Louay Eldada is the CTO of HelioVolt, where he leads the development of photovoltaic technologies and products. He joined HelioVolt from DuPont Photonics, where he served as CTO and VP of engineering. Prior to his six-year tenure at DuPont, he founded and managed Telephotonics, which was acquired by DuPont. He previously worked at Honeywell, where he started the optoelectronics business and directed its technical development. The business was acquired by Corning, where he continued to manage technical development. Louay has 200 publications, organized 100 conferences, gave 160 invited talks, received 50 technical awards and has 40 patents. He holds a Ph.D. in optoelectronics from Columbia University.

Abstract
Photovoltaic integrated circuits (PVIC) with high-quality copper indium gallium selenide (CIGS) thin films are manufactured with the combination of low-cost ink-based precursor coating and a reactive transfer printing method, for use as solar skin in building-integrated photovoltaics (BIPV). This approach provides over an order of magnitude decrease in capital costs compared to vacuum deposition approaches, reduced energy payback time, high throughput, control of crystallographic orientation, and very high device quality materials.