Temperature dependence of kinetic behaviour of sol–gel deposited electrochromics

Autor:	J.P. Matthews, John Bell
Rok vydání:	2001
Předmět:	Reaction mechanism Renewable Energy Sustainability and the Environment Chemistry Diffusion Kinetics Thermodynamics chemistry.chemical_element Kinetic energy Surfaces Coatings and Films Electronic Optical and Magnetic Materials Electrochromism Electrode Lithium sense organs Sol-gel
Zdroj:	Solar Energy Materials and Solar Cells. 68:249-263
ISSN:	0927-0248
DOI:	10.1016/s0927-0248(00)00360-3
Popis:	The kinetic behaviour of sol-gel deposited electrochromic films is affected by temperature in a complex manner and may be modelled by considering the reaction mechanism, and in particular, the rate-limiting steps. If assumptions are made about the rate-limiting steps in a reaction, a model may be formed which can be used to provide information about the kinetic parameters such as diffusion coefficient and charge transfer resistance. Changes in the free energy of a reaction are observed as changes in the electrical potential associated with the cells and electrodes. We have measured changes in the switching characteristics of a sol–gel deposited electrochromic film and modelled these results in order to extract information about the change in lithium chemical diffusion coefficient ( D ) with temperature. Values of D estimated using the model described in this paper are in close agreement with those determined by other means, however there are some anomalies at high temperatures.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::bd67e90dc37bef3b5bf039e52f63200b https://doi.org/10.1016/s0927-0248(00)00360-3 Zobrazit plný text záznamu Full Text from ScienceDirect