Cobalt (Co) doped Zinc Oxide (ZnO) thin films, containing different amountof Cobalt nanoparticles as the Co doping source, deposited by the sol–gel spin coatingmethod onto glass via annealing temperature at 400˚C, have been investigated by opticalcharacterization method. The effect of Co incorporation on the surface morphology wasclearly observed from scanning electron microscopy (SEM) images. ...

For biodegradable polymers such as poly (Llactic acid) (PLLA), material crystallinity has a considerable effect on degradation and physical properties. In this work, the effects of laser fluence of a 355 nm UV Q-switched Nd-YAG laser on the crystallinity and conformation at the surface of PLLA films and the factors affecting the transformation are investigated. Electron microscopy, X-ray diffra...

The effect of temperature and water/thiourea ratio on the growth, crystallinity and morphological characteristics of CdS nanostructures synthetized by a solvothermal method using ethylenediamine as solvent were studied. The temperature and water/thiourea ratio used in the synthesis determine the surface area, shape, length and degree of crystallinity of the CdS nanostructures obtained. Nanowire...

This work reported a high quality photonic crystal film with an ultra-narrow photonic bandgap obtained via a chemical synthetic route. The bandgap is much narrower than that of traditional colloidal crystals, which makes the film qualified for use in optical devices. The narrow PBG originates from not only the high crystallinity and uniform orientations of microcrystals within the film but also...

ZnS thin film properties are overviewed in this research paper. These include absorbance, transmittance, optical band gap, refractive index and structure (on the basis of X-ray diffraction and scanning electron microscopy). It has been observed that these film properties are dependent on various parameters e.g. thickness of the film, deposition method, deposition rate, substrate material, subst...

In this study, we solely focused on the isolation of nano cellulose from the teak wood by adopting pulping and acid hydrolysis. Top down method is carried out in the extraction of Cellulosic nano fibrils. The removal of non-cellulosic constituents is monitored by FTIR-ATR and UV-Vis DRS Spectroscopic techniques throughout the isolation process. The acidic hydrolysis is applied to extract the na...

The purpose of this work is to investigate the relation of hydration and the degree of crystallinity for poly (ethylene oxide) (PEO) tablets using Raman spectroscopic methods and complementary thermal analysis for pharmaceutical interests. The influence of the tableting process is also investigated by measuring the degree of crystallinity and the melting point of PEO powder and tablets. The hyd...