title: CdTe nanocrystals: synthesis, optical characterization, and pseudopotential calculation of the band gap.
abstract: CdTe nanocrystals were synthesized in aqueous solution using 1-thioglycerol and 2-mercaptoethanol as surface stabilizers. The nanocrystals were characterized by means of X-ray powder diffraction and UV-vis absorption measurements. The UV-vis absorption spectra exhibit two distinct transition lines. Comparison of the experimental measurements with the results of the empirical pseudopotential calculations of the CdTe nanocrystals showed that the lower energy absorption line can be assigned to the heavy-hole exciton transition, whereas the higher energy absorption line can be attributed to the light-hole exciton transition.
authors.affiliation: Department of Physics, University of Hull, Hull HU6 7RX, United Kingdom.
authors.forename: T
authors.initials: T
authors.lastname: Stirner
authors.forename: N T
authors.initials: NT
authors.lastname: Kirkman
authors.forename: L
authors.initials: L
authors.lastname: May
authors.forename: C
authors.initials: C
authors.lastname: Ellis
authors.forename: J E
authors.initials: JE
authors.lastname: Nicholls
authors.forename: S M
authors.initials: SM
authors.lastname: Kelly
authors.forename: M
authors.initials: M
authors.lastname: O'Neill
authors.forename: J H
authors.initials: JH
authors.lastname: Hogg
mesh_terms: D019187:Cadmium Compounds / Q000138:chemical synthesis / Q000737:chemistry* / Q000302:isolation & purification; D003198:Computer Simulation; D003460:Crystallization / Q000379:methods*; D004563:Electrochemistry / Q000379:methods; D004735:Energy Transfer; D008958:Models, Molecular; D008968:Molecular Conformation; D036103:Nanotechnology / Q000379:methods*; D033362:Powder Diffraction; D013053:Spectrophotometry; D013691:Tellurium / Q000737:chemistry* / Q000302:isolation & purification; D014867:Water / Q000737:chemistry
chemical_list: D019187:Cadmium Compounds; D014867:Water; D013691:Tellurium; C028337:cadmium telluride