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Low-Dimensional Material Devices for...

Thiruraman, Jothi Priyanka.

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Low-Dimensional Material Devices for Atomic Defect Engineering, Ionic and Molecular Transport.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Low-Dimensional Material Devices for Atomic Defect Engineering, Ionic and Molecular Transport./
Author:	Thiruraman, Jothi Priyanka.
Published:	Ann Arbor : ProQuest Dissertations & Theses, : 2021,
Description:	224 p.
Notes:	Source: Dissertations Abstracts International, Volume: 82-12, Section: B.
Contained By:	Dissertations Abstracts International82-12B.
Subject:	Nanoscience. -
Online resource:	https://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=28489685
ISBN:	9798738619496

Low-Dimensional Material Devices for Atomic Defect Engineering, Ionic and Molecular Transport.
Thiruraman, Jothi Priyanka.

Low-Dimensional Material Devices for Atomic Defect Engineering, Ionic and Molecular Transport. - Ann Arbor : ProQuest Dissertations & Theses, 2021 - 224 p.

Source: Dissertations Abstracts International, Volume: 82-12, Section: B.

Thesis (Ph.D.)--University of Pennsylvania, 2021.

This item must not be sold to any third party vendors.

With the advancement of nanofabrication techniques and the growth and synthesis of novel low-dimensional materials, such graphene and transition metal dichalcogenides, it is possible to probe the fundamental principles of ion and molecule transport down to the single-atom scale. Understanding these ionic and atomic interactions during molecular transport at an atomic level play a pivotal role in developing solid-state aquaporins or bio- mimicking artificial membrane proteins channels. Apart from biological processes in living cells, ionic transport plays a vital role in membrane-based technologies such as water purification, desalination, separation techniques and energy harvesting. This thesis focuses on developing low-dimensional devices and creating sub-nanometer pores or point defects for exploring molecular and ionic transport phenomena at an atomic scale. Additionally, defect engineering of such point defects also has potential quantum applications, including quantum sensing and computation. First, I discuss the fabrication process of these low-dimensional devices, including 2D materials growth, transfer with the help of nanofabrication techniques and various characterization modes. Further, in this regime of angstrom-scale confinements, I investigate ionic transport phenomenon in monolayer 2D materials with single sub-nanometer pore and an ensemble of sub-nanometer pores and report experimental results showing strong deviation from continuum physics. Macroscopic quantities such as bulk ion concentration for these angstrom-size systems become insufficient to explain features of the measured ion conductance and its scaling with experimental parameters such as ion concentration and surface charge of the pore (edge atoms).

ISBN: 9798738619496Subjects--Topical Terms:

587832
Nanoscience.
Subjects--Index Terms:

2D Materials

Low-Dimensional Material Devices for Atomic Defect Engineering, Ionic and Molecular Transport.
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245 1 0 $a Low-Dimensional Material Devices for Atomic Defect Engineering, Ionic and Molecular Transport.
260 1 $a Ann Arbor : $b ProQuest Dissertations & Theses, $c 2021
300 $a 224 p.
500 $a Source: Dissertations Abstracts International, Volume: 82-12, Section: B.
500 $a Advisor: Drndic, Marija.
502 $a Thesis (Ph.D.)--University of Pennsylvania, 2021.
506 $a This item must not be sold to any third party vendors.
520 $a With the advancement of nanofabrication techniques and the growth and synthesis of novel low-dimensional materials, such graphene and transition metal dichalcogenides, it is possible to probe the fundamental principles of ion and molecule transport down to the single-atom scale. Understanding these ionic and atomic interactions during molecular transport at an atomic level play a pivotal role in developing solid-state aquaporins or bio- mimicking artificial membrane proteins channels. Apart from biological processes in living cells, ionic transport plays a vital role in membrane-based technologies such as water purification, desalination, separation techniques and energy harvesting. This thesis focuses on developing low-dimensional devices and creating sub-nanometer pores or point defects for exploring molecular and ionic transport phenomena at an atomic scale. Additionally, defect engineering of such point defects also has potential quantum applications, including quantum sensing and computation. First, I discuss the fabrication process of these low-dimensional devices, including 2D materials growth, transfer with the help of nanofabrication techniques and various characterization modes. Further, in this regime of angstrom-scale confinements, I investigate ionic transport phenomenon in monolayer 2D materials with single sub-nanometer pore and an ensemble of sub-nanometer pores and report experimental results showing strong deviation from continuum physics. Macroscopic quantities such as bulk ion concentration for these angstrom-size systems become insufficient to explain features of the measured ion conductance and its scaling with experimental parameters such as ion concentration and surface charge of the pore (edge atoms).
590 $a School code: 0175.
650 4 $a Nanoscience. $3 587832
650 4 $a Condensed matter physics. $3 3173567
650 4 $a Materials science. $3 543314
653 $a 2D Materials
653 $a Angstrom-size pore
653 $a Defect engineering
653 $a Low-dimensional materials
653 $a Nanofluidics
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690 $a 0611
690 $a 0794
710 2 $a University of Pennsylvania. $b Electrical and Systems Engineering. $3 3169654
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791 $a Ph.D.
792 $a 2021
793 $a English
856 4 0 $u https://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=28489685