Modelling of CdSe/CdZnS and ZnSe/CdZnS Binary/Ternary Heterostructure Core/Shell Quantum Dots

Ünlü H.

33rd International Physics Congress of the Turkish-Physical-Society (TPS), Bodrum, Türkiye, 6 - 10 Eylül 2017, cilt.1935 identifier identifier

  • Yayın Türü: Bildiri / Tam Metin Bildiri
  • Cilt numarası: 1935
  • Doi Numarası: 10.1063/1.5025975
  • Basıldığı Şehir: Bodrum
  • Basıldığı Ülke: Türkiye
  • İstanbul Teknik Üniversitesi Adresli: Evet

Özet

We derived an analytical expression for the effects of core lattice vibration, ternary composition and interface strain due to the mismatch of lattice constants and thermal expansion coefficients of core and shell on the core region band gap of binary/ternary heterostructure core/shell quantum dots as a function of composition and temperature. It is shown that the effect of core region lattice vibration on band gap of CdSe/CdZnS and ZnSe/CdZnS QDs is higher than that of interface strain at high temperatures.