Facile Hydrothermal Synthesis of Prussian Blue Films Using Hydrobromic Acid and their Electrochromic Properties

Autor: Zhiyuan Liu, Xiaoying Li, Mingqing Yang, Shiyu Zhang, Lei Wang, Chunhui Niu, Yong Lv
Rok vydání: 2023
Předmět:
Zdroj: International Journal of Nanoscience. 22
ISSN: 1793-5350
0219-581X
Popis: Prussian Blue (PB) films were directly grown on FTO glass by a hydrothermal method only using potassium ferricyanide and hydrobromic acid as raw reagents. Hydrobromic acid plays the role of both providing acidic conditions and as a reducing agent which improves the atomic utilization of the raw materials. The as-prepared PB devices exhibited multicolor electrochromic properties: Blue, green and transparent states, reversibly. The maximum optical modulations of PB device could reach the range of 47.7%. The PB films also have a fast coloration/bleaching time of 1.9/1.3[Formula: see text]s, respectively. This study provided a novel method for preparing PB films by a facile hydrothermal method.
Databáze: OpenAIRE