The Synthesis and Analysis of Metallic and Semiconducting Nanoparticles
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SubjectScholarship Sewanee 2011; Undergraduate research; University of the South, Sewanee, Tennessee; Quantum dots; Nanoparticles; Electrochemistry; Quantum yield
AbstractMonolayer-protected gold nanoparticles were prepared using several different synthetic methods. The prepared nanoparticles were characterized by UV-visible spectroscopy, cyclic voltammetry (CV), differential pulse voltammetry (DPV), and mass spectrometry. Different thiols were used in the synthetic scheme in order to monitor differences in surface chemistry. A study of quantum yield in watersoluble, monolayer-protected quantum dots (QDs) was completed. The study examined the changes in quantum yield from the effects of heating, method of selenide addition, type of surrounding thiol, and material lifetime. Subsequent modifications of the QD surface were characterized using electrochemistry.
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