Degree Name

MS (Master of Science)

Program

Chemistry

Date of Award

5-2012

Committee Chair or Co-Chairs

Chu-Ngi Ho

Committee Members

Yu-Lin Jiang, Peng Sun

Abstract

Quantum dots are a part of very important our technological future because of their intriguing and useful properties. These properties are different in character from those of the corresponding bulk material. Quantum dots are inorganic artificial semiconductor nanocrystal whose electrons influence their physical and chemical properties. Zinc oxide quantum dots were synthesized through an ethanol based precipitation via colloidal synthesis method at various pH values. Various emission colors were obtained because the excited quantum dots of various sizes emitted specific wavelengths of light. The emission spectra indicated that the pH dependent quantum dots were successfully synthesized. Zinc oxide quantum dots were also encapsulated and the luminescence properties examined. The quantum dots that were immobilized in polyisoprene (PI) through chemiluminescence (CL) analyses were found to be stable and were capable of continuing their luminescence properties with extended uses and long- term storage. Linear calibration curves were acquired for concentration of 8.75 x 10-5 M H2O2 in TCPO-CL.

Document Type

Thesis - Open Access

Copyright

Copyright by the authors.

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