solar lights for garden

solar lights for garden

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Anatomic Features of the Solar Lights Cells

When two separate pieces of silicon those are electrically neutral are put together, the cells in solar lights wills start functioning. Reason is that with such togetherness, an electric field is created. Such electrical fields are formed as and when the N and P types of silicon come in contact with each others. 
Electric Field Functioning in Solar Cells 
When free electrons in the N side of the solar light cells find the openings on the P side, they rush in to fill the void. However, all free electrons will not fill all the voids. Usually they mix at the junction point and form some sort of barriers. This makes it harder for the electrons on the N side crossing over to P side. Finally, equilibrium is reached and electric field separating the two sides is created. That is how the solar light cells work. 
Electric Field and LED 
Electric field thus generated works as diode. It helps the electrons to flow from P to N sides but the reverse never happens. As and when the lights in form of photons hit the solar cells the energy breaks away from the whole pairs of electron. Normally each of the photons and energy free one electron that would result in free hole. 
Electron Flow 
It is the electron flow that provides current for the solar lights whether they are solar outdoor lights, garden lights, solar decorations, or even the solar fence caps. Using such current, the cells electric field creates voltage. Both current and voltage together constitutes the power. 
Preventing Reflections 
Silicon is one of the shiny materials. It can send the photons bouncing away and it can defeat the purpose of using the solar lights either indoor or outdoor as there will be no illumination. It is therefore necessary that the lights are absorbed instead of reflecting them out. Hence an anti reflective coating is used for the purpose of absorption of the light instead of reflecting them out. Such absorption helps to store the power and charge the battery in the solar lights. Usually a glass cover plate is used to prevent the reflections of light. 
PV modules contain multiple connected individual cells for achievement of useful voltage levels and current and putting them inside some sturdy frame can serve the purpose effectively.

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