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Photovoltaic Cell Working Principle Pdf Download

 
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MessagePosté le: Sam 29 Oct - 02:16 (2016)    Sujet du message: Photovoltaic Cell Working Principle Pdf Download Répondre en citant




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Photovoltaic Cell Working Principle Pdf Download

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When semiconductor materials are exposed to light, the some of the photons of light ray are absorbed by the semiconductor crystal which causes significant number of free electrons in the crystal. Rankine Cycle. For this configuration there will be a silicon atom for each boron atom, fourth valance electron of which will not find any neighbour valance electrons to complete its fourth covalent bond. While n-type semiconductor and p-type semiconductor contact each other, the free electrons near to the contact surface of n-type semiconductor get plenty of adjacent holes of p-type material. Basic Law of Conservation and First Law of Thermodynamics . Photovoltaic cell is the basic unit of the system where photovoltaic effect is utilized to produce electricity from light energy. The pentavalent dopants which donate their fifth free electron to the semiconductor crystal are known as donor. These excited electrons then get sufficient energy to migrate from valence band to conduction band. In n-type semiconductor mainly the free electrons carry negative charge and in p-type semiconductor mainly the holes in turn carry positive charge therefore free electrons in n-type semiconductor and free holes in p-type semiconductor are called majority carrier in n-type semiconductor and p-type semiconductor respectively.

Rankine Cycle and Regenerative Feed Heating. This potential difference is typically 0.5 V. This potential barrier is essential for working of a photovoltaic or solar cell. Power Plants and Types of Power Plant. Orientational Polarization. Arc Lamp. In this way one hole appears to disappear another neighbour hole. Fire Tube Boiler Operation and Types of Fire Tube Boiler.

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