Year: 2024
Type: article
Abstract: This study introduces the development of a W-M1.0 electrochromic film, characterized by a “coral”-like TiO2@WO3 heterostructure, synthesized via a hydrothermal process leveraging the inherent instability of MXene. The film showcases exceptional electrochromic performance, with a coloring response time of 2.8 s, a bleaching response time of 4.6 s, and a high coloring efficiency of 137.02 cm2C−1. It also demonstrates a superior light modulation ability of 73.83% at 1033 nm. Notably, the W-M1.0 film exhibits remarkable cyclic stability, retaining over 90% of its initial light modulation capacity after 4000 cycles, outperforming many existing electrochromic materials. The film’s enhanced performance is credited to its coral-like structure, which boosts the specific surface area and promotes ion transport, and the TiO2@WO3 heterojunctions, which enhance charge transfer and stabilize the material. Devices fabricated with the W-M1.0 film as the cathode and a PB film as the anode exhibit a seamless transition from dark blue to colorless, underscoring their potential for smart window and dynamic glass applications.
Source: Micromachines
DOI: 10.3390/mi15121486
Authors: Yuqi Wang, Yong Liu, Minmin Wang, Wenjun Wu, Maofei Tian, Tao Zhu
Institutions: Guizhou University, North University of China
Language: English
Subfield: Polymers and Plastics
Field: Materials Science
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $2,955
OpenAlex ID: W4405259050