Light Sensitive Devices

Light Sensitive Devices Light-sensitive devices include photo cells, solar cells, photo-diodes, and photo-transistors.  Photo Cell It is a light-sensitive device in which the internal resistance changes with a change in light intensity. The resistance change is not proportional to the light striking it. The photo cell is made from light-sensitive material such as cadmium sulfide […]

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3D Solar Cell Systems

3D Solar Cell Systems 3D solar cell systems are based on the treatment of the reflection of sunlight on the surface of the solar cell where the reflection of sunlight on the surface of a silicon cell is over 30 % (view graph). This percentage represents a loss in efficiency even anti-reflection coating of light

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3D Solar Cells

Here, I will present my humble idea about 3D solar cells and include four design 3D. As we have already mentioned, the three-dimensional shape of the solar cells or the solar module, it is in order to catch the reflected light on the surface of the cell or the module, if we want to introduce

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Solar Concentrator PV Systems

In Concentrating Photovoltaics (CPV), a large area of sunlight is focused onto the solar cell with the help of an optical device. By concentrating sunlight onto a small area, this technology has three competitive advantages: Requires less photovoltaic material to capture the same sunlight as non-concentrating pv. It makes the use of high-efficiency but expensive multi-junction cells economically viable due

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Solar Cell | Photovoltaic Cell

A solar cell, or photovoltaic cell, is an electrical device that converts the energy of light directly into electricity by the photovoltaic effect, which is a physical and chemical phenomenon, solar cells are described as being photovoltaic, irrespective of whether the source is sunlight or an artificial light, a large majority of solar cells are made from silicon,

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Solar Energy Systems

The sun produces an unbelievable amount of energy that reaches the earth. The  amount of energy that is absorbed by the earth in one hour is more energy than mankind uses in one year. Solar Energy Systems The total amount of solar energy reaching the earth in one year is huge – twice as much

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SSC JE Electrical MCQ

1. The voltage wave v = Vm sin (wt – 15°) volts is applied across an AC circuit. If the current leads the voltage by 10° and the maximum value of currents is Im, then the equation of current is (a) i = Im sin (wt + 5°) amps (b) i = Im sin (wt

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