DETERMINATION OF THE OPTIMAL MODES OF OPERATION OF ELECTROCHROMIC DEVICES

Abstract

Every year, the production volume of electrochromic devices steadily grows; the growth is associated with the spread of energy-saving technologies in many developed countries of the world. These electrochemical products are highly demanded and competitive, but the problems associated with their operation remain unresolved. The aim of the work was to increase the service life of electrochromic devices by determining the optimal ranges of their operation. A new operational evaluation parameter was considered – electrochromic productivity, based on the correlation of optical transmission and consumed electrical energy; the parameter makes it possible to take into account the influence of side uncontrolled processes unrelated to the electrochromic effect. The studies were carried out using the method of multi-stage electrical control actions developed by us. The optimal ranges for the functioning of ECD samples – made using different technologies –were determined; the ranges were from 100% to 40% of light transmission relating to the initial state. The electrochromic productivity for the inorganic technology was 4.8%∙cm2/(mW∙s), and for the organic technology it was 8.0%∙cm2/(mW∙s).