.82This work
    Table 1. Several Thermometric Materials and Their Relative Sensitivity
    Copy Citation Text
    Shunfa Gong, Ruirui Wu, Sen Yang, Lifang Wu, Minmin Zhang, Qiuju Han, Wenzhi Wu. Tuning the luminous properties and optical thermometry of Cs2SnCl6 phosphor microcrystals via Bi and Sb codoping[J]. Photonics Research, 2021, 9(11): 11002182
    Download Citation
    Category: Optical and Photonic Materials
    Received: May. 19, 2021
    Accepted: Aug. 27, 2021
    Published Online: Oct. 14, 2021
    The Author Email: Wenzhi Wu (wuwenzhi@hlju.edu.cn)