자료유형  

 학위논문

Control Number  

0016935204

International Standard Book Number  

9798380716574

Dewey Decimal Classification Number  

621

Main Entry-Personal Name  

Seyitliyev, Dovletgeldi.

Publication, Distribution, etc. (Imprint  

[S.l.] : North Carolina State University., 2022

Publication, Distribution, etc. (Imprint  

Ann Arbor : ProQuest Dissertations & Theses, 2022

Physical Description  

1 online resource(150 p.)

General Note  

Source: Dissertations Abstracts International, Volume: 85-05, Section: B.

General Note  

Advisor: Amassian, Aram;Ade, Harald;So, Franky;Gundogdu, Kenan.

Dissertation Note  

Thesis (Ph.D.)--North Carolina State University, 2022.

Restrictions on Access Note  

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

Summary, Etc.  

요약Fundamental differences between the organic and inorganic compounds lead to the properties that each system complements one another. Due to this reason, when combined in a hybrid form, the system can possess the benefits of both components. For example, in organic molecules, singlet fission can take place, where one high-energy singlet exciton can decay into two lower-energy triplets. This property of organics can be utilized to sensitize inorganic compounds by making hybrid structures to achieve efficient solar cell devices. Most of such properties of hybrids arise from the hybrid interfaces formed among their moieties. Thus, implementing these materials in practical applications requires a comprehensive understanding of their properties. Here in this thesis, I study the optoelectronic properties of these hybrid systems using steady-state and ultrafast spectroscopic tools. Using absorption and emission spectroscopy measurements, I show the possibility of the energy/charge transfer processes between the organic and inorganic components of these hybrids. In addition, I use ultrafast spectroscopic tools such as the time-resolved photoluminescence and transient absorption, to gain more insight into the energy/charge carrier dynamics. We find that in certain hybrid systems, electrons and holes are charge-separated among their moieties while in the others they are concentrated in one component. In a very specific case, where the highest occupied molecular orbital (HOMO) of the organic and the valance band minimum (VBM) of the inorganic are isoenergetic, we show that the charges oscillate between them. These studies demonstrate the enhanced functionality of hybrid semiconductors revealed by ultrafast spectroscopy.

Subject Added Entry-Topical Term  

Energy.

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Spectrum analysis.

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Fourier transforms.

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Semiconductors.

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Thin films.

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Carbon.

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Magnetic fields.

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Atoms & subatomic particles.

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Interfaces.

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Analytical chemistry.

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Atomic physics.

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Condensed matter physics.

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Electromagnetics.

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Mathematics.

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Optics.

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Physics.

Added Entry-Corporate Name  

North Carolina State University.

Host Item Entry  

Dissertations Abstracts International. 85-05B.

Host Item Entry  

Dissertation Abstract International

Electronic Location and Access  

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Control Number  

joongbu:643892