Deposition of highly oriented ZnO films by spray pyrolysis and their structural, optical and electrical characterization

Lokhande, B. J.; Patil, Pramod S.; Uplane, M. D.

doi:10.1016/s0167-577x(02)00832-7

Cited by 84 publications

(26 citation statements)

References 14 publications

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“…Patil's group is a leading research group in obtaining high quality thin films by using spray pyrolysis in which various conditions such as substrate temperature, spray rate, concentration of solution and droplet size are investigated. Recently, they focused on preparing transparent conducting oxide films such as ZnO [98], SnO 2 [99] and doped SnO 2 [101], using spray pyrolysis, pulsed spray pyrolysis and electro-deposition processes.…”

Section: Spray Pyrolysis Research In Europe and Indiamentioning

confidence: 99%

Section: Environmental Clean-up 2-1 Preparation Of Catalysts By Spramentioning

confidence: 99%

“…Lokhande et al (2002) prepared zinc oxide film on glass substrate directly from methanolic solution of zinc acetate. Band gap energy, electrical resistivity and thermoelectric power were found to be affected by solution concentration [98]. For the first time, Rim et al applied spray pyrolysis method to the preparation of p-type transparent conducting oxide, copper aluminum oxide, in delafossite phase [155].…”

Section: Environmental Clean-up 2-1 Preparation Of Catalysts By Spramentioning

confidence: 99%

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Design of particles by spray pyrolysis and recent progress in its application

Jung

Park

Kang

2010

Korean J. Chem. Eng.

146

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Spray pyrolysis is a promising aerosol process to produce "designer particles" of precisely controlled morphology with decorations on surfaces or inside particles. Need of precise control of properties has sparked researches on aerosol process that may replace conventional processes such as solid state reaction process or liquid precipitation method. However, productivity is the biggest obstacle in the development of a commercial scale process because the aerosol process is essentially operated at low particle concentration compared to liquid phase processes. In this review, by reviewing publications for the last 10 years we discuss how researchers on spray pyrolysis circumvent this inherent limitation of the aerosol process. First, the process of particle design by spray pyrolysis is introduced. Some key criteria are explained for selecting each component of spray pyrolysis: precursor, additive, carrier gas, heat source, and reactor type. Second, key contributions of major groups in Korea, Japan, Europe, and America are described. Third, some of named processes to overcome productivity of spray aerosol process are introduced. Fourth, applications of spray pyrolysis to materials related to alternative energy, environmental cleaning, information processing and display, and biomaterials are considered. Finally, future prospects of spray pyrolysis are discussed along with current standing issues for further progress of spray pyrolysis.

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Section: Spray Pyrolysis Research In Europe and Indiamentioning

confidence: 99%

Section: Environmental Clean-up 2-1 Preparation Of Catalysts By Spramentioning

confidence: 99%

Section: Environmental Clean-up 2-1 Preparation Of Catalysts By Spramentioning

confidence: 99%

See 1 more Smart Citation

Design of particles by spray pyrolysis and recent progress in its application

Jung

Park

Kang

2010

Korean J. Chem. Eng.

146

View full text Add to dashboard Cite

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“…It can also be used as piezo electric devices and gas sensors (Kang and Joung 2007;Ferro 2009). Different methods have been employed to prepare the ZnO thin films, such as sputtering (Mahmood et al 1995;Liu et al 2007), thermal evaporation (Ma et al 1996), sol-gel method (Tsay et al 2010), electron beam evaporation method (Varnamkhasti et al 2012), pulsed laser evaporation (Zhao et al 2006), and spray pyrolysis technique (Lokhande et al 2002;Alver et al 2007;Sahay and Nath 2008).…”

Section: Introductionmentioning

confidence: 99%

Effect of annealing on the properties of zinc oxide nanofiber thin films grown by spray pyrolysis technique

2013

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Zinc oxide nanofiber thin films have been deposited on glass substrate by spray pyrolysis technique. The X-ray diffraction studies revealed that the films are polycrystalline with the hexagonal structure and a preferred orientation along (002) direction for films annealed for 1 h at 450°C. Further increase in annealing time changes the preferred orientation to (100) direction. The scanning electron microscopic analysis showed the formation of ZnO nanofiber with an average diameter of approximately 800 nm for annealed films. The compositional analysis of nanofiber ZnO thin films were studied by time of flight secondary ion mass spectroscopy, which indicated oxygen deficiency in the films. The optical properties of annealed films have shown a variation in the band gap between 3.29 and 3.20 eV. The electrical conductivity of the as grown and annealed films showed an increase in the conductivity by two orders of magnitude with increase in annealing duration.

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“…According to previous reports, decrease in the band-gap occurs due to the appearance of the band tail resulting from defects associated with the presence of cavities and surface roughness [43]. The decrease in the band-gap was also observed in sprayed ZnO films [31,44].…”

Section: Optical Propertiesmentioning

confidence: 74%