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dc.contributor.authorBorchardt, Adrienneen_US
dc.contributor.authorMiles, Deon T.en_US
dc.date.accessioned2012-06-05T17:46:27Z
dc.date.available2012-06-05T17:46:27Z
dc.date.issued2011-04-29en_US
dc.identifier.urihttp://hdl.handle.net/11005/283
dc.description.abstractSeveral varieties of cadmium selenide (CdSe) quantum dots (QDs) were synthesized using different metal salts (cadmium perchlorate, purified cadmium chloride, anhydrous cadmium chloride, and cadmium sulfate) and water-soluble thiols. The spectral properties (absorption and emission spectroscopy) of these QDs were similar, regardless of metal salt. Mass spectrometry was performed on each to determine the molecular weight of the QDs. The mass spectral data obtained were not conclusive. Since the QD solution has a pH of ~11, we believe that the QDs are multiply charged because of the carboxylate groups of the water-soluble thiols surrounding the semiconducting core Because of the charges on the QDs, the molecular weight is difficult to determine. The pH of each QD solution was then adjusted to values near the pKa of the water-soluble thiols to reduce the amount of charge surrounding the QD cores. These pH-adjusted solutions were subsequently analyzed using spectroscopic techniques, including mass spectrometry.en_US
dc.description.sponsorshipNational Science Foundation (CHE-0959401); Dr. Deon T. Miles, Department of Chemistryen_US
dc.language.isoen_USen_US
dc.publisherUniversity of the Southen_US
dc.subjectScholarship Sewanee 2011en_US
dc.subjectUniversity of the South, Sewanee, Tennesseeen_US
dc.subjectUndergraduate researchen_US
dc.subjectQuantum dotsen_US
dc.subjectNanoparticlesen_US
dc.subjectMass Spectrometryen_US
dc.subjectMetal Salten_US
dc.titleSynthesis of CdSe quantum dots using various metal saltsen_US
dc.typePresentationen_US


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