Senior Project Advisor
Dr. David Patrick
semiconducting nanocrystals, PLQY, solar energy
To increase the efficiency of solar cells, copper indium disulfide- zinc sulfur nanocrystals need to be grown larger to emit further in the range of silicon’s optimal absorption and have a higher photoluminescence quantum yield. Typically, the bigger the quantum dot, the lower the photoluminescence quantum yield, making this aim difficult to achieve. Additionally, many syntheses used for this material include large amounts of toxic precursors that would make industry-level production expensive and potentially harmful to the environment. This paper develops a robust synthesis to be used in a wide range of solvents, including unrefined avocado oil, that decreases the amount of precursors and toxic waste while increasing the photoluminescence quantum yield to between 69-85% at a peak emission of 740-760 nm depending on the solvent used.
Noesen, Maya, "Robust and Simple Synthesis of CIS/ZnS Refined for High Luminescence in the Near-IR" (2020). WWU Honors Program Senior Projects. 402.
Subjects - Topical (LCSH)
Solvents--Synthesis; Solvents--Toxicity testing; Photoluminescence
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