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| | Contact electrification - Wikipedia, the free encyclopedia |
 | | Contact electrification phenomenon allowed the construction of so-called 'frictional' electrostatic generators such as Ramsden's or Winter's machines, but it also led directly to the development of most modern electrical technology such as batteries, fuel cells, electroplating, thermocouples, and semiconductor junction devices including radio detector diodes, photocells, LEDs, and thermoelectric cells. |
 | | Thus contact electrification leads to the invention of the diode or rectifier and triggers the revolution in Semiconductor electronics and physics. |
 | | When light meets contact electrification, the light energy is changed directly into electrical energy, allowing creation of solar cells. |
| en.wikipedia.org /wiki/Contact_electrification (669 words) |
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