Presenter Information

William JosulFollow

Abstract

Over the past several years, interest in nanoparticle-derived solar cells has increased. This is due to their low material cost, high-potential efficiency, and desirable and tunable optical properties. Using biphasic ligand exchanges, sodium 3-mercapto-1-propanesulfonate (MPS) and sodium 2- mercaptoethanesulfonate (MES) were successfully exchanged as ligands with oleic acid to create particles that have a higher propensity to move charge in a solar cell. MES and MPS were chosen as ligands due to being shorter and less insulating than oleic acid. The initial as-synthesized CdSe-OLA, and the nanoparticle products of the two ligand exchanges were confirmed by 1H NMR, UV-Vis, and FTIR spectroscopy. These three nanoparticle products will be used further to synthesize potential thin-film solar cells.

College

College of Science & Engineering

Department

Chemistry

Breakout Room

16

Start Date

4-14-2021 1:00 PM

End Date

4-14-2021 1:45 PM

Presentation Type

Video (Live-Zoom)

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Apr 14th, 1:00 PM Apr 14th, 1:45 PM

Synthesis and Characterization of MPS and MES capped CdSe Nanoparticles

Over the past several years, interest in nanoparticle-derived solar cells has increased. This is due to their low material cost, high-potential efficiency, and desirable and tunable optical properties. Using biphasic ligand exchanges, sodium 3-mercapto-1-propanesulfonate (MPS) and sodium 2- mercaptoethanesulfonate (MES) were successfully exchanged as ligands with oleic acid to create particles that have a higher propensity to move charge in a solar cell. MES and MPS were chosen as ligands due to being shorter and less insulating than oleic acid. The initial as-synthesized CdSe-OLA, and the nanoparticle products of the two ligand exchanges were confirmed by 1H NMR, UV-Vis, and FTIR spectroscopy. These three nanoparticle products will be used further to synthesize potential thin-film solar cells.