東華大學圖書館 |

Language: English

Help

回圖書館首頁

手機版館藏查詢

Back

Switch To: Labeled | MARC Mode | ISBD

Nanoscale Mechanical and Electrical ...

Mucientes, Marta.

Linked to FindBook

Google Book

Amazon

博客來

Nanoscale Mechanical and Electrical Properties of Low-Dimensional Structures.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Nanoscale Mechanical and Electrical Properties of Low-Dimensional Structures./
Author:	Mucientes, Marta.
Published:	Ann Arbor : ProQuest Dissertations & Theses, : 2021,
Description:	191 p.
Notes:	Source: Dissertations Abstracts International, Volume: 82-09, Section: B.
Contained By:	Dissertations Abstracts International82-09B.
Subject:	Physics. -
Online resource:	https://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=28393989
ISBN:	9798569992843

Nanoscale Mechanical and Electrical Properties of Low-Dimensional Structures.
Mucientes, Marta.

Nanoscale Mechanical and Electrical Properties of Low-Dimensional Structures. - Ann Arbor : ProQuest Dissertations & Theses, 2021 - 191 p.

Source: Dissertations Abstracts International, Volume: 82-09, Section: B.

Thesis (Ph.D.)--Lancaster University (United Kingdom), 2021.

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

In this thesis, we mainly study the mechanical, electrical and electromechanical properties of low-dimensional structures of advanced materials, in particular two-dimensional (2D) materials and compound semiconductor (CS) structures and devices. Given the scarcity of methods for direct nano-mapping of physical properties of complex three-dimensional (3D) multilayer CS and 2D materials heterostructures, we adapted and developed suitable optical methods and functional scanning probe microscopies (SPM) approaches based in atomic force microscopy (AFM). These allowed us to successfully investigate the behaviour of one- and two dimensional (1D and 2D) free oscillating structures, such as AFM cantilevers, tuning forks (TF), Si3N4 membranes and graphene drums using the optical laser Doppler vibrometry (LDV) and dynamic AFM modes, finding governing relations of the dynamic behaviour in real-life systems and comparing these with modelling. In addition to the existing ultrasonic SPM, such as force modulation and ultrasonic force microscopy (FMM and UFM), we developed a new method called modulation ultrasonic force microscopy (M-UFM), which allows for nonlinear local excitation and the probing of membrane vibrations. Furthermore, we probe mechanical, electrical and thermal properties of supported layers and heterostructures of diverse transition metal dichalcogenides (TMDCs) and franckeite, understanding their intrinsic surface and subsurface nanostructure. In the final part of this thesis, we explored the feasibility of combining nano-sectioning via Beam Exit Cross-sectional Polishing (BEXP) and the material sensitive SPM analysis for the investigation of defects in CS structures, such as multiple quantum wells (MQW) and nanowires (NWs), and 2D material heterostructures. We applied this methodology to investigate the propagation of material defects, such as antiphase domains in CS, and their effects on the morphology, nanomechanics and electric properties in MQW structures, and to directly observe reverse piezoelectric domains inside individual GaN NWs.

ISBN: 9798569992843Subjects--Topical Terms:

516296
Physics.
Subjects--Index Terms:

Laser Doppler vibrometry

Nanoscale Mechanical and Electrical Properties of Low-Dimensional Structures.
LDR:03201nmm a2200337 4500 001 2281598
005 20210920103554.5
008 220723s2021 ||||||||||||||||| ||eng d
020 $a 9798569992843
035 $a (MiAaPQ)AAI28393989
035 $a (MiAaPQ)Lancaster_150801
035 $a AAI28393989
040 $a MiAaPQ $c MiAaPQ
100 1 $a Mucientes, Marta. $3 3560271
245 1 0 $a Nanoscale Mechanical and Electrical Properties of Low-Dimensional Structures.
260 1 $a Ann Arbor : $b ProQuest Dissertations & Theses, $c 2021
300 $a 191 p.
500 $a Source: Dissertations Abstracts International, Volume: 82-09, Section: B.
502 $a Thesis (Ph.D.)--Lancaster University (United Kingdom), 2021.
506 $a This item must not be sold to any third party vendors.
520 $a In this thesis, we mainly study the mechanical, electrical and electromechanical properties of low-dimensional structures of advanced materials, in particular two-dimensional (2D) materials and compound semiconductor (CS) structures and devices. Given the scarcity of methods for direct nano-mapping of physical properties of complex three-dimensional (3D) multilayer CS and 2D materials heterostructures, we adapted and developed suitable optical methods and functional scanning probe microscopies (SPM) approaches based in atomic force microscopy (AFM). These allowed us to successfully investigate the behaviour of one- and two dimensional (1D and 2D) free oscillating structures, such as AFM cantilevers, tuning forks (TF), Si3N4 membranes and graphene drums using the optical laser Doppler vibrometry (LDV) and dynamic AFM modes, finding governing relations of the dynamic behaviour in real-life systems and comparing these with modelling. In addition to the existing ultrasonic SPM, such as force modulation and ultrasonic force microscopy (FMM and UFM), we developed a new method called modulation ultrasonic force microscopy (M-UFM), which allows for nonlinear local excitation and the probing of membrane vibrations. Furthermore, we probe mechanical, electrical and thermal properties of supported layers and heterostructures of diverse transition metal dichalcogenides (TMDCs) and franckeite, understanding their intrinsic surface and subsurface nanostructure. In the final part of this thesis, we explored the feasibility of combining nano-sectioning via Beam Exit Cross-sectional Polishing (BEXP) and the material sensitive SPM analysis for the investigation of defects in CS structures, such as multiple quantum wells (MQW) and nanowires (NWs), and 2D material heterostructures. We applied this methodology to investigate the propagation of material defects, such as antiphase domains in CS, and their effects on the morphology, nanomechanics and electric properties in MQW structures, and to directly observe reverse piezoelectric domains inside individual GaN NWs.
590 $a School code: 0416.
650 4 $a Physics. $3 516296
650 4 $a Nanoscience. $3 587832
653 $a Laser Doppler vibrometry
653 $a Transition metal dichalcogenides
653 $a Multiple quantum wells
690 $a 0565
690 $a 0605
710 2 $a Lancaster University (United Kingdom). $3 1294170
773 0 $t Dissertations Abstracts International $g 82-09B.
790 $a 0416
791 $a Ph.D.
792 $a 2021
793 $a English
856 4 0 $u https://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=28393989