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Using Momentum-resolved Optical Spec...
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DeCrescent, Ryan Anthony.
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Using Momentum-resolved Optical Spectroscopies to Quantify Anisotropic and Multipolar Phenomena in Organic and Hybrid Organic-Inorganic Semiconductors.
紀錄類型:
書目-電子資源 : Monograph/item
正題名/作者:
Using Momentum-resolved Optical Spectroscopies to Quantify Anisotropic and Multipolar Phenomena in Organic and Hybrid Organic-Inorganic Semiconductors./
作者:
DeCrescent, Ryan Anthony.
出版者:
Ann Arbor : ProQuest Dissertations & Theses, : 2020,
面頁冊數:
165 p.
附註:
Source: Dissertations Abstracts International, Volume: 82-04, Section: B.
Contained By:
Dissertations Abstracts International82-04B.
標題:
Physics. -
電子資源:
https://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=28094574
ISBN:
9798684682100
Using Momentum-resolved Optical Spectroscopies to Quantify Anisotropic and Multipolar Phenomena in Organic and Hybrid Organic-Inorganic Semiconductors.
DeCrescent, Ryan Anthony.
Using Momentum-resolved Optical Spectroscopies to Quantify Anisotropic and Multipolar Phenomena in Organic and Hybrid Organic-Inorganic Semiconductors.
- Ann Arbor : ProQuest Dissertations & Theses, 2020 - 165 p.
Source: Dissertations Abstracts International, Volume: 82-04, Section: B.
Thesis (Ph.D.)--University of California, Santa Barbara, 2020.
This item must not be sold to any third party vendors.
Herein, we describe a momentum-resolved optical reflectometry technique for precisely quantifying absorption anisotropies, with a particular interest in its ability to estimate distinct out-of-plane dipole strengths in solution-processable semiconductors. We demonstrate major advantages over conventional techniques, e.g., variable-angle spectroscopic ellipsometry, and subsequently show how to merge the strengths of the two techniques. We interrogate two distinct material systems: organic semiconductor thin films and two-dimensional (2D) hybrid organic-inorganic perovskites (HOIPs). In organic thin films, we resolve molecular reorientations due to processing conditions. In 2D HOIPs, we adopt a layered effective medium model to show that strong optical anisotropies arise predominantly from classical electromagnetics effects (i.e., dielectric inhomogeneity) rather than anisotropies in the quantum-mechanical matrix elements. Finally, we demonstrate unexpected multipolar light-matter interactions in 2D HOIPs, revealed by a highly polarized and oblique emission sideband. Electromagnetic and quantum-mechanical analyses indicate that this emission originates from an out-of-plane magnetic dipole transition arising from the 2D character of electronic states. The techniques described herein are materials agnostic and may provide insight into fundamental optoelectronic processes and processing-dependent structure-function relationships in a wide variety of interrogated materials.
ISBN: 9798684682100Subjects--Topical Terms:
516296
Physics.
Subjects--Index Terms:
Absorption
Using Momentum-resolved Optical Spectroscopies to Quantify Anisotropic and Multipolar Phenomena in Organic and Hybrid Organic-Inorganic Semiconductors.
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Herein, we describe a momentum-resolved optical reflectometry technique for precisely quantifying absorption anisotropies, with a particular interest in its ability to estimate distinct out-of-plane dipole strengths in solution-processable semiconductors. We demonstrate major advantages over conventional techniques, e.g., variable-angle spectroscopic ellipsometry, and subsequently show how to merge the strengths of the two techniques. We interrogate two distinct material systems: organic semiconductor thin films and two-dimensional (2D) hybrid organic-inorganic perovskites (HOIPs). In organic thin films, we resolve molecular reorientations due to processing conditions. In 2D HOIPs, we adopt a layered effective medium model to show that strong optical anisotropies arise predominantly from classical electromagnetics effects (i.e., dielectric inhomogeneity) rather than anisotropies in the quantum-mechanical matrix elements. Finally, we demonstrate unexpected multipolar light-matter interactions in 2D HOIPs, revealed by a highly polarized and oblique emission sideband. Electromagnetic and quantum-mechanical analyses indicate that this emission originates from an out-of-plane magnetic dipole transition arising from the 2D character of electronic states. The techniques described herein are materials agnostic and may provide insight into fundamental optoelectronic processes and processing-dependent structure-function relationships in a wide variety of interrogated materials.
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https://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=28094574
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