자료유형  

 학위논문

Control Number  

0017160182

International Standard Book Number  

9798382211527

Dewey Decimal Classification Number  

546

Main Entry-Personal Name  

Eagle, Forrest Walker.

Publication, Distribution, etc. (Imprint  

[S.l.] : University of Washington., 2024

Publication, Distribution, etc. (Imprint  

Ann Arbor : ProQuest Dissertations & Theses, 2024

Physical Description  

135 p.

General Note  

Source: Dissertations Abstracts International, Volume: 85-10, Section: B.

General Note  

Advisor: Cossairt, Brandi.

Dissertation Note  

Thesis (Ph.D.)--University of Washington, 2024.

Summary, Etc.  

요약Cation exchange is a powerful method to expand the versatility and properties of a semiconductor nanocrystal. By tuning the amount of exogenous cation a spectrum of new materials can be accessed, including doped nanoparticles, alloyed nanocrystals, and even fully exchanged nanomaterials that may be challenging or impossible to create via traditional synthetic methods. This thesis focuses on the cation exchange of coinage metal (Cu, Ag, Au) cations in InP nanomaterials. Chapter 1 will provide an introduction to core concepts and background related to quantum dots, clusters, and dopant-dependent properties. In chapter 2, we will discuss the development of a new methodology to dope InP quantum dots with Cu+ ions, and the effect that surface treatments have upon the photophysics of these Cu+ :InP nanocrystals. In chapter 3, electron transfer to molecular acceptors from undoped and coinage metal (Cu, Ag) doped InP quantum dots is investigated, finding that the long lived photoexcited states imparted by doping QDs greatly enhance the likelihood of electron transfer. In chapter 4, coinage metals (Cu, Ag, Au) are exchanged into atomically precise In37P20(O2CC13H27)51 magic sized clusters (MSCs). The exchange of cations in the InP lattice can be tuned either creating doped InP-MSCs, or driven to completion, creating coinage metal-phosphide clusters. These materials have distinct spectroscopic and structural characteristics, and can serve as precursors for forming larger nanoparticles, including previously unreported materials.

Subject Added Entry-Topical Term  

Inorganic chemistry.

Subject Added Entry-Topical Term  

Quantum physics.

Subject Added Entry-Topical Term  

Nanoscience.

Index Term-Uncontrolled  

Cation exchange

Index Term-Uncontrolled  

Charge transfer

Index Term-Uncontrolled  

Doping

Index Term-Uncontrolled  

Nanoparticle

Index Term-Uncontrolled  

Quantum dots

Added Entry-Corporate Name  

University of Washington Chemistry

Host Item Entry  

Dissertations Abstracts International. 85-10B.

Electronic Location and Access  

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Control Number  

joongbu:655014