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Infrared and Laser Engineering, Volume. 50, Issue 5, 20200287(2021)

Preparation and fluorescence characteristics of CdTe/CdS and CdTe/ZnS core-shell semiconductor quantum dots

Qing Chang1, Tianming Meng2, and Hengyu Tan2,3
Author Affiliations
  • 1College of Media Engineering, Communication University of Zhejiang, Hangzhou 310018, China
  • 2College of Electronic Engineering, Heilongjiang University, Harbin 150080, China
  • 3Beijing Institute of Metrology, Beijing 100029, China
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    Absorption spectra of the CdTe/CdS quantum dots

    Fig. 1. Absorption spectra of the CdTe/CdS quantum dots

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    Absorption spectra of the CdTe/ZnS quantum dots

    Fig. 2. Absorption spectra of the CdTe/ZnS quantum dots

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    Fluorescence spectrum of the CdTe/CdS and CdTe/ZnS quantum dots

    Fig. 3. Fluorescence spectrum of the CdTe/CdS and CdTe/ZnS quantum dots

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    • Table 1. Ten kinds of the core-shell structure quantum dots

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      Table 1. Ten kinds of the core-shell structure quantum dots

      Sample numberQuantum dotsSize/nmCore colorCladding time
      S1CdTe/CdS-13.2Orange30 min
      S2CdTe/CdS-23.3Orange1 h
      S3CdTe/CdS-33.4Orange2 h
      S4CdTe/CdS-43.0Yellow30 min
      S5CdTe/CdS-53.1Yellow1 h
      S6CdTe/CdS-62.6Green30 min
      S7CdTe/CdS-72.7Green1 h
      S8CdTe/CdS-82.8Green2 h
      S9CdTe/ZnS-93.5Orange30 min
      S10CdTe/ZnS-103.6Orange1 h
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    Qing Chang, Tianming Meng, Hengyu Tan. Preparation and fluorescence characteristics of CdTe/CdS and CdTe/ZnS core-shell semiconductor quantum dots[J]. Infrared and Laser Engineering, 2021, 50(5): 20200287

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    Paper Information

    Category: Lasers & Laser optics

    Received: Aug. 4, 2020

    Accepted: --

    Published Online: Aug. 13, 2021

    The Author Email:

    DOI:10.3788/IRLA20200287

    Topics

    laser devices and laser physics
    Lasers and Laser Optics
    Laser physics
    laser manufacturing
    Instrumentation, Measurement and Metrology