Sol gel synthesized zinc oxide nanorods on single and Co-doped ZnO seed layer templates: Morphological, optical and electrical properties

• Published in: International Journal of Electrochemical Science
• Main Author: Mohamed R.; Rouhi J.; Malek M.F.; Ismail A.S.; Alrokayan S.A.H.; Khan H.A.; Khusaimi Z.; Mamat M.H.; Mahmood M.R.
• Format: Article
• Language: English
• Published: Electrochemical Science Group 2016
• Online Access: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84960510371&partnerID=40&md5=03ba36329a2f6f7b0764ce777bc2ebfb

Highly ordered and uniform vertical ZnO nanorod arrays were synthesized by a facile and low-temperature sol-gel method using two different seed layers [i.e., Mg-doped ZnO (MZO) and Al,Mg-doped ZnO (AMZO)] and deposited by spin coating technique. Field-emission scanning electron microscopy images confirmed that vertical, denser, and orderly ZnO nanorods are grown on AMZO seed layer compared with that synthesized on MZO seed. UV-visible spectra indicated that Al and Mg additives could significantly enhance the optical transparency and induce a blueshift in optical band gap of ZnO films. The electrical property shows that ZnO nanorods grown on AMZO seed have lower resistivity of 2.30 Ω cm than that on MZO seed (7.67 Ω cm). The electrical conductivity of ZnO films grown on co-doped seed layer could be tailor and this might be effectively inducing the geometric growth of ZnO films by sol-gel. © 2016 The Authors.