2 edition of Optical and physical properties of evaporated PbS film found in the catalog.
Optical and physical properties of evaporated PbS film
Murphy J Landry
by Dept. of Energy, for sale by the National Technical Information Service in [Washington], Springfield, Va
Written in English
|Statement||Murphy J. Landry, Photometric Division, and Robert A. Langley, Ion-Solid Interaction Division|
|Series||SAND ; 78-0300|
|Contributions||Langley, R. A. joint author, United States. Dept. of Energy, Sandia Laboratories. Photometrics Division, Sandia Laboratories. Ion-Solid Interactions Division|
|The Physical Object|
|Pagination||21 p. :|
|Number of Pages||21|
effect on the properties of the films. A variety of physical and chemical deposition. techniques have been developed for the deposition of thin} films of lead sulphide. Nobody has yet reported the pre paration of PbS thin films by the reactive evaporation tech nique. Stoichiometric as well as sulphur rich films can be prepared by this. The structure of evaporated films of eight different metals in thicknesses from 30 to A has been observed in the electron microscope and correlated with their optical properties. The stable form of films thinner than a characteristic thickness was found to be aggregated. For each film the absorptions for wave-lengths in the visible were determined from the measured transmissions and.
properties of PbS films deposited by PVD method. So, in this study, PbS films were deposited through PVD approach on conductive transparent oxide (TCO) substrates and effects of hydrogen gas on structural, morphological, optical, optoelectronic, and photovoltaic properties of the deposited PbS films were investigated. “The Structural, Electrical and Optical Properties of CdS Thin Films as a Function of pH,” Materials Chemistry and Physics (), CrossRef Google Scholar 4.
Thin films of a-Si:C have been prepared by thermal evaporation from resistive- and rf-induction-heated carbon crucibles. Samples were prepared with and without electron-beam irradiation of the substrate during deposition, and the resulting film properties (electrical and optical) were measured. SPIE Digital Library eBooks. Attempts at understanding the internal and external physical structure (i.e., morphology) of vapor-deposited thin films began with the discovery and early development of the PVD methods of sputtering by Grove in  and thermal evaporation by Faraday in .
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Get this from a library. Optical and physical properties of evaporated PbS film. [Murphy J Landry; R A Langley; United States. Department of Energy.; Sandai Laboratories.
Photometric Division.; Sandia Laboratories. Ion-Solid Interactions Division.]. Thin Solid Films, 61 () Elsevier Sequoia S.A., Lausanne-Printed in the Netherlands OPTICAL AND PHYSICAL PROPERTIES OF VACUUM-DEPOSITED PbS FILMS M. LANDRY AND R. LANGLEY* Sandia Laboratories, Albuquerque, N.M.
(U.S.A.) (Received August 3, ; accepted Decem ) We describe the film density, void volume, thickness, Cited by: 2. The density, void volume, thickness, reflectivity and crystal size of vacuum-vapor-deposited Pb1S/sub X/ films were determined.
Volume film Optical and physical properties of evaporated PbS film book, as determined from film thickness and areal film density measurements, varied from to g/cu cm or approximately one-half the density of bulk PbS (rho = g/cu cm). Film void volume measured from 49 to 61 : M.
Landry, R. Langley. Although many properties of PbS thin films deposited through different techniques have been investigated, all were performed on films deposited at room temperature. In this present work, however, we investigated the optical, surface and structural properties of PbS thin films deposited by RF sputtering in the 50– °C temperature range.
by: 4. Optical constants of vacuum-evaporated CdS thin film have been determined by spectroscopic ellipsometry in the photon energy range from to eV at room temperature. Thin films of PbS. Optical studies showed that the optical band gap of PbS films increased from to eV after Cr doping due to the quantum confinement effect; the 2% Cr-doped PbS nanofilm, with an Eg of determined.
Analysis of result showed that for co-evaporated PbSe films of different thicknesses direct transition occurs with band gap energies in the range eV to eV.
Refractive indices and extinction coefficients have been evaluated in the above spectral range. Keywords: X-ray diffraction, Optical properties, Band gap, Refractive.
The results of d.c. and a.c. conductivity measurements, as a function of temperature, and optical transmission through vacuum-evaporated amorphous films of Mg-Bi are presented.
Films have been prepared in high-and ultra high-vacuum conditions using both liquid nitrogen-and liquid helium-cooled substrates. Optical and electrical properties of PbS thin films grown by Chemically Bath Deposition[CBD] at different lead concentrations International Journal of Advanced Research in Physical Science (IJARPS) Page 27 0 10 20 30 40 50 60 70 80 90 % Wavelength [ nm ] M PbS M PbS.
Zinc oxide films have been fabricated by the electron beam physical vapour deposition (PVD) technique. The effect of substrate temperature during fabrication and annealing temperature (carried out in ultra high vacuum conditions) has been investigated by means of atomic force microscopy, scanning electron microscopy, powder X-ray diffraction, X-ray photoelectron spectroscopy and spectroscopic.
The optical properties of bismuth oxide thin films were measured for samples prepared by direct evaporation of Bi 2 O as−evaporated low−rate (1−5 Å/sec) films are microcrystalline, bismuth rich (relative to Bi 2 O 3), and their optical absorption edge broadens and shifts to lower energies.
High−rate (15−25 Å/sec) films are amorphous and oxygen−rich with an absorption edge. PbS/Polyvinylpyrrolidone (PVP) nanocomposites films with different volume fraction of PbS have been deposited from single molecular precursors.
X-ray diffraction patterns conforms the formation of PbS nanocrystals in PVP matrix. The transmission spectra of the films in the wavelength range of to nm show the absorption edges are blue shifted due to formation of PbS.
13 hours ago Photonic crystals employ optical properties based on optical, physical, chemical, and material science. Nanosilica particles have a high specific surface area and are widely used in nanotechnology research and biomedical applications.
In this study, nanosilica particles were fabricated by sol–gel methods, and the particle sizes of the silica nanoparticles were, and nm.
Tohidi T, Jamshidi-Ghaleh K, Namdar A and Abdi-Ghaleh R Comparative studies on the structural, morphological, optical, and electrical properties of nanocrystalline PbS thin films grown by chemical bath deposition using two different bath compositions Mater.
Sci. Semicond. Process. 25 – Crossref Google Scholar. ion, and the structural, electrical and optical properties of reactively evaporated lead sulphide and tin telluride thin films.
The three temperature method had been used effect on the properties of the films. A variety of physical and chemical deposition. r_~_= cm2V" s"" at BOOK.1 Amorphous films of PbS had been characterised. Effect of Thermal Annealing on Structure and Optical Properties of Poly(p-xylylene)–PbS Thin Films.
The Journal of Physical Chemistry C(16). Evaporated gold island films have been the subject of studies dealing with a variety of spectroscopic and sensing applications. Development of these and other applications requires film stability as well as tunability of the morphology and optical properties of the island films.
In the present work, ultrathin, island-type gold films were prepared by evaporation of − nm (nominal. Atomic force microscopy (AFM) was used to examine PbS surface.
The films exhibit more homogeneity. The root mean square(r.m.s), surface roughness and average grain size were increased After annealing. The optical properties of PbS thin films are studied as a function to wavelength in region (.
IN many substances, changes in chemical composition, pressure or temperature can induce metal-to-insulator transitions1. Although dramatic changes in optical and electrical properties. We review work on In 2 O 3:Sn films prepared by reactive e‐beam evaporation of In 2 O 3 with up to 9 mol % SnO 2 onto heated glass.
These films have excellent spectrally selective properties when the deposition rate is ∼ nm/s, the substrate temperature is ≳ °C, and the oxygen pressure is ∼5×10 − 4 Torr. Optimized coatings have crystallite dimensions ≳50 nm and a C‐type. Influence of annealing on physical properties of evaporated SnS films.
M Devika 1, N Koteeswara Reddy 2, K Ramesh 2, K R Gunasekhar 3, E S R Gopal 2 and K T Ramakrishna Reddy 1. Published 10 July • IOP Publishing Ltd Semiconductor. Valenzula-Jauregui JJ, Ramírez-Bon R, Mendoza-Galvan A, Sotelo-Lerma M: Optical properties of PbS thin films chemically deposited at different temperatures.
Thin Solid Films– /S(03) Article Google Scholar.The particles size ranged from to nm for PbS and – nm for PbSe. EDX results showed that PbS films have rich sulphur content, while PbSe films have rich lead content.
The optical constants (absorption coefficient and the refractive index) of the films .