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2017YingfangMa-PhD-Dissertation.pdf (10.06 MB)

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Electronic Structure, Optical Properties and Long-Range-Interaction Driven Mesoscale Assembly

Ma, Yingfang
http://rave.ohiolink.edu/etdc/view?acc_num=case1497049273517057

Abstract Details

2017, Doctor of Philosophy, Case Western Reserve University, Materials Science and Engineering.
The construction of mesoscale assemblies using a bottom-up approach is an emerging research area in recent years, while understanding the interactions that control the organization of the constructing building blocks turns out to be a prerequisite for effective assembly design. The intrinsic electronic structures of materials determine their optical properties, which give rise to long-range interactions including electrostatic and van der Waals (vdW) components. And electrostatic along with vdW interactions, are the fundamental interactions that drive mesoscale assembly. In this research, the long range interactions of inorganic material and bio-molecules are investigated using both experiment and computation optical methods, and then a functional mesoscale assembly based on an inorganic substrate and biomolecular particles are built. In terms of the inorganic material, the full spectral optical properties and van der Waals-London interaction of bulk SiC crystal is investigated with a combination of vacuum ultraviolet spectroscopy and Liftshiz theory-based Hamaker coefficient calculation, and compared with OLCAO electronic structure calculations of the band structure and ab initio optical properties of SiC. Cylindrical biomolecules, DNA, is selected as a biomolecular example. The effect of nitrogen base polarizability on the optical properties and electronic structures of double-strand DNA are studied by optical characterization and ab initio density functional theory modeling; then G-quadruplex DNA consisting of human telomere sequence are characterized by spectroscopy, static light scattering and ab initio modeling, and compared with corresponding double-strand DNA, giving rise to the structural dependent electronic structures and pH dependent pair-wise interactions. Finally, the first semi-ordered, layered, mesoscale self-assembly capable of photon management comprised of plant viruses is created and characterized. Anti-reflection and photon-trapping properties are demonstrated theoretically using computational optics modeling and experimentally using spectroscopy. I expect the methodologists and conclusions in this research will bring useful insights into the understanding of building blocks and the design of meso-scale assemblies.
Roger French, Dr. (Advisor)
Nicole Steinmetz, Dr. (Committee Member)
Alp Sehirlioglu, Dr. (Committee Member)
Rudolf Podgornik, Dr. (Committee Member)
Hongping Zhao, Dr. (Committee Member)
Materials Science
self-assembly; long range interactions; optical properties; static light scattering; computational optics modeling; electromagnetic modeling; biomolecules; DNA; G-quadruplex, virus-programmed; van der Waals interaction, SiC

Recommended Citations

Citations

  • Ma, Y. (2017). Electronic Structure, Optical Properties and Long-Range-Interaction Driven Mesoscale Assembly [Doctoral dissertation, Case Western Reserve University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=case1497049273517057

    APA Style (7th edition)

  • Ma, Yingfang. Electronic Structure, Optical Properties and Long-Range-Interaction Driven Mesoscale Assembly. 2017. Case Western Reserve University, Doctoral dissertation. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=case1497049273517057.

    MLA Style (8th edition)

  • Ma, Yingfang. "Electronic Structure, Optical Properties and Long-Range-Interaction Driven Mesoscale Assembly." Doctoral dissertation, Case Western Reserve University, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=case1497049273517057

    Chicago Manual of Style (17th edition)

case1497049273517057
1,761
© 2017, all rights reserved.
This open access ETD is published by Case Western Reserve University School of Graduate Studies and OhioLINK.