Composition-tunable Cu2(Ge(1-x),Sn(x))(S(3-y),Se(y)) colloidal nanocrystals: synthesis and characterization

Chem Commun (Camb). 2014 Oct 28;50(84):12738-41. doi: 10.1039/c4cc06071g.

Abstract

A facile colloidal approach was developed to prepare cubic Cu2(Ge1-x,Snx)(S3-y,Sey) nanocrystals (NCs) (0 ≤ x ≤ 1, 0 ≤ y ≤ 3). The band gaps of the NCs can be tuned in the range of 1.35-2.45 eV by varying the chemical compositions, and the NCs display promising applications in solar energy utilization.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Colloids / chemistry*
  • Copper / chemistry
  • Germanium / chemistry
  • Metals / chemistry*
  • Nanoparticles / chemistry*
  • Nanoparticles / ultrastructure
  • Selenium / chemistry
  • Semiconductors
  • Solar Energy
  • Sulfur / chemistry
  • Tin / chemistry

Substances

  • Colloids
  • Metals
  • Germanium
  • Sulfur
  • Tin
  • Copper
  • Selenium