MORPHOLOGICAL CHANGE IN Cu-DOPED ZnO FROM ROD-LIKE TO FLOWERS-LIKE NANOSTRUCTURES: A VITAL ROLE FOR THE OPTICAL BAND GAP TUNING

S. Naseem Shah, M. Naeem, S. Rizwan Ali, S. Mahmood, S. Imran Ali, Yasmeen Bibi, S. Masood Raza and Najam Ul Hassan
Additional contact information
S. Naseem Shah: Department of Physics, University of Karachi, Karachi, Pakistan
M. Naeem: #x2020;Department of Physics, Federal Urdu University of Arts, Science and Technology, Karachi, Pakistan
S. Rizwan Ali: #x2020;Department of Physics, Federal Urdu University of Arts, Science and Technology, Karachi, Pakistan
S. Mahmood: Department of Physics, University of Karachi, Karachi, Pakistan
S. Imran Ali: #x2021;Department of Applied Chemistry and Chemical Technology, University of Karachi, Karachi, Pakistan
Yasmeen Bibi: #xA7;Department of Chemistry, Federal Urdu University of Arts, Science and Technology, Karachi, Pakistan
S. Masood Raza: #x2020;Department of Physics, Federal Urdu University of Arts, Science and Technology, Karachi, Pakistan
Najam Ul Hassan: #xB6;School of Material Science and Engineering, Nanjing University of Science and Technology, Nanjing, P. R. China

Surface Review and Letters (SRL), 2017, vol. 24, issue Supp01, 1-8

Abstract: We demonstrate a morphological change in Zn1-xCuxO (x= 0–5%) samples from rod-like (x≤ 2%) to flower-like (x> 2%) with increasing Cu concentration. This effect is attributed to Cu induced change in the ZnO growth mode from one-dimensional (forming rod-like) to two-dimensional (forming flower-like) structures. The optical properties of the samples were also found to be well correlated with the observed morphological changes in the samples. Optical bandgap decreases with increasing x, exhibiting a minimum (2.88eV) at x= 2% and afterwards it increases slightly up to 3.00eV for x= 5%. Our results show an intriguing possibility of bandgap tuning by the sample morphology.

Keywords: Nanostructures; chemical synthesis; Cu doping; morphology; optical property (search for similar items in EconPapers)
Date: 2017
References: View complete reference list from CitEc
Citations:

Downloads: (external link)
http://www.worldscientific.com/doi/abs/10.1142/S0218625X18500014
Access to full text is restricted to subscribers

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:wsi:srlxxx:v:24:y:2017:i:supp01:n:s0218625x18500014

Ordering information: This journal article can be ordered from

DOI: 10.1142/S0218625X18500014

Access Statistics for this article

Surface Review and Letters (SRL) is currently edited by S Y Tong

More articles in Surface Review and Letters (SRL) from World Scientific Publishing Co. Pte. Ltd.
Bibliographic data for series maintained by Tai Tone Lim ().