Russell Shoemaker Ohl was an American engineer who is generally recognized for patenting the modern solar cell. Ohl was a notable semiconductor researcher prior to the invention of the transistor.

Russell Shoemaker Ohl (January 1898 - March 1987) 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.

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.

That is how OHL energy was founded, as a tribute to this legacy and breakthrough.
Russell Ohl was indeed the "father" of discoveries that lead to the creation of OHL Energy

VISION

Our vision is focused on helping create a more sustainable future for our planet and its inhabitants. 
Through our work, commitment to new solutions, technologies we see clear opportunities to influence people's thinking and behaviors towards energy efficiency and the use of natural, sustainable methods of energy production and utilization. 

MISSION

The economic changes of our world require these new sources be reliable and immediate! OHL Energy is committed to supplying the most proven solar energy systems to every home solar property and commercial solar power property in World markets we serve. Our commitment to Cost Effectiveness  Quality and Efficiency will continue making an impact in the Renewable Energy Industry.