A Biphasic Ligand Exchange Reaction on Cdse Nanoparticles: Introducing Undergraduates to Functionalizing Nanoparticles for Solar Cells

Autor/inn/en	Zemke, Jennifer M.; Franz, Justin
Titel	A Biphasic Ligand Exchange Reaction on Cdse Nanoparticles: Introducing Undergraduates to Functionalizing Nanoparticles for Solar Cells
Quelle	In: Journal of Chemical Education, 93 (2016) 4, S.747-752 (6 Seiten)Infoseite zur Zeitschrift PDF als Volltext Verfügbarkeit
Sprache	englisch
Dokumenttyp	gedruckt; online; Zeitschriftenaufsatz
ISSN	0021-9584
DOI	10.1021/acs.jchemed.5b00847
Schlagwörter	Science Instruction; College Science; Chemistry; Science Laboratories; Spectroscopy; Undergraduate Students; Science Experiments; Laboratory Experiments; Scientific Concepts; Molecular Structure + Suchen Sie Ihr Suchwort? Teaching of science; Science education; Natural sciences Lessons; Naturwissenschaftlicher Unterricht; Chemie; Spektroskopie; Laboratory work; Laborarbeit
Abstract	Semiconductor nanoparticles, including cadmium selenide (CdSe) particles, are attractive as light harvesting materials for solar cells. In the undergraduate laboratory, the size-tunable optical and electronic properties can be easily investigated; however, these nanoparticles (NPs) offer another platform for application-based tunability--the NP surface. In the interest of exploiting these particles for solar applications, the surface can be tuned to facilitate charge transfer out of the nanoparticles to maximize photocurrent for high-efficiency, low-cost solar cells. This multiweek undergraduate laboratory experiment introduces students to semiconducting nanomaterials and to taking steps to ensure functionality of these materials for solar applications. The experiment includes the synthesis of oleic acid-capped (OLA) CdSe particles and a biphasic ligand exchange reaction to afford ionically functionalized CdSe nanoparticles capped with sodium 3-mercaptopropane-1-sulfonate (MPS). Both the CdSe-OLA and CdSe-MPS materials in this experiment are characterized for ligand binding and relative particle size distribution by FTIR, 1H NMR, and UV-visible spectroscopies. (As Provided).
Anmerkungen	Division of Chemical Education, Inc and ACS Publications Division of the American Chemical Society. 1155 Sixteenth Street NW, Washington, DC 20036. Tel: 800-227-5558; Tel: 202-872-4600; e-mail: eic@jce.acs.org; Web site: http://pubs.acs.org/jchemeduc
Erfasst von	ERIC (Education Resources Information Center), Washington, DC
Update	2020/1/01