Electronic and mechanical properties of wurtzite type SiC nanowires


Durandurdu M.

PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS, cilt.243, 2006 (SCI İndekslerine Giren Dergi)

  • Cilt numarası: 243 Konu: 5
  • Basım Tarihi: 2006
  • Doi Numarası: 10.1002/pssb.200642041
  • Dergi Adı: PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS

Özet

Pure and hydrogen terminated silicon carbide (SiC) nanowires grown along [0001] direction in the wurtzite structure are studied using ab initio density functional theory calculations. The pure wires preserve their crystalline-like topology with only small relaxations on their surface. Also, the pure wires are semiconducting, but their band gap energy decreases with decreasing diameter due to the presence of surface states. As expected, hydrogen saturation induces a broadening of the band gap energy because of the quantum confinement effect. SiC nanowires are also predicted to be very rigid. (c) 2006 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.