Sustainable energy refers to energy sources that can meet current energy needs without compromising the ability of future generations to meet their own needs Renewable sources such as wind, solar, and hydropower are the most commonly used sustainable energy sources.
The energy that never goes out of style
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Who invented solar cells?
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In his experiments, Edmond Becquerel demonstrated the photovoltaic effect by having two plates of platinum and gold immersed in an acid, neutral, or alkaline solution and exposing them to solar radiation. This was the very first electrochemical cell. It wasn’t very efficient at all, and was limited to laboratory applications.
In 1873, Willoughby Smith observed that Selenium was a very efficient material for the photovoltaic effect.
Later in 1881, Charles Fritts created the first solar cell that didn’t need to be bathed in a solution. The first solid state photovoltaic cell was selenium coated in a thin layer of gold. The device was only around 1% efficient but at the time, this was a huge discovery.
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1839 -The birth of the modern solar cell
Who invented the solar panels we see today? Russell S. Ohl was an American engineer who was a notable semiconductor researcher. In 1839, he discovered the P-N junction (having a positive side and a negative side inside a single crystal semiconductor). He studied the conductivity and properties of various types of crystals. His work with semiconductors and P-N junction led to things such as the transistor, LEDs and laser diodes, and in 1841, his creation of the first silicon solar cell, a design still used in today’s modern solar photovoltaic (PV) panels!
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