This item was submitted to Loughborough's Research Repository by the author. Items in Figshare are protected by copyright, with all rights reserved, unless otherwise indicated. The article discusses electrochromic organic and polymeric materials for display applications. It outlines the types, applications, and chemical classes of electrochromic materials, as well as experimental methods used in their study. The main classes of electrochromic organic and polymeric materials are surveyed, with examples based on transition metal coordination complexes, viologen systems, and conducting polymers. The article also covers the applications of such materials in electrochromic displays, including smart windows, reusable price labels, protective eyewear, and controllable light-reflective or light-transmissive display devices. It discusses the chemical classes of electrochromic materials, including metal coordination complexes, metal oxide films, viologens, and conducting polymers. The article also covers experimental methods for studying electrochromic materials, such as electrochemical polymerization, redox systems, and spectroscopic measurements. It discusses electrochromic polymers based on transition metal coordination complexes, including the reductive and oxidative electropolymerization of polypyridyl complexes, metallophthalocyanine electrochromic films, and viologen electrochromism and polymeric viologen systems. The article also discusses conjugated electrochromic polymers, including thiophenes and dioxythiophenes as electrochromic materials, and copolymers and n-dopable electrochromic polymers. Finally, it discusses functionalized electrochromic polymers and composites, including the layer-by-layer deposition of PEDOT:PSS with linear poly(ethylene imine), and the redox and electrochromic properties of films prepared by the layer-by-layer deposition of fully water soluble, self-doped polymers. The article concludes with a discussion of the electrochromic properties of various polymers, including their bandgaps, color changes, and applications in electrochromic displays.This item was submitted to Loughborough's Research Repository by the author. Items in Figshare are protected by copyright, with all rights reserved, unless otherwise indicated. The article discusses electrochromic organic and polymeric materials for display applications. It outlines the types, applications, and chemical classes of electrochromic materials, as well as experimental methods used in their study. The main classes of electrochromic organic and polymeric materials are surveyed, with examples based on transition metal coordination complexes, viologen systems, and conducting polymers. The article also covers the applications of such materials in electrochromic displays, including smart windows, reusable price labels, protective eyewear, and controllable light-reflective or light-transmissive display devices. It discusses the chemical classes of electrochromic materials, including metal coordination complexes, metal oxide films, viologens, and conducting polymers. The article also covers experimental methods for studying electrochromic materials, such as electrochemical polymerization, redox systems, and spectroscopic measurements. It discusses electrochromic polymers based on transition metal coordination complexes, including the reductive and oxidative electropolymerization of polypyridyl complexes, metallophthalocyanine electrochromic films, and viologen electrochromism and polymeric viologen systems. The article also discusses conjugated electrochromic polymers, including thiophenes and dioxythiophenes as electrochromic materials, and copolymers and n-dopable electrochromic polymers. Finally, it discusses functionalized electrochromic polymers and composites, including the layer-by-layer deposition of PEDOT:PSS with linear poly(ethylene imine), and the redox and electrochromic properties of films prepared by the layer-by-layer deposition of fully water soluble, self-doped polymers. The article concludes with a discussion of the electrochromic properties of various polymers, including their bandgaps, color changes, and applications in electrochromic displays.