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Ultrafast and Non-linear Carrier Dynamics of Ni Doped ZnO

Jha, Shashank (2018) Ultrafast and Non-linear Carrier Dynamics of Ni Doped ZnO. Masters thesis, Indian Institute of Science Education and Research Kolkata.

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    Abstract

    The dynamics of charge carriers in semiconductors are of fundamental importance for their applications. In this dissertation, carrier dynamics of ZnO and Ni-doped ZnO nanoparticles is studied using the time-resolved pump-probe technique. ZnO nanoparticles' dynamics were found to be different from the doped one. Dynamics of the pristine sample indicated the presence of trap states which was dominating the dynamics of carriers. Dynamics for doped sample showed that carriers were able to be excited to the conduction band. Carrier Densities dependent studies suggest the dominance of trapped states.

    Item Type: Thesis (Masters)
    Additional Information: Supervisor: Dr. Kamaraju Natarajan
    Uncontrolled Keywords: Carrier Dynamics; Ni; Non-linear Carrier Dynamics; Semiconductors; ZnO
    Subjects: Q Science > QC Physics
    Divisions: Department of Physical Sciences
    Depositing User: IISER Kolkata Librarian
    Date Deposited: 28 Dec 2018 14:52
    Last Modified: 28 Dec 2018 14:53
    URI: http://eprints.iiserkol.ac.in/id/eprint/801

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