Preface

SPb Photonic, Optoelectronic & Electronic Materials (SPb-POEM) 2021 Hybrid Online-Onsite Conference National Research University Higher School of Economics in St. Petersburg 25-28 May 2021 A. Baldycheva 1, 2 and E. Berseneva 1, 2 1 University of Exeter, Exeter, UK 2 STEMM Global, London, UK This collection focuses on the most recent scientific and technological advances and innovations in the field of smart photonic and optoelectronic materials and systems for a wide range of applications presented at the 3rd SPb-POEM Hybrid Online-Onsite Conference which took place on 25-28 May 2021 at the National Research University Higher School of Economics in St. Petersburg. It covers a broad range of subjects from fabrication of nanomaterials, their characterisation and testing, to the engineering of prototype devices and systems for various applications. List of Keywords, Scientific Committee, Organising Committee, Editorial Board, Plenary Speakers, Keynote Speakers, Invited speakers, Organising Institutions, Supporters and Partners are available in this pdf.