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January 24, 2010 | History

Low-loss waveguides made from solution-processed infrared-emitting semiconductor quantum dots 1 edition

Low-loss waveguides made from solution-processed infrared-emitting sem ...
Savior Cauchi

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Low-loss waveguides made from solution-processed infrared-emitting semiconductor quantum dots.

Published 2005 .
Written in English.

About the Book

Existing infrared-emitting, solution-processed waveguides are made by embedding nanocrystal quantum dots in sol-gel waveguides. The fabrication of such waveguides is complex, and results in a less intense optical light source. The marketplace, however, demands that solution-based photonics be simple and economical in order to thrive. There is hence a need for simpler, efficient, infrared-emitting nanocrystal waveguides.This thesis describes a simple room-temperature processing step that can double photoluminescence quantum efficiency in solution while enabling the fabrication of thicker, smoother, more uniform planar waveguides. This process is used to demonstrate the fabrication of matrix-free nanocrystal waveguides emitting in the near-infrared with > 5% photoluminescence quantum efficiency. These waveguides exhibit low-loss (∼5-10 cm -1) due to low surface roughness (< 10 nm), and are fabricated as both single- and multi-mode planar structures. A demonstration of waveguiding in corrugated structures is also made. These results reveal the feasibility of solution-based photonics in the infrared.

Edition Notes

Source: Masters Abstracts International, Volume: 44-02, page: 0985.

Thesis (M.A.Sc.)--University of Toronto, 2005.

Electronic version licensed for access by U. of T. users.

GERSTEIN MICROTEXT copy on microfiche (2 microfiches).

The Physical Object

112 leaves.
Number of pages

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History Created December 11, 2009 · 2 revisions Download catalog record: RDF / JSON

January 24, 2010 Edited by WorkBot add more information to works
December 11, 2009 Created by WorkBot add works page