Narayanan Unni studied Physics at C. M. S. College, Kottayam and obtained his B. Sc. in 1990. He received M. Sc. degree in Physics from School of Pure & Applied Physics, Mahatma Gandhi University with specialization in Materials Science in 1993. His Ph. D work on phthalocyanine thin films was carried out under the guidance of Prof. C. S. Menon at School of Pure & Applied Physics, Mahatma Gandhi University and the degree was awarded in 2001. Then he worked with Department of Physics, Indian Institute of Technology Bombay as a post-doctoral research associate on fabrication of diamond thin films and carbon nanotubes by microwave plasma chemical vapor deposition. In 2002, he joined Prof. Jean-Michel Nunzi’s group as a post-doctoral fellow in Laboratoire Propriétés Optiques des Matériaux et Applications (CNRS) at University of Angers, France and worked towards developing organic electronic devices. In 2005, he returned to India and joined Samtel Color Ltd, New Delhi and was posted at Indian Institute of Technology Kanpur as a visiting Research Engineer on deputation. His group developed organic light emitting diode (OLED) based displays for the first time in India. In 2008, he was promoted to be the team leader and by 2012 the group developed commercial quality prototypes. In July 2012, he joined Indian Institute of Technology Kanpur as a Principal Research Engineer and in April 2013, he joined National Institute for Interdisciplinary Science and Technology as Principal Scientist in the Photosciences and Photonics group. Under his leadership, a full-fledged device fabrication and characterization facility was set up for optoelectronic devices. At present, he is a Senior Principal Scientist and a Professor with the Academy of Scientific and Innovative Research (AcSIR). His current research interests are efficient lighting using OLEDs, sensing using OFETS, photodetectors and large area DSSC modules.