Solar Cells And Its Effects On Earth

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Photovoltaic Cells
There are many resources that can be used to provide energy for life on earth. Some of those resources are better than others in terms of their environmental effect. An example of one of these “better” resources is the photovoltaic cell. A photovoltaic cell or solar cell converts light energy into electricity. This electricity in turn, can be used to power many aspects of human life such as; turning on lights or a television, charging a phone or driving a car. Photovoltaic cells also involve a great deal of chemistry from how they convert light energy to chemical energy, down to its own structural components. The basic process of energy conversion involves a semiconductor cell made of Silicon interacting with photons and
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The electrodes were also in an acidic solution and separated by a thin membrane (Bowden). His results showed that when light interacted with the electrode a voltage was formed. (Early Solar History). His experimental setup can be seen in the image below (Honsberg).

In 1877, W.G Adams and R.E. Day furthered Becquerel’s work by experimenting with a Selenium electrode. Selenium was used because it is a semi–conductor. In one of their experiments it was determined that solar energy can be converted directly into electricity. In their experiment a candle was lit, but its light was shielded from the Selenium. This was done so that it could be determined whether or not heat was what caused this flow of energy. But, when the flame was covered, no electricity was generated so it could be ruled out that thermal energy participated in this photovoltaic effect (Early Solar History).
Next came Charles Fritts. In 1883 he created the first solar cell. His solar cell was composed of selenium, copper, and gold. Even though his experiments had only 1% efficiency, he was able to determine that various forms of light such as, “dim daylight” can be used to generate electricity (Early Solar) History).
Around 1905 in a famous paper written by Einstein, it was stated that light comes in discrete packets called photons. This meant that wavelengths of light carry a different amount of energy with shorter
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