The Institute of Applied Photophysics (IAPP) at Dresden University and Heliatek GmbH of Dresden have again set an efficiency record for organic photovoltaic cells (OPVCs). An efficiency rate of 8.3 percent was set on an active surface area of 1.1 cm2, measured by Heliatek and independently confirmed by the Fraunhofer ISE CalLab in Freiburg, sets a new world record for OPVCs. Heliatek said all the materials used can be produced economically and processed efficiently as a photoactive layer in the company’s vacuum production unit. Heliatek’s technology is based on the thermal deposition of organic molecules in vacuum. Production processes carried out in vacuum are known from the semiconductor industry to be very stable and cost-effective. “With this new record-breaking efficiency for organic photovoltaic cells using small molecules we have succeeded to surpass, in the laboratory, the efficiency rates amorphous silicon PV cells typically achieve in current production units,” said Dr. Martin Pfeiffer, CTO at Heliatek. “At the same time we could prove the processibility of the novel light-absorbing molecules developed by Heliatek. We are convinced that in taking this step we have set another milestone in the global development of cost-effective, efficient solar modules.” Thomas Körner, VP of sales, marketing and business development at Heliatek said, “We are currently preparing to set up our first OPV production line in Dresden, in other words getting ready for commercial use on the basis of Heliatek’s patented p-i-n tandem organic photovoltaics technology. The efficiency record we have set is an excellent starting point for various areas of application, such as mobile electronic systems or roofing membrane systems for flat, lightweight roofs. This forms a basis for Heliatek’s future success as a provider of innovative, light, long-lasting PV modules on flexible substrates. The first products should be coming onto the market at the start of 2012.” For more information, visit: www.heliatek.com