Optical, electrical and magnetic properties of fiber structure Zn0.99Mn0.01O films prepared by spray pyrolysis

H. S. Sindhu, B. V. Rajendra, Suresh D. Kulkarni, P. D. Babu

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Zn0.99Mn0.01O thin films were deposited on borosilicate glass at different temperatures and precursor concentration using cost-effective chemical spray pyrolysis. X-ray diffraction patterns revealed that all the deposits had a hexagonal wurtzite structure with (0 0 2) preferred orientation. The variation of deposition temperature and precursor concentration slightly modified the crystallite size and lattice parameters. The compositional analysis by Energy dispersive X-ray analysis indicated the presence of zinc and manganese. The films deposited at 723 K using 0.0125 M precursor exhibited ~90% transmittance in the visible region. The optical energy band-gap reduced when both deposition temperature and solution molarity were increased probably due to sp-d exchange interactions. All deposited films showed two emission peaks that is near band edge and deep level emissions in ultraviolet and visible region respectively. All films showed n-type electrical conductivity. The observed changes were due to the variation in charge carrier density and mobility in the films. Low-temperature magnetic studies showed that the films were super-paramagnetic when deposited using low precursor concentration while they were weakly ferromagnetic when deposited using higher precursor concentration.

Original languageEnglish
Pages (from-to)83-94
Number of pages12
JournalThin Solid Films
Volume655
DOIs
Publication statusPublished - 01-06-2018

Fingerprint

Spray pyrolysis
pyrolysis
sprayers
Magnetic properties
Electric properties
Optical properties
electrical properties
magnetic properties
optical properties
fibers
Fibers
Temperature
Borosilicate glass
Energy dispersive X ray analysis
Carrier mobility
Exchange interactions
borosilicate glass
Crystallite size
Manganese
carrier mobility

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Materials Chemistry

Cite this

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title = "Optical, electrical and magnetic properties of fiber structure Zn0.99Mn0.01O films prepared by spray pyrolysis",
abstract = "Zn0.99Mn0.01O thin films were deposited on borosilicate glass at different temperatures and precursor concentration using cost-effective chemical spray pyrolysis. X-ray diffraction patterns revealed that all the deposits had a hexagonal wurtzite structure with (0 0 2) preferred orientation. The variation of deposition temperature and precursor concentration slightly modified the crystallite size and lattice parameters. The compositional analysis by Energy dispersive X-ray analysis indicated the presence of zinc and manganese. The films deposited at 723 K using 0.0125 M precursor exhibited ~90{\%} transmittance in the visible region. The optical energy band-gap reduced when both deposition temperature and solution molarity were increased probably due to sp-d exchange interactions. All deposited films showed two emission peaks that is near band edge and deep level emissions in ultraviolet and visible region respectively. All films showed n-type electrical conductivity. The observed changes were due to the variation in charge carrier density and mobility in the films. Low-temperature magnetic studies showed that the films were super-paramagnetic when deposited using low precursor concentration while they were weakly ferromagnetic when deposited using higher precursor concentration.",
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Optical, electrical and magnetic properties of fiber structure Zn0.99Mn0.01O films prepared by spray pyrolysis. / Sindhu, H. S.; Rajendra, B. V.; Kulkarni, Suresh D.; Babu, P. D.

In: Thin Solid Films, Vol. 655, 01.06.2018, p. 83-94.

Research output: Contribution to journalArticle

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AU - Rajendra, B. V.

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AU - Babu, P. D.

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N2 - Zn0.99Mn0.01O thin films were deposited on borosilicate glass at different temperatures and precursor concentration using cost-effective chemical spray pyrolysis. X-ray diffraction patterns revealed that all the deposits had a hexagonal wurtzite structure with (0 0 2) preferred orientation. The variation of deposition temperature and precursor concentration slightly modified the crystallite size and lattice parameters. The compositional analysis by Energy dispersive X-ray analysis indicated the presence of zinc and manganese. The films deposited at 723 K using 0.0125 M precursor exhibited ~90% transmittance in the visible region. The optical energy band-gap reduced when both deposition temperature and solution molarity were increased probably due to sp-d exchange interactions. All deposited films showed two emission peaks that is near band edge and deep level emissions in ultraviolet and visible region respectively. All films showed n-type electrical conductivity. The observed changes were due to the variation in charge carrier density and mobility in the films. Low-temperature magnetic studies showed that the films were super-paramagnetic when deposited using low precursor concentration while they were weakly ferromagnetic when deposited using higher precursor concentration.

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