Gianluca Coletti is Chief Technology Officer at FuturaSun Holding Group and adjunct professor at UNSW in Australia. He has been Tandem Technology program manager at TNO Energy Transition and Senior Scientist at ECN Solar Energy in the Netherlands since 2004. His research focus on the development of innovative cells and modules technologies with heterojunction and polysilicon passivating contacts for Tandem applications. He is one of the world recognized experts in the area of defects in silicon and working in PV R&D and industry since 2000.