Senior Project Advisor

Dr. David Patrick

Document Type

Project

Publication Date

Spring 2020

Keywords

semiconducting nanocrystals, PLQY, solar energy

Abstract

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.

Subjects - Topical (LCSH)

Solvents--Synthesis; Solvents--Toxicity testing; Photoluminescence

Genre/Form

essays

Type

Text

Rights

Copying of this document in whole or in part is allowable only for scholarly purposes. It is understood, however, that any copying or publication of this document for commercial purposes, or for financial gain, shall not be allowed without the author’s written permission.

Language

English

Format

application/pdf

Download

Share

COinS