Nickel doping in zinc oxide by MOCVD: structural and optical properties

Saravade, Vishal; Manzoor, Zahra; Corda, Alexis; Zhou, Caizhi; Ferguson, Ian T.; Lu, Luna

doi:10.1117/12.2543909

Cited by 6 publications

(5 citation statements)

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“…The bubbler temperatures of DEZn and Cp 2 Ni sources were maintained at 5 °C and 90-95 °C respectively to adequately vaporize the sources. [13] DEZn begins to decompose at 357 °C but high crystal quality is achieved by increasing the growth temperature (450 °C and above) at pressure ≥ 30 Torr. [14][15][16][17] The structural analysis of grown ZnO by the XRD shows an increased crystallinity for the growth temperature above 400 .…”

Section: Methodsmentioning

confidence: 99%

“…However, there have been limited investigations for the growth of Ni-doped ZnO with regards to the optimum growth temperature and pressure for the decomposition of Ni precursor for replacing Zn +2 with Ni +2 . [13] In this work, the structural and optical properties of Ni-doped ZnO grown by MOCVD were studied as a function of the growth system parameters. The Ni incorporation in ZnO structure and the resulting structural and optical properties of Ni-doped ZnO were strongly dependent on the substrate temperature and growth system pressure.…”

Section: Introductionmentioning

confidence: 99%

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Optical and Structural Properties of Nickel Doped Zinc Oxide Grown by Metal Organic Chemical Vapor Deposition (MOCVD) at Different Reaction Chamber Conditions

Manzoor¹,

Saravade²,

Corda³

et al. 2020

ES Mater.Manuf.

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Metal organic chemical vapor deposition (MOCVD) growth of nickel-doped zinc oxide (Ni-doped ZnO) thin films on sapphire was investigated. The structural and optical properties were studied. The samples were grown at two substrate temperatures (i.e., 450 and 550 °C) and at three chamber pressures (22, 30 and 100 Torr). The Ni-doped ZnO samples showed the (002) hexagonal crystal structure with signs of secondary phases in X-ray diffraction (XRD) measurements. However, different XRD peak intensities were observed for these samples at different growth conditions with the same Ni flow rate injection to the reaction chamber. The samples grown at different growth conditions had different optical absorption spectra. Results prove that the growth at a low pressure and temperatures close to the decomposition temperature of the precursors resulted in an optimum dopant incorporation, sharp absorption band edges, and good crystalline quality.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Optical and Structural Properties of Nickel Doped Zinc Oxide Grown by Metal Organic Chemical Vapor Deposition (MOCVD) at Different Reaction Chamber Conditions

Manzoor¹,

Saravade²,

Corda³

et al. 2020

ES Mater.Manuf.

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“…ISSN: 2278-0181 http://www.ijert.org By deriving optimum wing's width respect to the fabrication limits, layer's thickness can be determined. To control over layer's thickness precisely, among different growth techniques, metal organic chemical vapor deposition (MOCVD) is known as the best choice to control layer's thickness in nanometer range [14].…”

Section: International Journal Of Engineering Research and Technology (Ijert)mentioning

confidence: 99%

Wide Band E-Shaped Nano-Antenna with Asymmetric Hybrid Plasmonic Waveguide

Boroomandisorkhabi¹,

Rahimi²

2020

IJERT

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In this paper, a novel design of end-fire modified wide band E-shaped nano-antenna is introduced with higher gain compare with conventional design at frequency range from 190 THz to 200 THz. An asymmetric hybrid plasmonic waveguide is proposed to feed the designed nano-antenna with less radiation leakage from the waveguide part and high electric field confinement. Overall, far-field radiation of the proposed antenna specifically at higher frequencies is more directive than conventional design.

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“…Transition metal (TM) doping adds tunability to the properties of ZnO and could make it suitable for practical optical applications. [ 9–11 ] Among all TM elements, Mn has a half‐filled d‐orbital and it could be incorporated in the ZnO host lattice as Mn 2+ , Mn 3+ , or Mn 4+ states. As such, Mn has been chosen as a favorable candidate for doping ZnO owing to its environmental‐friendly nature, earth abundancy, and solubility in ZnO.…”

Section: Introductionmentioning

confidence: 99%

“…Metal‐organic chemical vapor deposition (MOCVD) has been an effective and scalable technique to grow device‐level high quality ZnO in both research laboratories as well as commercial companies. [ 10,21,22 ] MOCVD enables a controlled injection of the constituent sources, and produces consistent, high quality crystalline materials. Also, optical and structural properties could be tuned with varying the growth conditions such as the temperature, pressure, and flow rate of precursors.…”

Section: Introductionmentioning

confidence: 99%

Optical and Structural Properties of Manganese‐Doped Zinc Oxide Grown by Metal‐Organic Chemical Vapor Deposition

Saravade

Manzoor

Corda

et al. 2021

Advanced Optical Materials

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This systematic study investigates the optical properties and process−structure−property relationships of Mn‐doped zinc oxide (ZnMnO) grown by metal‐organic chemical vapor deposition with varying Mn‐doping concentration and growth conditions. ZnMnO exhibits a good crystal quality oriented in the (002) direction and contains intermixtures of zinc oxide (ZnO)‐like and manganese oxide (MnxOy)‐like phases. The material exhibits a direct energy absorption band‐edge and a reduction in bandgap with Mn‐doping. Photoluminescence studies show that Mn‐doping can simultaneously tailor broad green band luminescence and ultraviolet edge emissions. Post‐growth air‐annealing results in broad MnxOy‐related photoluminescence emissions at 3.3–4.5 eV. A further reduction in the absorption band‐edge is also observed with annealing. Results indicate that luminescence wavelengths and intensities, and absorption band‐edge can be tuned with the Mn‐doping process. This paper promotes a thorough understanding of defect centers in ZnO with transition metal doping and their interrelation with optical characteristics. The work provides a solid foundation for the development of optoelectronic devices, such as light emitting diodes, solar cells, lasers, and photodetectors using ZnO‐based materials.

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Nickel doping in zinc oxide by MOCVD: structural and optical properties

Cited by 6 publications

References 0 publications

Optical and Structural Properties of Nickel Doped Zinc Oxide Grown by Metal Organic Chemical Vapor Deposition (MOCVD) at Different Reaction Chamber Conditions

Optical and Structural Properties of Nickel Doped Zinc Oxide Grown by Metal Organic Chemical Vapor Deposition (MOCVD) at Different Reaction Chamber Conditions

Wide Band E-Shaped Nano-Antenna with Asymmetric Hybrid Plasmonic Waveguide

Optical and Structural Properties of Manganese‐Doped Zinc Oxide Grown by Metal‐Organic Chemical Vapor Deposition

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