Synthesis and characterization of two-dimensional carbon dots decorated with molybdenum oxide nanoflakes with various phases

The optical and morphological properties of the carbon dots (C-dots) decorated with reduced two-dimensional molybdenum oxide (MoO 3− x ) nanoflakes were investigated. Two dimensional flakes of MoO 3− x were decorated with C-dots (C-dots@MoO 3− x ) using a probe sonication process at room temperature. In the initial stage of the synthetic process, MoO 3 nanoflakes were studied before and after exfoliation. Furthermore, the optical and physical properties were studied and significant changes were found in the fabrication of the nanoflakes with varied sonication time intervals. The C-dots@MoO 3− x nanoflakes exhibit fluorescent property with maximum absorbance at longer wavelength (850 nm) in comparison to MoO 3− x nanoflakes. Demonstrated novel synthesis of two dimensional MoO 3 nanoflakes decorated by C-dots. Unique optoelectronic properties revealed at longer wavelength (850 nm).