Nanosolar Inc. announced the appointment of Karl Steigele, a seasoned IBM executive, to the newly created position of president and chief operating officer, and the departure of CEO Eugenia Corrales, who has left the company to pursue other ventures. In addition, Guido Polko, will strengthen his role as executive chairman of Nanosolar’s board of directors, taking a more active role in the company. “We welcome Karl to Nanosolar and look forward to Guido’s continued leadership,” said Erik Stras...