Acta Physica Sinica, Volume. 69, Issue 18, 187801-1(2020)

Advances in improved photoluminescence properties of all inorganic perovskite nanocrystals via metal-ion doping

Peng Yu1, Sheng Cao1,2、*, Ruo-Sheng Zeng1,2, Bing-Suo Zou1,2, and Jia-Long Zhao1,2、*
Author Affiliations
  • 1School of Physical Science and Technology, Guangxi University, Nanning 530004, China
  • 2Guangxi Key Laboratory of Processing for Non-Ferrous Metal and Featured Materials, Guangxi University, Nanning 530004, China
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    Figures & Tables(6)
    Morphology and crystal structure of nanocrystals (NCs): (a), (b) TEM images of CsPbCl3 and Cu doped CsPbCl3 NCs, the inset shows high resolution TEM images of a single NC[49]; (c) XRD patterns of CsPbCl3 and Cu doped CsPbCl3 NCs[49].
    Optical properties and crystal structure of metal ion doped CsPbCl3 NCs. (a) Absorption and PL spectra of CsPbCl3 and Cu-doped CsPbCl3 NCs[49]. (b) Schematic diagram of doping models for BaCl2 doped CsPbCl3[50]. PL spectra (c) and PL decay curves (d) of CsPbCl3 NCs before and after CdCl2 treatment. The inset in panel (c) shows the photos of untreated and treated samples under a UV lamp[52]. (e) Band structure and DOS of Ni2+:CsPbCl3 by DFT calculation. The horizontal dotted line represents the Fermi level[53]
    Optical properties and crystal structure of metal ion doped CsPbBr3 NCs: (a) Schematic illustration of Sb3+ doped CsPbBr3[57]; (b) PLQY vs. Ni2+ doping concentration of CsPbBr3 NCs[59]; (c) PLQY vs. Cu2+ doping concentration of CsPbBr3 NCs; electronic band structures before (d) and after (e) of Cu2+doped CsPbBr3 NCs by DFT calculations[60]; (f) PL spectra and PLQYs before and after Mg2+ doping of CsPbCl3 and CsPbBr3 NCs[51]
    Optical properties of metal ion doped CsPbI3 NCs: (a) PLQY of CsPbBrI2 NCs solution with different dopant concentration of Cu2+[62]; (b) PLQY values as a function of aged days for unsubstituted and Sr2+-substituted CsPbI3 NCs solutions[63]; (c) absorption and PL spectra of as-synthesized Ni (II) doped CsPbI3 NCs[64]; successive PL spectra of Sb3+ doped (d) and undoped (e) CsPbI3 NCs[65]; (f) the absorption and PL peak maxima and PLQYs of CsPbI3 NCs with different Zn-to-(Zn plus Pb) ratios[66]
    Optical properties of Mn2+ doped CsPbI3 NCs: (a) PL spectra and photographs under UV excitation of CsPbCl3 NCs before and after Mn2+ doping[67]; (b), (c) PL intensity and PL lifetime of Mn2+:CsPbCl3 at different temperature (340 and 360 K) with different time[69].
    Optical properties of CsPbX3 NCs doped with metal ions and Mn2+: (a) PLQY of Mn2+ doped CsPbX3 NCs vs. Ni/Pb ratios[72]; (b) PL spectrum and PL decay curve of Mn2+ doped CsPbX3 NCs after treatment with CdCl2 solution[73]; (c) digital photos of Mn2+ doped CsPbX3 NCs before and after treatment with CdCl2 solution under UV excitation with different purification times[73].
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    Peng Yu, Sheng Cao, Ruo-Sheng Zeng, Bing-Suo Zou, Jia-Long Zhao. Advances in improved photoluminescence properties of all inorganic perovskite nanocrystals via metal-ion doping[J]. Acta Physica Sinica, 2020, 69(18): 187801-1

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    Paper Information

    Received: May. 26, 2020

    Accepted: --

    Published Online: Jan. 5, 2021

    The Author Email: Zhao Jia-Long (zhaojl@ciomp.ac.cn)

    DOI:10.7498/aps.69.20200795

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