title: The dual role of sulfur-containing amino acids in the synthesis of IV-VI semiconductor nanocrystals: a mechanochemical approach.
abstract: PbS@cystine nanocrystals were synthesized mechanochemically, with lead acetate and L-cystine being used as the lead and sulfur precursors, respectively. The resulting nanocrystals are 22-34 nm in size, well-faceted and octahedral in shape. Characterization by XRD, FT-IR, NMR, FE-SEM, EDS, TEM (HRTEM) and surface area measurement methods showed that the particles are single, defect-free crystals with a high crystallinity. Furthermore, the crystals were prepared using a solvent-free procedure that was performed under ambient temperature and atmospheric pressure.
authors.affiliation: Institute of Geotechnics, Slovak Academy of Sciences, Watsonova 45, 04353 Košice, Slovakia. balaz@saske.sk balazm@saske.sk zorkovska@saske.sk.
authors.forename: Peter
authors.initials: P
authors.lastname: Baláž
authors.forename: Matej
authors.initials: M
authors.lastname: Baláž
authors.forename: Mária
authors.initials: M
authors.lastname: Caplovičová
authors.forename: Anna
authors.initials: A
authors.lastname: Zorkovská
authors.forename: Lubomír
authors.initials: L
authors.lastname: Caplovič
authors.forename: Miroslav
authors.initials: M
authors.lastname: Psotka
mesh_terms: D000596:Amino Acids / Q000737:chemistry*; D045663:Quantum Dots / Q000737:chemistry*; D017550:Spectroscopy, Fourier Transform Infrared; D013455:Sulfur; D014961:X-Ray Diffraction
chemical_list: D000596:Amino Acids; D013455:Sulfur