Uncovering Nanoclusters in Amorphous AlN: An Ab Initio Study

Durandurdu M.

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, cilt.98, sa.4, ss.1095-1098, 2015 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 98 Sayı: 4
  • Basım Tarihi: 2015
  • Doi Numarası: 10.1111/jace.13406
  • Dergi Adı: JOURNAL OF THE AMERICAN CERAMIC SOCIETY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.1095-1098
  • Abdullah Gül Üniversitesi Adresli: Evet

Özet

Amorphous AlN (a-AlN) is modeled by melt-and-quench technique using ab initio molecular dynamic simulations. For the first time, three-dimensional hexagonal-like nanoclusters embedded in amorphous matrix are proposed for a-AlN. The model is chemically ordered and dominantly fourfold coordinated, but its short-range order is partially different from the crystalline morphology due to the nanoclusters. The model is semiconducting with a theoretical band gap of 1.7eV.