309 research outputs found
Effect of Thickness Variation of the N-Type Layer in CdS/CdTe Solar Cell
In this paper, we have prepared thin films by thermal evaporation on an ITO coated glass substrate. The thin film of an n-type material of CdS, having thickness as100, 150 and 200 nm, and also deposited CdTe film having a thickness 1μm over these films. We used the Silver paste to generate front and back contact for solar cell characterization. To increase the efficiency of solar cells the CdCl2 treatment has done with heat treatment using the furnace at 4000 C for 30 minutes for crystalline the structure. The UV-VIS-NIR spectrometer had used to study the optical absorption between 300-1100 nm, its transmission graph shows that the solar cell absorbed wavelength below 800nm. To study the I-V characteristics of solar cells we have used Keithley constant current supply, the result showed that the efficiency of solar cell increase 6.42, 7.07 and 9.10% with increasing thickness of an n-type layer of CdS (100,150 and 200nm respectively) and the SEM was described surface morphology of thin films
Fixed point sets and orbit spaces of wedge of three spheres
Let be a finite CW-complex having mod cohomology isomorphic to a
wedge of three spheres . The aim of this paper is to determine the fixed point sets of
actions of the cyclic group of prime order on We also classify the orbit
spaces of free actions of a prime or
on and derive the Borsuk-Ulam type results
Orbit spaces of free involutions on the product of three spheres
In this paper, we have determined the orbit spaces of free involutions on a
finitistic space having mod 2 cohomology of the product of three spheres
.
This paper generalizes the results proved by Dotzel et al. [6] for free
involutions on the product of two sphere $\mathbb{S}^n \times
\mathbb{S}^m,1\leq n\leq m.
Involution on the product of projective space and sphere
Let act on a finite CW-complex having mod 2 cohomology
isomorphic to the product of projective space and sphere where or In this paper, we
have determined the connected fixed point sets and the orbit spaces of free
involutions on As an application, we derive the Borsuk-Ulam type results
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