dc.contributor.advisor | Kasırga, Talip Serkan | |
dc.contributor.author | Ramezani, Mehdi | |
dc.date.accessioned | 2017-12-11T14:00:29Z | |
dc.date.available | 2017-12-11T14:00:29Z | |
dc.date.copyright | 2017-11 | |
dc.date.issued | 2017-11 | |
dc.date.submitted | 2017-12-10 | |
dc.identifier.uri | http://hdl.handle.net/11693/35664 | |
dc.description | Cataloged from PDF version of article. | en_US |
dc.description | Thesis (M.S.): Bilkent University, Department of Materials Science and Nanotechnology, İhsan Doğramacı Bilkent University, 2017. | en_US |
dc.description | Includes bibliographical references (leaves 54-60). | en_US |
dc.description.abstract | Last two decades have seen a phenomenal shift of the dimensionality paradigm
in materials processing, from zero-dimensional nanoparticles and quantum dots
to one-dimensional nanowires and nanotubes, to two-dimensional materials. Each
above-mentioned category of the nanomaterial can be manipulated exclusively,
and mentored to drive special properties. However, for each of them, it may
take time to discover their true potential and proper application in contemporary
technology.
The emergence of graphene in 2004 triggered the scienti c community to turn
their vision toward investigation of two-dimensional materials. The impact of
the discovery of graphene with its rare characteristics was such huge that no
subject had been studied in the past as much as two-dimensional materials have.
Nowadays, there are brand new two-dimensional materials with more intriguing
properties which no one could imagine. However, our current technology had
developed based on bulk material, and it is not ready yet to accept the use of
nanomaterials. Recent advances in nanoscale characterization opened up new
opportunities for nanomaterials to be investigated so delicately.
The other face of the discovery of nanomaterial is the need for ingenious fabrication
method. Integration of electronic and optoelectronic circuits in con ned
space is one of the top paid objectives in research and development. The goal is
providing a faster computational speed, lower energy consumption, and reducing
the size of these systems. Although this is a long-term plan, it is not farfetched
once we connect the dots and think outside the box.Herein, we address synthesis, characterization, and manipulation of various
two-dimensional materials. A thorough report on chemical vapor deposition of
molybdenum disul de and tungsten diselenide is provided in this study. Besides
this two material we encountered some anomalies in the behavior of an unknown
two-dimensional material which we synthesized it in our lab. The next step is
to establish novel methods in order to fabricate electronic devices supporting
atomically-thin structures. We could formulate a straightforward method to assemble
atomically thin
ake of material on transmission electron microscope grid,
compatible for microscopy of thin materials and adjustable for various characterization
method including Raman spectroscopy, and atomic force microscopy.
Last but not least, we introduced a novel method to induce mechanical strain
on the two-dimensional
ake. This method allows a dynamic scanning electron
microscopy of the strained structure, which could be utilized for versatile applications.
It worth to mention that, a fabrication process is mainly based on
mentoring wet-transfer, focused ion beam, and electron beam lithography. | en_US |
dc.description.statementofresponsibility | by Mehdi Ramezani. | en_US |
dc.format.extent | xvi, 60 leaves : illustrations (some color) ; 30 cm | en_US |
dc.language.iso | English | en_US |
dc.rights | info:eu-repo/semantics/openAccess | en_US |
dc.subject | Two-Dimensional Material | en_US |
dc.subject | Chemical Vapor Deposition | en_US |
dc.subject | Physical Vapor Deposition | en_US |
dc.subject | Electron Beam Lithography | en_US |
dc.subject | Focused Ion Beam | en_US |
dc.subject | Wet-Transfer and Manipulation Methods | en_US |
dc.subject | Uniaxial-Strain Gauge | en_US |
dc.title | Synthesis and characterization of Van Der Waals heterostructures, and nanofabrication of electronic devices based on two-dimensional materials | en_US |
dc.title.alternative | Van Der Waals heteroyapılarının sentezi, karakterizasyonu ve iki-boyutlu malzeme temelli elektronik aygıtların üretimi | en_US |
dc.type | Thesis | en_US |
dc.department | Graduate Program in Materials Science and Nanotechnology | en_US |
dc.publisher | Bilkent University | en_US |
dc.description.degree | M.S. | en_US |
dc.identifier.itemid | B157053 | |
dc.embargo.release | 2020-12-10 | |