Details

Autor(en) / Beteiligte

• Liu, Wenyong
• Chang, Angela Y
• Schaller, Richard D
• Talapin, Dmitri V

Titel

Colloidal InSb Nanocrystals

Ist Teil von

• Journal of the American Chemical Society, 2012-12, Vol.134 (50), p.20258-20261

Ort / Verlag

United States: American Chemical Society

Erscheinungsjahr

2012

Link zum Volltext

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• 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 S2– ions showed ambipolar charge transport.