Electrical transport in AZO nanorods


Yildiz A. , Cansizoglu H., Karabacak T.

Applied Surface Science, cilt.352, ss.2-4, 2015 (SCI Expanded İndekslerine Giren Dergi) identifier identifier

  • Yayın Türü: Makale / Özet
  • Cilt numarası: 352
  • Basım Tarihi: 2015
  • Doi Numarası: 10.1016/j.apsusc.2015.02.067
  • Dergi Adı: Applied Surface Science
  • Sayfa Sayıları: ss.2-4

Özet

© 2015 Elsevier B.V. All rights reserved.Al-doped ZnO (AZO) nanorods (NRs) with different lengths were deposited by utilizing glancing angle deposition (GLAD) technique in a DC sputter system at room temperature. The structural and optical characteristics of the NRs were investigated by the X-ray diffraction (XRD), scanning electron microscopy (SEM), and UV-vis-NIR spectroscopy measurements. A band gap of about 3.5 eV was observed for the NRs. A novel capping process utilizing varying deposition angles was used to introduce a blanket metal top contact for the electrical characterization of NRs. Current-voltage (I-V) measurements were used to properly evaluate the approximate resistivity of a single NR. The electrical conduction was found to be governed by the thermally activated transport mechanism. Activation energy was determined as 0.14 eV from temperature dependent resistivity data.