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Synthesis and Optical Properties of Cu-In-Zn-S (CIZS) Quaternary QDs

Das, Subhra Kanti (2018) Synthesis and Optical Properties of Cu-In-Zn-S (CIZS) Quaternary QDs. Masters thesis, Indian Institute of Science Education and Research Kolkata.

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    Abstract

    The Cu-In-Zn-S (CIZS) quarternary quantum dots (QDs) has many fascinating characteristics including long lived emission, high PLQY, large Stokes’ shift. In the first phase of this dissertation, the time and work has been dedicated to understand the synthesis and photophysical properties of the reported QDs. A new scheme has been proposed for synthesizing CIZS/ZnS Core/Shell QDs. Synthesizing and calibrating the QD properties by changing the reaction temperature and molar ratio of precursors etc. were done. Finally the photophysical properties of the QDs were explored. The shelling of CIZS QD was done and the photophysical behavior of the core-shell CIZS QDs were investigated. Tri-exponential PL decay for both core and core-shell have been measured. The maximum PLQY of the core-shell QD is found to be 0.41.

    Item Type: Thesis (Masters)
    Additional Information: Supervisor: Dr. Prasun K. Mandal
    Uncontrolled Keywords: CIZS; Cu-In-Zn-S Quantum Dots; Electronic Spectroscopy; Quantum Dots; Quarternary Quantum Dots
    Subjects: Q Science > QD Chemistry
    Divisions: Department of Chemical Sciences
    Depositing User: IISER Kolkata Librarian
    Date Deposited: 28 Dec 2018 10:35
    Last Modified: 28 Dec 2018 10:35
    URI: http://eprints.iiserkol.ac.in/id/eprint/791

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