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Master of Science (MS)
Patrick, David L.
Gilbertson, John D.
Rider, David A. (Materials scientist)
Optical concentration has the potential to lower the cost of solar energy conversion by reducing photovoltaic cell area and increasing photovoltaic efficiency. Luminescent solar concentrators (LSCs) offer an attractive approach to combined spectral and spatial concentration of both specular and diffuse light without expensive solar tracking, but they have been plagued by luminophore self-absorption losses which limit them from achieving their full potential. This thesis introduces doped semiconductor nanocrystals as a new class of phosphors for use in LSCs. In proof-of-concept experiments, visibly transparent, ultraviolet-selective luminescent solar concentrators have been prepared using colloidal Mn2+-doped II-VI semiconductor nanocrystals that show no luminescence reabsorption. For the first time LSCs are not bounded by luminophore self-absorption but by the transparency of the waveguide itself. Future directions in the use of colloidal doped nanocrystals as robust, solution processable, spectrum-shifting phosphors for luminescent solar concentration on the large scales required for practical application of this technology are discussed.
Western Washington University
Copying of this thesis in whole or in part is allowable only for scholarly purposes. It is understood, however, that any copying or publication of this thesis for commercial purposes, or for financial gain, shall not be allowed without the author's written permission.
Erickson, Christian S. (Christian Soren), "Doped quantum dot luminescent solar concentrators" (2014). WWU Graduate School Collection. 375.