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- Russell_Ohl abstract "Russell Shoemaker Ohl (January 1898 - March 1987) was an American engineer who is generally recognized for patenting the modern solar cell (US Patent 2402662, "Light sensitive device").Ohl was a notable semiconductor researcher prior to the invention of the transistor. He was also known as R.S. Ohl.Russell Ohl’s specialized area of research was into the behavior of certain types of crystals. He worked on materials research in the 1930s at AT&T's Bell Labs’ Holmdel facility, investigating diode detectors suitable for high-frequency wireless, broadcasting, and military radar. His work was only understood by a handful of scientists in the organization, one of whom was Dr. Walter Brattain (one of the trio who invented the germanium bipolar transistor in 1947, and who would be awarded the Nobel Prize for Physics in 1956). Ohl, in 1939, discovered the PN barrier (or as it became known, the “P–N junction”). At the time hardly anyone knew anything about the impurities within these crystals, but Russell Ohl discovered the mechanism by which it worked. It was the impurities which made some sections more resistant to electrical flow than others, and thus it was the "barrier" between these areas of different purity that made the crystal work. Ohl later found that super-purifying germanium was the key to making repeatable and usable semiconductor material for diodes. All diodes (incl. LEDs, laser diodes etc.) are descendants of Ohl's work. His work with diodes led him later to develop the first silicon solar cells.".
- Russell_Ohl birthDate "1898".
- Russell_Ohl birthPlace Allentown,_Pennsylvania.
- Russell_Ohl birthPlace United_States.
- Russell_Ohl birthYear "1898".
- Russell_Ohl deathDate "1987".
- Russell_Ohl deathPlace United_States.
- Russell_Ohl deathPlace Vista,_California.
- Russell_Ohl deathYear "1987".
- Russell_Ohl field Engineering.
- Russell_Ohl residence United_States.
- Russell_Ohl viafId "160475962".
- Russell_Ohl wikiPageExternalLink 4804_1.html.
- Russell_Ohl wikiPageExternalLink Oral-History:Russel_S._Ohl.
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- Russell_Ohl birthPlace "Allentown, Pennsylvania, United States".
- Russell_Ohl dateOfBirth "1898".
- Russell_Ohl dateOfDeath "1987".
- Russell_Ohl deathPlace "Vista, California, United States".
- Russell_Ohl fields Engineering.
- Russell_Ohl hasPhotoCollection Russell_Ohl.
- Russell_Ohl name "Ohl, Russell".
- Russell_Ohl name "Russell Ohl".
- Russell_Ohl nationality "American".
- Russell_Ohl residence United_States.
- Russell_Ohl shortDescription "American engineer".
- Russell_Ohl workplaces Bell_Labs.
- Russell_Ohl workplaces Pennsylvania_State_University.
- Russell_Ohl description "American engineer".
- Russell_Ohl description "American engineer".
- Russell_Ohl subject Category:1898_births.
- Russell_Ohl subject Category:1987_deaths.
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- Russell_Ohl comment "Russell Shoemaker Ohl (January 1898 - March 1987) was an American engineer who is generally recognized for patenting the modern solar cell (US Patent 2402662, "Light sensitive device").Ohl was a notable semiconductor researcher prior to the invention of the transistor. He was also known as R.S. Ohl.Russell Ohl’s specialized area of research was into the behavior of certain types of crystals.".
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- Russell_Ohl givenName "Russell".
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- Russell_Ohl name "Ohl, Russell".
- Russell_Ohl name "Russell Ohl".
- Russell_Ohl surname "Ohl".