THE STRUCTURAL AND OPTICAL CHARACTERISTICS OF POLYVINYLPYRROLIDONE DOPED WITH NANO CRYSTAL NAF FILMS

Journal Title: Academic Research International - Year 2013, Vol 4, Issue 3

Abstract

 The samples of polyvinypolypiroddone were doped with nanostructure NaF by using different preparations such as a wet casting, quartz cell and spin - coating techniques with concentrations (0,2,4,6,8,10,12,14wt%). The X – Ray diffraction of the samples indicate that the pure PVP are amorphous structure and the doped are polycrystalline for selective concentrations (4, 8, 12, 14) wt% with nano crystal grain size (30.10, 26.00, 22.88,31.79) nm respectively. It was observed that the amorphaousation decreases with increasing NaF concentration. The Fourier Transform Infrared (FTIR) spectrometer measurements show that the stretching vibration in the oxygen containing chain polymer with change the covalent bond distribution with fluoride ion bonds that is the greatest. Increasing UV-vis absorption spectrometer refers to a maximum peak absorbance spectra of different techniques have about (0.5-0.6) values, and there are a high shiftingin a casting method. The indirect Egopt of pure and doped PVP films were estimated to be decrease about (3.65, 3.57, 3.55, 3.45, 3.33), and 3.25 eV for indirect allowed transitions, whereas the indirect forbidden band gaps were determined as (3.52, 3.50, 3.41, 3.31, 3.18) and 3.13 eV with increase sodium fluoride contents respectively. All prepared samples appeared near band edge peak absorption at about (300nm) of different deposition, it close to each other for bulk specimens (solution), shifting at higher frequencies.

Authors and Affiliations

Faisal A. Mustafa

Keywords

Related Articles

DEMOGRAPHIC CHARACTERISTICS AS CORRELATES OF ACADEMIC ACHIEVEMENT OF UNIVERSITY STUDENTS

This study was designed to find out the relationship of demographic characteristics with academic achievement of university students. The relationship of selected demographic characteristics including gender, age, loca...

COMPARATIVE EVALUATION OF ARTIFICIAL LIFT METHODS ON A NIGER DELTA FIELD

During the reservoir production life reservoir pressure will decline. Also after water breakthrough the fluid column weight will increase as hydrostatic pressure will increase because of increased water and oil mixture d...

 A RETREAT TO A WORLD OF IMAGINATION FARNOOSH MOSHIRI'S AT THE WALL OF THE ALMIGHTY:

 The writings of Farnoosh Moshiri mainly deal with the relationship of some individuals with the political regime in Iran in the period before and after the 1979 revolution and what these characters encounter of suf...

Investigation into Negative Activities towards Electoral Process in Nigeria and the Needs for proper Education and orientation

The Paper investigated negative activities towards Electoral Process in Nigeria and the needs for Education especially negative attitude of populace, activities of the mass media and use of electoral materials. This Pape...

The Impact of Cropping Systems on Fertility Status of Soil in Babanla Rural Area, Nigeria

This study was carried out to examine the impact of cropping systems on fertility status of soil in Babanla rural community of Kwara State, Nigeria. Two farms sites of mono cropping and mixed cropping and a fallow land (...

Download PDF file
  • EP ID EP151487
  • DOI -
  • Views 108
  • Downloads 0

How To Cite

Faisal A. Mustafa (2013).  THE STRUCTURAL AND OPTICAL CHARACTERISTICS OF POLYVINYLPYRROLIDONE DOPED WITH NANO CRYSTAL NAF FILMS. Academic Research International, 4(3), 125-141. https://europub.co.uk/articles/-A-151487