Fabrication of patterned TiO2 nanotube layers utilizing a 3D printer platform and their electrochromic properties

Autor: Kwang-Mo Kang, Seok-Han Lee, Sang-Youn Kim, Yoon-Chae Nah
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: Electrochemistry Communications, Vol 169, Iss , Pp 107833- (2024)
Druh dokumentu: article
ISSN: 1388-2481
DOI: 10.1016/j.elecom.2024.107833
Popis: Anodization enables nano-structure fabrication through electrochemical parameter control. While various approaches exist for creating localized or patterned oxide layers, many are complex and time-consuming. This study adopted a commercial 3D printer for high-speed (1 mm/s) anodization, forming TiO2 nanotube layers on Ti substrates in G-code-designed patterns. Comprehensive characterization using XRD, SEM, XPS, and simulated electric field distribution analysis revealed well-defined nanostructures and provided insights into the formation mechanism. Furthermore, viologen-anchored TiO2 showed significantly improved electrochromic performance compared to pristine TiO2, with a higher reflectance difference (46.2% vs. 6.85%). This 3D printing-anodization hybrid method offers a rapid approach to fabricating patterned TiO2 nanostructures, showing promise for electrochromic devices with enhanced optical modulation capabilities.
Databáze: Directory of Open Access Journals