Facile and controllable fabrication of multifunctional nanohybrid films composed of reduced graphene oxide and titanium dioxide through layer-by-layer assembly
- Facile and controllable fabrication of multifunctional nanohybrid films composed of reduced graphene oxide and titanium dioxide through layer-by-layer assembly
- 김영관; 장홍제; 강경태
- Graphene oxide; Hybrid films; Layer-by-layer assembly; Surface modification; Titanium (IV) bis(ammonium lactato) dihydroxyde; Self-cleaning; UV protection; Transparent electrode
- Issue Date
- Thin solid films
- VOL 636-366
- A facile fabrication strategy of multi-functional hybrid thin films of reduced graphene oxide (RGO) and TiO2 was developed by using layer-by-layer (LBL) assembly of titanium(IV) bis(ammonium lactato)dihydroxide (TALH) and polyallylamine grafted reduced graphene oxide (PAA-RGO) as negatively and positively charged components. The fabrication process of hybrid films was thoroughly characterized by using UV– vis spectroscopic, ellipsometric and atomic force microscopic analysis. This fabrication strategy provided precisely-controlled thickness, surface roughness through 1– 10 LBL assembly cycles. By thermal treatment, the PAA-RGO and TALH in the hybrid films were respectively converted into RGO and TiO2 with the restoration of their electrical conductivity, UV-resistance and photo-catalytic self-cleaning properties.
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