scholarly journals Optical properties of high refractive index thin films processed at low-temperature

2012 ◽  
Vol 34 (8) ◽  
pp. 1366-1370 ◽  
Author(s):  
Mohamed Oubaha ◽  
Salem Elmaghrum ◽  
Robert Copperwhite ◽  
Brian Corcoran ◽  
Colette McDonagh ◽  
...  
Keyword(s):  
Thin Films ◽  
Refractive Index ◽  
Optical Properties ◽  
Low Temperature ◽  
High Refractive Index

The high refractive index of Gd2O3 thin films obtained by magnetron sputtering

2021 ◽  
Vol 120 ◽  
pp. 111382
Author(s):  
Yu.A. Kuznetsova ◽  
A.F. Zatsepin ◽  
N.V. Gavrilov
Keyword(s):  
Thin Films ◽  
Refractive Index ◽  
Magnetron Sputtering ◽  
High Refractive Index

High refractive index and other optical properties of heterogeneous media

JETP Letters ◽  
2000 ◽  
Vol 72 (9) ◽  
pp. 445-448 ◽  
Author(s):  
A. N. Oraevskii ◽  
I. E. Protsenko
Keyword(s):  
Refractive Index ◽  
Optical Properties ◽  
Heterogeneous Media ◽  
High Refractive Index

scholarly journals Preparation and Studying the Optical Properties of (Sb2o3) Thin Films

2018 ◽  
Vol 26 (10) ◽  
pp. 249-256
Author(s):  
Waleed Khalid Kadhim
Keyword(s):  
Thin Films ◽  
Dielectric Constant ◽  
Refractive Index ◽  
Optical Properties ◽  
Absorption Coefficient ◽  
Thermal Evaporation ◽  
Glass Slide ◽  
Antimony Trioxide ◽  
Hot Plate ◽  
Different Thickness

In this paper I present the preparation of (Sb2o3) thin films using thermal evaporation in vacuum, procedure with different thickness  (100 ,150 ,200 ,and 250) nm, by using ( hot plate) from Molybdenum matter at temperature in ( 9000c) and the period of time (15mint) ,the prepared in a manner thermal evaporation in a vacuum and precipitated on glass bases, pure Antimony Trioxide (sb2o3 ) thin films with various condition have been successfully deposited by (T.E.V) on glass slide substrates. The substrates temperature of about 100oC and the vacuum of about 10-6 torr, to investigated oxidation of evaporated, measure spectra for prepared films in arrange of wavelength (250 – 1100 nm). The following optical properties have been calculated: the absorption coefficient, the forbidden (Eg) for direct and indirect transitions "absorbance, refractive index,  extinction coefficient, real and imaginary parts" of the dielectric constant.

scholarly journals Deposition Time induced Structural and Optical Properties of Lead Tin Sulphide Thin Films

2021 ◽  
pp. 455-458
Author(s):  
J. Damisa ◽  
J. O. Emegha ◽  
I. L. Ikhioya
Keyword(s):  
Thin Films ◽  
Refractive Index ◽  
Optical Properties ◽  
Absorption Coefficient ◽  
Tin Oxide ◽  
Deposition Time ◽  
Deposition Process ◽  
Structural And Optical Properties ◽  
X Ray ◽  
Prepared Material

Lead tin sulphide (Pb-Sn-S) thin films (TFs) were deposited on fluorine-doped tin oxide (FTO) substrates via the electrochemical deposition process using lead (II) nitrate [Pb(NO3)2], tin (II) chloride dehydrate [SnCl2.2H2O] and thiacetamide [C2H5NS] precursors as sources of lead (Pb), tin (Sn) and sulphur (S). The solution of all the compounds was harmonized with a stirrer (magnetic) at 300k. In this study, we reported on the improvements in the properties (structural and optical) of Pb-Sn-S TFs by varying the deposition time. We observed from X-ray diffractometer (XRD) that the prepared material is polycrystalline in nature. UV-Vis measurements were done for the optical characterizations and the band gap values were seen to be increasing from 1.52 to 1.54 eV with deposition time. In addition to this, the absorption coefficient and refractive index were also estimated and discussed.

scholarly journals Annealing Effect on Some Optical Properties of Cr2O3 Thin Films Prepared by Spray Pyrolysis Technique

2011 ◽  
Vol 8 (2) ◽  
pp. 561-565
Author(s):  
Baghdad Science Journal
Keyword(s):  
Thin Films ◽  
Dielectric Constant ◽  
Refractive Index ◽  
Optical Properties ◽  
Absorption Coefficient ◽  
Spray Pyrolysis ◽  
Annealing Temperature ◽  
Spray Pyrolysis Technique ◽  
Annealing Effect ◽  
Before And After

Cr2O3 thin films have been prepared by spray pyrolysis on a glass substrate. Absorbance and transmittance spectra were recorded in the wavelength range (300-900) nm before and after annealing. The effects of annealing temperature on absorption coefficient, refractive index, extinction coefficient, real and imaginary parts of dielectric constant and optical conductivity were expected. It was found that all these parameters increase as the annealing temperature increased to 550°C.

scholarly journals Wide transparency range and high refractive index lead–niobium-germanate glass thin films

2004 ◽  
Vol 79 (8) ◽  
pp. 1907-1911 ◽  
Author(s):  
O. Sanz ◽  
J. Gonzalo ◽  
A. Perea ◽  
J.M. Fernández-Navarro ◽  
C.N. Afonso ◽  
...  
Keyword(s):  
Thin Films ◽  
Refractive Index ◽  
High Refractive Index ◽  
Germanate Glass

scholarly journals High refractive index in low metal content nanoplasmonic surfaces from self-assembled block copolymer thin films

2019 ◽  
Vol 1 (2) ◽  
pp. 849-857 ◽  
Author(s):  
Alberto Alvarez-Fernandez ◽  
Karim Aissou ◽  
Gilles Pécastaings ◽  
Georges Hadziioannou ◽  
Guillaume Fleury ◽  
...  
Keyword(s):  
Thin Films ◽  
Refractive Index ◽  
Block Copolymer ◽  
Metal Content ◽  
High Refractive Index ◽  
Nanostructured Surfaces ◽  
Plasmonic Nanoparticle ◽  
Nanoparticle Shape ◽  
Self Assembled

Block copolymer-templated gold nanostructured surfaces of high refractive index due to controlled plasmonic nanoparticle shape.

Optical Properties of NiO Thin Films: A Potential Material for Optoelectronic Devices

2012 ◽  
Vol 488-489 ◽  
pp. 103-108 ◽  
Author(s):  
Manisha Tyagi ◽  
Monika Tomar ◽  
Vinay Gupta
Keyword(s):  
Thin Films ◽  
Refractive Index ◽  
Optical Properties ◽  
Substrate Temperature ◽  
Band Gap ◽  
Urbach Energy ◽  
Rf Sputtering ◽  
Blue Shift ◽  
Structural Disorder ◽  
Near Ir

The influence of substrate temperature on the UV-Visible-near-IR optical properties, namely the band gap, the Urbach energy and the refractive index of NiO thin films deposited by RF sputtering has been investigated. The optical band gap of thin films showed the blue-shift in the transmission spectra with increase in the substrate temperature which is related to variation in carrier concentration of the deposited films. Urbach energy (EU) values indicate that the films deposited at 400 oC substrate temperature show least structural disorder. The refractive index of the films is found to decrease continuously with increase in the substrate temperature at all photon energies in the visible and near-IR region, and is attributed to the decreasing packing density of the films. Introduction

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