IBM is taking new steps to make greener energy generation more common. The company has unveiled plans to create more efficient and less expensive solar cell systems. It will work with Japan-based Tokyo Ohka Kogyo to build what it calls the “next generation” of CIGS — or Copper-Indium-Gallium-Selenide — solar cell modules. The modules will use thin film — layers of material as thin as a single nanometer in width — to harness energy from the sun. It’s a new twist on a process already deep in development.
