NDLI: Role of growth conditions on optical and electrical properties of fiber structured Zn$_{0.90}$Cd$

Content Provider	Springer Nature Link
Author	Joishy, Sumanth Rajendra, B. V. Rao, Ashok Kulkarni, Suresh D.
Copyright Year	2017
Abstract	Fiber structured Zn$_{0.90}$Cd$_{0.1}$O films were obtained on glass substrate using zinc acetate and cadmium acetate solution through chemical spray pyrolysis method. All the deposited films are polycrystalline with hexagonal wurtzite structure. The average crystalline size of the deposited films were estimated through intensity of diffraction peak corresponding (101) plane, which is observed to increase with increase substrate temperature. The films deposited at 673 and 723 K have fibrous structure irrespective of the precursor concentration. The presence of Cd in the deposited films was confirmed by EDAX. The high transparency around 90% in visible region was observed for the sample deposited at 723 K using 0.0125 M concentration. It is seen that the optical energy band gap varies from 2.85 to 3.05 eV as the deposition temperature is changed from 673 to 723 K. The film deposited using 0.05 M concentration had low Urbach energy values compared to other molar concentrations confirming the minimization of defect states in these samples. With increasing deposition temperature the near band edge peak of photoluminescence spectrum shifted towards shorter wavelengths and in the same spectrum the weak green emission may be due to presence of singly ionized oxygen ion. The estimated activation energy of the deposited films was observed to decrease with increasing temperature and precursor concentration.
Starting Page	7489
Ending Page	7500
Page Count	12
File Format	PDF
ISSN	09574522
Journal	Journal of Materials Science: Materials in Electronics
Volume Number	28
Issue Number	10
e-ISSN	1573482X
Language	English
Publisher	Springer US
Publisher Date	2017-02-07
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Optical and Electronic Materials Characterization and Evaluation of Materials
Content Type	Text
Resource Type	Article
Subject	Atomic and Molecular Physics, and Optics Biomaterials Biophysics Condensed Matter Physics Electronic, Optical and Magnetic Materials Bioengineering Electrical and Electronic Engineering Biomedical Engineering

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