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Ghaden_thesis_1.pdf (17.24 MB)
ETD Abstract Container
Abstract Header
Synthesis and AB-Initio Simulations of Colloidal PBS Nanosheets
Author Info
Bhandari, Ghadendra B
Permalink:
http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1403519605
Abstract Details
Year and Degree
2014, Master of Science (MS), Bowling Green State University, Physics.
Abstract
Colloidal quantum dots have been appearing as an remarkable substance for optoelec- tronic devices due to their tunable optical character emanating from quantum confinement. Electric conductivity through quantum dot film is always obstructed by the accompany of spacing ligands among them because of their insulating property. Application of nanosheets can significantly reduce these obstructions, while still keep the tunability of quantum confinement. It is anticipated that because of the better charge carrier mobility, an optoelectronic devices based on nanosheets will have improved performance . The present project describes the successfull synthesis of two-dimensional PbS nanosheets through oriented attachments of PbS nanocrystals. The reaction temperature was altered to tune the thickness of the nanosheets. Their bandgaps were measured by optical absorption and emission spectroscopy. The energy gap of the nanosheets depends on thickness as 1/L, exhibiting pure quasi-two-dimensional semiconductor systems with absolute one-dimensional confinement. This dependence is also confirmed by the ab-intio calculation using density functional theory.
Committee
Alexey Zayak (Advisor)
Liangfeng Sun (Advisor)
Farida Selim (Committee Member)
Pages
66 p.
Subject Headings
Physics
Keywords
PbS Nanosheets, Two-Dimensional nanoparticles, One-Dimensional Quantum Confinement, Oriented Attachment
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Citations
Bhandari, G. B. (2014).
Synthesis and AB-Initio Simulations of Colloidal PBS Nanosheets
[Master's thesis, Bowling Green State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1403519605
APA Style (7th edition)
Bhandari, Ghadendra.
Synthesis and AB-Initio Simulations of Colloidal PBS Nanosheets.
2014. Bowling Green State University, Master's thesis.
OhioLINK Electronic Theses and Dissertations Center
, http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1403519605.
MLA Style (8th edition)
Bhandari, Ghadendra. "Synthesis and AB-Initio Simulations of Colloidal PBS Nanosheets." Master's thesis, Bowling Green State University, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1403519605
Chicago Manual of Style (17th edition)
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Document number:
bgsu1403519605
Download Count:
324
Copyright Info
© 2014, some rights reserved.
Synthesis and AB-Initio Simulations of Colloidal PBS Nanosheets by Ghadendra B Bhandari is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported License. Based on a work at etd.ohiolink.edu.
This open access ETD is published by Bowling Green State University and OhioLINK.