title: Bright white light emission from ultrasmall cadmium selenide nanocrystals.
abstract: A simple treatment method using formic acid has been found to increase the fluorescence quantum yield of ultrasmall white light-emitting CdSe nanocrystals from 8% to 45%. Brighter white-light emission occurs with other carboxylic acids as well, and the magnitude of the quantum yield enhancement is shown to be dependent on the alkyl chain length. Additionally, the nanocrystal luminescence remains enhanced relative to the untreated nanocrystals over several days. This brightened emission opens the possibility for even further quantum yield improvement and potential for use of these white-light nanocrystals in solid-state lighting applications.
authors.affiliation: Department of Chemistry, Vanderbilt University, VU Station B Box 351822, Nashville, Tennessee 37235, United States.
authors.forename: Teresa E
authors.initials: TE
authors.lastname: Rosson
authors.forename: Sarah M
authors.initials: SM
authors.lastname: Claiborne
authors.forename: James R
authors.initials: JR
authors.lastname: McBride
authors.forename: Benjamin S
authors.initials: BS
authors.lastname: Stratton
authors.forename: Sandra J
authors.initials: SJ
authors.lastname: Rosenthal
mesh_terms: D019187:Cadmium Compounds / Q000737:chemistry*; D003116:Color; D005561:Formates / Q000737:chemistry; D008027:Light; D053758:Nanoparticles / Q000737:chemistry*; D010316:Particle Size; D018036:Selenium Compounds / Q000737:chemistry*; D013057:Spectrum Analysis
chemical_list: D019187:Cadmium Compounds; D005561:Formates; D018036:Selenium Compounds; C030544:formic acid; C058667:cadmium selenide