title: Colloidal InSb nanocrystals.
abstract: We report the colloidal synthesis of monodisperse nanocrystals (NCs) of InSb, which is an important member of III-V semiconductor family. Colloidal InSb NC quantum dots showed well-resolved excitonic transitions in the near-infrared spectral range, with the optical band gaps tunable from ∼1.03 eV (1200 nm) to ∼0.71 eV (1750 nm) corresponding to 3.3 and 6.5 nm InSb NCs, respectively. We observed size-tunable band edge photoluminescence that could be significantly enhanced by growing InSb/CdSe or InSb/CdS core-shell nanostructures. Films of InSb NCs capped with S(2-) ions showed ambipolar charge transport.
authors.affiliation: Department of Chemistry and James Frank Institute, University of Chicago, Illinois 60637, United States.
authors.forename: Wenyong
authors.initials: W
authors.lastname: Liu
authors.forename: Angela Y
authors.initials: AY
authors.lastname: Chang
authors.forename: Richard D
authors.initials: RD
authors.lastname: Schaller
authors.forename: Dmitri V
authors.initials: DV
authors.lastname: Talapin