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dc.contributor.authorDas, Sushanta K.en_US
dc.contributor.authorD'Souza, Francisen_US
dc.date.accessioned2009-11-19T21:48:22Z
dc.date.available2009-11-19T21:48:22Z
dc.date.issued2009-05-01en_US
dc.identifier.citationDas, Sushanta K. and Francis D'Souza (2009). Synthesis of CdTe quantum dots of different sizes and their interactions with water soluble porphyrins. In Proceedings: 5th Annual Symposium: Graduate Research and Scholarly Projects. Wichita, KS: Wichita State University, p. 88-89en_US
dc.identifier.urihttp://hdl.handle.net/10057/2298
dc.descriptionPaper presented to the 5th Annual Symposium on Graduate Research and Scholarly Projects (GRASP) held at the Hughes Metropolitan Complex, Wichita State University, May 1, 2009.en_US
dc.descriptionResearch completed at Department of Chemistry, Fairmount College of Liberal Arts and Sciencesen_US
dc.description.abstractProgress in the synthesis of CdTe quantum dots through controlled colloidal-thermal processing and understanding of the factors that control the luminescence quantum yields of CdTe quantum dots enable us to discover technological applications such as fluorescence probes for chemo sensor development and biological imaging, tunable absorbers and emitters in nanoscale electronics, quantum dot lasers and advanced materials for electrochemical applications. In the present study, CdTe quantum dots of different sizes are synthesized in aqueous solution using both anionic (thioglycolic acid) and cationic (2-amino ethanethiol hydrochloride) as stabilizers. The quantum dots are synthesized in a known pH range and the quantum dots are seen to depend on specific pH values depending on the stabilizer added. Their characterization is made using various spectroscopic techniques. The size of the quantum dots is found to vary with the processing time and temperature. Additionally, interaction of the quantum dots with water soluble porphyrins is investigated using steady-state and time-resolved emission studies. Preliminary results suggest photo induced energy transfer as a mechanism of fluorescence quenching.en_US
dc.format.extent235395 bytes
dc.format.mimetypeapplication/pdf
dc.language.isoen_USen_US
dc.publisherWichita State University. Graduate Schoolen_US
dc.relation.ispartofseriesGRASPen_US
dc.relation.ispartofseriesv.5en_US
dc.titleSynthesis of CdTe quantum dots of different sizes and their interactions with water soluble porphyrinsen_US
dc.typeConference paperen_US


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