Vapor growth and photoconductive property of single-crystalline MoO3 nanosheets

• Single-crystalline MoO3 nanosheets were prepared by a facile PVD method.
• The as-deposited MoO3 nanosheets were single crystals and had smooth surfaces.
• Prototype devices were fabricated on the basis of individual MoO3 nanosheets and exhibited promising photoconductive response.

Molybdenum trioxide (MoO3) nanosheets were synthesized on Si substrate by a facile physical vapor deposition method and fully characterized by means of scanning electron microscopy, transmission electron microscopy, X-ray diffraction spectrometry, energy dispersive X-ray spectroscopy, and Raman spectroscopy. The characteristic spectra of both Raman and XRD demonstrated that the as-deposited nanosheets are highly pure and have perfect crystallinity of the orthorhombic-phase MoO3. Moreover, prototype devices based on individual MoO3 nanosheets were fabricated and exhibited promising photoconductive response upon the white light illumination. The result indicated that the as-deposited MoO3 nanosheets were of potential applications in optoelectronic devices.

Single-crystalline MoO3 nanosheets were prepared by a facile PVD method. The as-deposited MoO3 nanosheets were single crystals and had smooth surfaces. The prototype devices were fabricated on the basis of individual MoO3 nanosheets and exhibited promising photoconductive response.Figure optionsDownload as PowerPoint slide