scholarly journals Characterizations of Spray Deposited CdTe Thin Film

YMER Digital ◽  
2021 ◽  
Vol 20 (11) ◽  
pp. 83-90
Author(s):  
V.R Panse ◽  
Keyword(s):  
Thin Film ◽  
Spray Pyrolysis ◽  
Spray Pyrolysis Technique ◽  
Optical Absorption Coefficient ◽  
Cdte Thin Film ◽  
Promising Technique ◽  
X Ray ◽  
Elemental Stoichiometry ◽  
Sem Micrograph ◽  
Uv Visible

The spray pyrolysis is promising technique for deposition of CdTe thin film. We deposited CdTe thin film on glass substrate by homemade spray pyrolysis technique at substrate temperature 3000C. The CdTe thin film was characterized through Field scanning electron microscopy (FSEM), Energy dispersive X-ray analysis (EDAX), Uv-Visible spectroscopy. The SEM micrograph shows the film was uniform coverage, large number of densely packed grain whosesizes ranging from 474nm to 1.64µm. From EDAX analysis conform that the presenceof Cd and Te in prepared film with elemental stoichiometry of Cd and Se was 50.28% and 49.72% respectively. The optical absorption coefficient of the film of order of 106 and band gap of the film 1.45eV.

scholarly journals Development of Spray Pyrolysis System for Deposition of Nano-structure Materials

2015 ◽  
Vol 25 (2) ◽  
pp. 133
Author(s):  
Vuong Son ◽  
Nguyen Duc Chien ◽  
Truong Thanh Toan ◽  
Doan Tuan Anh ◽  
Mai Anh Tuan ◽  
...  
Keyword(s):  
Thin Film ◽  
Spray Pyrolysis ◽  
Spray Pyrolysis Technique ◽  
Thin Film Solar Cells ◽  
Dye Sensitized Solar Cell ◽  
X Ray Diffraction ◽  
Nano Structure ◽  
X Ray ◽  
Dye Sensitized ◽  
Scanning Electron

In this paper, we report the development of the spray pyrolysis technique for preparing different nano-structure materials toward the application in thin film solar cells. The spray pyrolysis system can heat up the substrate to 6000C with less than 0.01% full scale. The ramping rate can be set to 100C per minute. The effective coating area can be up to 100 x 100 mm2. Using this technique, the thickness and roughness of the films can be controlled. The obtained morphology, the microstructure of the thin-films, given by scanning electron microscope, X ray diffraction…showed that the system is suitable for deposition of different layers of the dye sensitized solar cell.

scholarly journals Effect of Cu-Doping on Urbach Energy and Dispersion Parameters of Cu:NiO Film Deposited by CSP

2015 ◽  
Vol 48 ◽  
pp. 138-145
Author(s):  
Mohammed Odda Dawood
Keyword(s):  
Thin Film ◽  
Spray Pyrolysis ◽  
Optical Conductivity ◽  
Urbach Energy ◽  
Spray Pyrolysis Technique ◽  
Dispersion Parameters ◽  
Cu Doping ◽  
Uv Visible ◽  
Absorbance Spectra

This work presents the effect of Cu-doping on Urbach energy and dispersion parameters of Cu:NiO thin film prepared by spray pyrolysis technique. UV-Visible spectrophotometer in the range 380-900 nm used to determine the absorbance spectra for various Cu-doping of Cu:NiO thin film. The absorbance and optical conductivity increased with increasing Cu-doping in the prepared films. Dispersion parameters that studied are decreased with increasing Cu-doping while Urbach energy increased.

scholarly journals Semitransparent Sb2S3 thin film solar cells by ultrasonic spray pyrolysis for use in solar windows

2019 ◽  
Vol 10 ◽  
pp. 2396-2409
Author(s):  
Jako S Eensalu ◽  
Atanas Katerski ◽  
Erki Kärber ◽  
Lothar Weinhardt ◽  
Monika Blum ◽  
...  
Keyword(s):  
Thin Film ◽  
Solar Cells ◽  
Solar Cell ◽  
Spray Pyrolysis ◽  
Scale Up ◽  
Ultrasonic Spray Pyrolysis ◽  
Thin Film Solar Cells ◽  
Optical Absorption Coefficient ◽  
X Ray ◽  
Ultrasonic Spray

The integration of photovoltaic (PV) solar energy in zero-energy buildings requires durable and efficient solar windows composed of lightweight and semitransparent thin film solar cells. Inorganic materials with a high optical absorption coefficient, such as Sb2S3 (>105 cm−1 at 450 nm), offer semitransparency, appreciable efficiency, and long-term durability at low cost. Oxide-free throughout the Sb2S3 layer thickness, as confirmed by combined studies of energy dispersive X-ray spectroscopy and synchrotron soft X-ray emission spectroscopy, semitransparent Sb2S3 thin films can be rapidly grown in air by the area-scalable ultrasonic spray pyrolysis method. Integrated into a ITO/TiO2/Sb2S3/P3HT/Au solar cell, a power conversion efficiency (PCE) of 5.5% at air mass 1.5 global (AM1.5G) is achieved, which is a record among spray-deposited Sb2S3 solar cells. An average visible transparency (AVT) of 26% of the back-contact-less ITO/TiO2/Sb2S3 solar cell stack in the wavelength range of 380–740 nm is attained by tuning the Sb2S3 absorber thickness to 100 nm. In scale-up from mm2 to cm2 areas, the Sb2S3 hybrid solar cells show a decrease in efficiency of only 3.2% for an 88 mm2 Sb2S3 solar cell, which retains 70% relative efficiency after one year of non-encapsulated storage. A cell with a PCE of 3.9% at 1 sun shows a PCE of 7.4% at 0.1 sun, attesting to the applicability of these solar cells for light harvesting under cloud cover.

scholarly journals Effects of Cu-Doping on Optical Properties of NiO

2015 ◽  
Vol 48 ◽  
pp. 155-162 ◽  
Author(s):  
Nidhal Nissan Jandow
Keyword(s):  
Thin Film ◽  
Optical Properties ◽  
Absorption Coefficient ◽  
Extinction Coefficient ◽  
Energy Gap ◽  
Spray Pyrolysis Technique ◽  
Skin Depth ◽  
Cu Doping ◽  
Uv Visible ◽  
Absorbance Spectra

This work presents the effect of Cu-doping on some optical properties of Cu:NiO thin film prepared by spray pyrolysis technique. UV-Visible spectrophotometer in the range 380-900 nm used to determine the absorbance spectra for various Cu-doping of Cu:NiO thin film. The transmittance and energy gap are decreased with increasing Cu-doping in the prepared films, while absorption coefficient, extinction coefficient, and skin depth are increased with increasing Cu-doping.

Investigation on V2O5 Thin Films Prepared by Spray Pyrolysis Technique

2018 ◽  
Vol 17 (03) ◽  
pp. 1760037 ◽  
Author(s):  
A. Nancy Anna Anasthasiya ◽  
K. Gowtham ◽  
R. Shruthi ◽  
R. Pandeeswari ◽  
B. G. Jeyaprakash
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Optical Properties ◽  
Spray Pyrolysis ◽  
Glass Substrate ◽  
Spray Pyrolysis Technique ◽  
Precursor Solution ◽  
Xrd Pattern ◽  
Good Crystallinity ◽  
Solution Volume

The spray pyrolysis technique was employed to deposit V2O5 thin films on a glass substrate. By varying the precursor solution volume from 10[Formula: see text]mL to 50[Formula: see text]mL in steps of 10[Formula: see text]mL, films of various thicknesses were prepared. Orthorhombic polycrystalline V2O5 films were inferred from the XRD pattern irrespective of precursor solution volume. The micro-Raman studies suggested that annealed V2O5 thin film has good crystallinity. The effect of precursor solution volume on morphological and optical properties were analysed and reported.

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