New organic electrochromic materials and theirs applieations

Purpose: The aim of this work is to perform the review of the recent most important results of experimental and theoretical investigations connected with the electrochromic materials and their selected applications. Design/methodology/approach: The recent achievements in the field of designing and preparation methods of organic electrochromic materials and devices operating as optical data storage are presented. Findings: We pointed out the physical phenomena that are important in the electrochromic effect occurring in organic materials and which can be used in numerous devices. Such phenomena as the change, evocation, or bleaching of color resulted either by an electron-transfer (redox) process or by a sufficient electrochemical potential have been evaluated as occurring in prosperous devices. Examples of the application of the organic electrochromic materials in electrochromic devices are shown. Research limitations/implications: The main disadvantage of organic devices are reported to be connected with their short lives and weak resistivity to the moist but the improvements are advancing. Originality/value: Our review concerns the most recent findings in this area. We also show some recent examples of electrochromic devices.