Atomic force microscopy and high-resolution scanning electron microscopy study of the banded surface morphology of hydroxypropyl cellulose thin films

Polyaniline (PANI)–ZnO nanocomposite thin film has been successfully fabricated on glass substrates by using vacuum deposition technique. The as-grown PANI–ZnO nanocomposite thin films have been characterized using X-ray diffraction, Scanning Electron Microscopy, Atomic Force Microscopy, UV-visible spectrophotometer and Fourier Transform Infrared (FTIR) spectroscopy, respectively. X-ray diffraction of as-grown film shows the reflection of ZnO nanoparticles along with a broad peak of PANI. The surface morphology of nanocomposite films has been investigated using scanning electron microscopy and atomic force microscopy. The hypsochromic shift of the UV absorption band corresponding to π–π* transition in polymeric chain of PANI and a band at 504 cm –1 due to ZnO nanoparticles has been observed in the FTIR spectra. The hydrogen bonding between the imine group of PANI and ZnO nanoparticle has been confirmed from the presence of the absorbance band at 1151 cm–1 in the FTIR spectra of the nanocomposite thin films.

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Physical Properties of Nano-Structured Zinc Oxide Thin Films Deposited by Radio-Frequency Magnetron Sputtering

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.667.495 ◽

2013 ◽

Vol 667 ◽

pp. 495-500 ◽

Cited By ~ 1

Author(s):

I. Saurdi ◽

Mohamad Hafiz Mamat ◽

Mohamad Rusop

Keyword(s):

Electron Microscopy ◽

Thin Films ◽

Scanning Electron Microscopy ◽

Particle Size ◽

Atomic Force Microscopy ◽

Zno Thin Films ◽

Force Microscopy ◽

Atomic Force ◽

Substrate Temperatures ◽

Scanning Electron

In this work, ZnO thin films were deposited by RF Magnetron sputtering at different substrate temperatures in the range of 100-400oC on glass substrate. The thin films were characterized using field emission scanning electron microscopy (FESEM), atomic force microscopy (AFM), and I-V measurement, for morphology and electrical properties study. Field emission scanning electron microscopy (FESEM) and atomic force microscopy (AFM) were used to study the structural and morphology of the thin films. The particle size varied from 41nm to 146nm showing that the nucleation of ZnO thin films as the substrate temperatures increased. Higher particle size was observed as the substrate temperatures increased up to 400oC as well as high conductivity of thin films at 400oC.

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Electrical and Structural Properties of ZnO/TiO2 Nanocomposite Thin Films by RF Magnetron Co-Sputtering

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.667.206 ◽

2013 ◽

Vol 667 ◽

pp. 206-212 ◽

Cited By ~ 4

Author(s):

I. Saurdi ◽

Mohamad Hafiz Mamat ◽

Mohamad Rusop

Keyword(s):

Electron Microscopy ◽

Thin Films ◽

Scanning Electron Microscopy ◽

Atomic Force Microscopy ◽

Field Emission ◽

Deposition Time ◽

Force Microscopy ◽

Atomic Force ◽

Nanocomposite Thin Films ◽

Scanning Electron

In this study, the ZnO/TiO2 nanocomposite thin films were prepared by RF Magnetron co-sputtering ZnO and TiO2 targets at different deposition times from 30-75 minutes. The electrical and structural properties ZnO/TiO2 nanocomposite thin films were characterized by I-V measurement, atomic force microscopy (AFM) and field emission scanning electron microscopy (FE-SEM). The electrical characteristics of nanocomposite films revealed that the conductivity of thin films increases as the thickness increase due to the improvement in surface contact between particles as well as photocatalytic activity. High conductivity at 1.67x10-4 S/cm and lowest resistivity about 5.14x104 Ω/cm were obtained for 75 minutes deposition time. Atomic force microscopy (AFM) showed particle size of ZnO/TiO2 thin films varied from 27nm to 51nm with an increasing in deposition time with granular shapes structures were observed from field emission scanning electron microscopy (FE-SEM).

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Corrosion Behavior and Mechanical Properties of a Nanocomposite Superhydrophobic Coating

Coatings ◽

10.3390/coatings11060652 ◽

2021 ◽

Vol 11 (6) ◽

pp. 652

Author(s):

Divine Sebastian ◽

Chun-Wei Yao ◽

Lutfun Nipa ◽

Ian Lian ◽

Gary Twu

Keyword(s):

Electron Microscopy ◽

Mechanical Properties ◽

Scanning Electron Microscopy ◽

Atomic Force Microscopy ◽

Nanocomposite Coating ◽

Superhydrophobic Coating ◽

Force Microscopy ◽

Atomic Force ◽

Microscopy Images ◽

Scanning Electron

In this work, a mechanically durable anticorrosion superhydrophobic coating is developed using a nanocomposite coating solution composed of silica nanoparticles and epoxy resin. The nanocomposite coating developed was tested for its superhydrophobic behavior using goniometry; surface morphology using scanning electron microscopy and atomic force microscopy; elemental composition using energy dispersive X-ray spectroscopy; corrosion resistance using atomic force microscopy; and potentiodynamic polarization measurements. The nanocomposite coating possesses hierarchical micro/nanostructures, according to the scanning electron microscopy images, and the presence of such structures was further confirmed by the atomic force microscopy images. The developed nanocomposite coating was found to be highly superhydrophobic as well as corrosion resistant, according to the results from static contact angle measurement and potentiodynamic polarization measurement, respectively. The abrasion resistance and mechanical durability of the nanocomposite coating were studied by abrasion tests, and the mechanical properties such as reduced modulus and Berkovich hardness were evaluated with the aid of nanoindentation tests.

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