Russell Ohl
American scientist
Russell Shoemaker Ohl was an American scientist who is generally recognized for patenting the modern solar cell.
Ohl was a notable semiconductor researcher prior to the invention of the transistor. He was also known as R.S. Ohl. Wikipedia
Born: January 30, 1898, Allentown, PA
Died: March 20, 1987 (age 89 years), Vista, CA
Education: The Pennsylvania State University