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Wayne State University Dissertations

2013

Aggregation

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Chalcogenide Sol-Gel Assembly: Controlling The Kinetics Of Nanocrystal Aggregation And Film Formation For Applications In Optoelectronics, Lasantha Korala Jan 2013

Chalcogenide Sol-Gel Assembly: Controlling The Kinetics Of Nanocrystal Aggregation And Film Formation For Applications In Optoelectronics, Lasantha Korala

Wayne State University Dissertations

The dissertation work is focused on 1) optimization of gelation conditions in order to tune the properties of the resultant gel structures with the aim of addressing application-specific needs; 2) incorporation of gel materials into device architectures for evaluation of intrinsic properties and assessment of suitability for optoelectronic applications.

Sol-gel assembly of CdSe/ZnS core/shell NCs typically results in opaque gel materials, which is one of the major obstacles for their use in optoelectronic applications such as LEDs. Macroscopic properties (i.e. transparency) of CdSe/ZnS gel structures were tuned by controlling the aggregation and gelation kinetics by means of oxidant concentration. The …