ICONN is a biennial International Conference organized by the Department of Physics and Nanotechnology, SRM Institute of Science and Technology, that attracts researchers across the world, working in the areas of Nanoscience and Nanotechnology. Incepted in 2010, the conference has become an important event in the calendar for the scientists, academicians, researchers, industrialists and students to showcase their latest and significant findings. Previous editions (ICONN-2013, ICONN-2015, ICONN-2017, ICONN-2019 and ICONN-2021) were successfully conducted in association with Shizuoka University, Japan; GNS Science, New Zealand; National Yang Ming Chiao Tung University (NYCU), Taiwan; University of Rome Tor Vergata, Italy; Asian Consortium on Computational Materials Science (ACCMS), Japan, including national, international societies and research organizations. The conference has been sponsored by various funding agencies of Government of India such as Department of Science and Technology (DST), Science and Engineering Research Board (SERB), Defence Research and Development Organization (DRDO), Council of Scientific and Industrial Research (CSIR) and also by various private industries. ICONN-2023 comes up with the state-of-the-art themes added to popular sessions of previous version.