Nano Express

Nanoscale Research Letters

, 5:930

First online:

Open Access This content is freely available online to anyone, anywhere at any time.

ZnSe/ZnSeTe Superlattice Nanotips

  • CH HsiaoAffiliated withInstitute of Microelectronics & Department of Electrical Engineering, Advanced Optoelectronic Technology Center, Center for Micro/Nano Science and Technology, National Cheng Kung University
  • , SC HungAffiliated withDepartment of Information Technology & Communication, Shih Chien University
  • , SH ChihAffiliated withInstitute of Microelectronics & Department of Electrical Engineering, Advanced Optoelectronic Technology Center, Center for Micro/Nano Science and Technology, National Cheng Kung University
  • , SB WangAffiliated withInstitute of Microelectronics & Department of Electrical Engineering, Advanced Optoelectronic Technology Center, Center for Micro/Nano Science and Technology, National Cheng Kung University
  • , YC ChengAffiliated withMaterials and Electro-Optics Research Division, Chung Shan Institute of Science and Technology
  • , BR HuangAffiliated withGraduate Institute of Electro-Optical Engineering, Department of Electronic Engineering, National Taiwan University of Science and Technology
  • , SJ YoungAffiliated withDepartment of Electronic Engineering, National Formosa University
  • , SJ ChangAffiliated withInstitute of Microelectronics & Department of Electrical Engineering, Advanced Optoelectronic Technology Center, Center for Micro/Nano Science and Technology, National Cheng Kung University Email author 

Abstract

The authors report the growth of ZnSe/ZnSeTe superlattice nanotips on oxidized Si(100) substrate. It was found the nanotips exhibit mixture of cubic zinc-blende and hexagonal wurtzite structures. It was also found that photoluminescence intensities observed from the ZnSe/ZnSeTe superlattice nanotips were much larger than that observed from the homogeneous ZnSeTe nanotips. Furthermore, it was found that activation energies for the ZnSe/ZnSeTe superlattice nanotips with well widths of 16, 20, and 24 nm were 76, 46, and 19 meV, respectively.

Keywords

ZnSe/ZnSeTe superlattice nanotip Photoluminescence Activation energies