Question

Effect of tempreture in photovoltaic cell

Answer 1

Answer:

As the temperature of the solar panel increases, its output current increases exponentially, while the voltage output is reduced linearly.

In fact, the voltage reduction is so predictable, that it can be used to accurately measure temperature.

As a result, heat can severely reduce the solar panel's production of power.

Explanation:

Like all other semiconductor devices, solar cells are sensitive to temperature. Increases in temperature reduce the band gap of a semiconductor, thereby effecting most of the semiconductor material parameters. The decrease in the band gap of a semiconductor with increasing temperature can be viewed as increasing the energy of the electrons in the material. Lower energy is therefore needed to break the bond. In the bond model of a semiconductor band gap, reduction in the bond energy also reduces the band gap. Therefore increasing the temperature reduces the band gap.

Answer 2

$\large \green{ \fcolorbox{gray}{black}{ ☑ \: \textbf{Verified \: answer}}}$

• Photovoltaic cells generate electricity by absorbing sunlight and using that light energy to create an electrical current.
• When light shines on the cell it creates an electric field across the layers causing electricity to flow.
• Photovoltaic Cell are used to produce electricity which powers a water pump, well etc.