Soon we will be wearing solar cells
Solar cells are photovoltaic semiconductors. They are made of a p-type and n-type semiconductors sandwiched together. When light falls on the narrow depletion junction an electron hole pair is produced. These electron hole pairs drift away and create a small potential difference.
The more light shining on the pn junction the more electron hole pairs are produced which in turn creates a larger potential difference.
The only problem is that these cells are rigid. Check out this video below and news report to find out how they are being made flexible.
Pass that solar jumper please!
Categories: Physics News
3May
