TY - JOUR AU - Kotok, Valerii AU - Kovalenko, Vadym PY - 2017/04/26 Y2 - 2024/03/29 TI - The electrochemical cathodic template synthesis of nickel hydroxide thin films for electrochromic devices: role of temperature JF - Eastern-European Journal of Enterprise Technologies JA - EEJET VL - 2 IS - 11 (86) SE - Materials Science DO - 10.15587/1729-4061.2017.97371 UR - https://journals.uran.ua/eejet/article/view/97371 SP - 28-34 AB - <p>The influence of temperature on the synthesis of Ni(OH)<sub>2</sub> electrochromic films prepared using the cathodic template method has been investigated.</p><p>The influence of deposition temperature on the morphology of nickel hydroxide films has been determined. By means of scanning electron and atomic-force microscopy, it has been established that surface morphology depends on deposition temperature. The flattest film surface corresponded to a deposition temperature of 30 °С, which indicated high optical properties. The maximum profile shift of films deposited at different temperatures was 400nM, while for the film deposited at 30 °С – 212 nM.</p><p>By means of X-ray diffraction, it has been established that all films have crystal lattice similar to α-Ni(OH)<sub>2</sub>, with a high number of defects<span style="text-decoration: line-through;">в</span>. It also has been discovered that at a deposition temperature of 20–60 °С, a peak at 2q=16° appears on the diffraction pattern, the highest intensity of which corresponds to the process temperature of 30–40 °С.</p><p>By means of cyclic voltamperometry and recording of transmittance changes, it has been demonstrated that nickel hydroxide film deposited at 30 °С has the best electrochemical and optical properties. A partial correlation between optical and electrochemical properties of films deposited at different temperatures has been noted. </p> ER -