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Investigating Single Molecule Physic...

University of California, Irvine., Physics.

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Investigating Single Molecule Physics with the Scanning Tunneling Microscope.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Investigating Single Molecule Physics with the Scanning Tunneling Microscope./
Author:	Patel, Calvin Jay.
Published:	Ann Arbor : ProQuest Dissertations & Theses, : 2017,
Description:	500 p.
Notes:	Source: Dissertation Abstracts International, Volume: 79-02(E), Section: B.
Contained By:	Dissertation Abstracts International79-02B(E).
Subject:	Condensed matter physics. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=10624230
ISBN:	9780355413564

Investigating Single Molecule Physics with the Scanning Tunneling Microscope.
Patel, Calvin Jay.

Investigating Single Molecule Physics with the Scanning Tunneling Microscope. - Ann Arbor : ProQuest Dissertations & Theses, 2017 - 500 p.

Source: Dissertation Abstracts International, Volume: 79-02(E), Section: B.

Thesis (Ph.D.)--University of California, Irvine, 2017.

Scanning tunneling microscopy (STM) has given the scientific community a method to view, characterize, and manipulate the world at the atomic scale. Thirty years after the Nobel Prize in Physics was awarded for its invention, the remarkable instrument is still being used to deepen our understanding of physical and chemical processes. Tantamount to this has been the development of new techniques to expand its capabilities allowing STMs to answer increasingly more difficult scientific questions. This dissertation describes three technological thrusts in expanding the STMs capabilities in studying physics at the single molecule level.

ISBN: 9780355413564Subjects--Topical Terms:

3173567
Condensed matter physics.

Investigating Single Molecule Physics with the Scanning Tunneling Microscope.
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100 1 $a Patel, Calvin Jay. $3 3350535
245 1 0 $a Investigating Single Molecule Physics with the Scanning Tunneling Microscope.
260 1 $a Ann Arbor : $b ProQuest Dissertations & Theses, $c 2017
300 $a 500 p.
500 $a Source: Dissertation Abstracts International, Volume: 79-02(E), Section: B.
500 $a Adviser: Wilson Ho.
502 $a Thesis (Ph.D.)--University of California, Irvine, 2017.
520 $a Scanning tunneling microscopy (STM) has given the scientific community a method to view, characterize, and manipulate the world at the atomic scale. Thirty years after the Nobel Prize in Physics was awarded for its invention, the remarkable instrument is still being used to deepen our understanding of physical and chemical processes. Tantamount to this has been the development of new techniques to expand its capabilities allowing STMs to answer increasingly more difficult scientific questions. This dissertation describes three technological thrusts in expanding the STMs capabilities in studying physics at the single molecule level.
520 $a First, I have helped developed a new technique called the RF-STM which has the potential to snapshot femtosecond and picosecond processes by locking into the high frequency tunneling component generated from the 80MHz laser pulse train. This technique solves the problem of low frequency thermal oscillations when choppers are used in the beam line and if only tunneling signal is monitored, sub-angstrom spatial resolution should be simultaneously possible.
520 $a Second, I have helped develop the itProbe technique by increasing its ability to map out the interaction potential energy surface (iPES) between a tip-CO molecule and a surface adsorbed molecule. I present a study conducted on the bridge-like 1,4 phenylene diisocyanide molecule where the iPES is probed at different heights and different energies. The result is an ability to 3-dimensionally map out the iPES and provide reliable insight into developing itProbe simulations.
520 $a Third, I have developed a new technique called Energy Resolved Laser Action STM (ERLA-STM) where we can observe the change in molecular dynamics as a function of the illumination wavelength. In our pyrrolidine study, we demonstrated the kinetic changes that occur when an overtone of the CH stretch mode is excited by a near-IR laser pulse. By sweeping the excitation energy, we can characterize and control single molecule switches for use in potential molecular electronics applications.
520 $a All three approaches mentioned above are driven by the goal of understanding chemical processes at the atomic level. Such studies are integral to increasing our fundamental knowledge and providing technological foundations for further development.
590 $a School code: 0030.
650 4 $a Condensed matter physics. $3 3173567
650 4 $a Molecular physics. $3 3174737
650 4 $a Physical chemistry. $3 1981412
690 $a 0611
690 $a 0609
690 $a 0494
710 2 $a University of California, Irvine. $b Physics. $3 3193115
773 0 $t Dissertation Abstracts International $g 79-02B(E).
790 $a 0030
791 $a Ph.D.
792 $a 2017
793 $a English
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=10624230