Bandgap and effective mass of epitaxial cadmium oxide

Laser energy tuning of carrier effective mass and thermopower in epitaxial oxide thin films

Substrate-induced bandgap opening in epitaxial graphene.

Graphene has shown great application potential as the host material for next-generation electronic devices. However, despite its intriguing properties, one of the biggest hurdles for graphene to be useful as an electronic material is the lack of an energy gap in its electronic spectra. This, for example, prevents the use of graphene in making transistors. Although several proposals have been ma...

Concurrent bandgap narrowing and polarization enhancement in epitaxial ferroelectric nanofilms

Perovskite-type ferroelectric (FE) crystals are wide bandgap materials with technologically valuable optical and photoelectric properties. Here, versatile engineering of electronic transitions is demonstrated in FE nanofilms of KTaO3, KNbO3 (KNO), and NaNbO3 (NNO) with a thickness of 10-30 unit cells. Control of the bandgap is achieved using heteroepitaxial growth of new structural phases on Sr...

Origin of the energy bandgap in epitaxial graphene.

S.Y. Zhou, 2 D.A. Siegel, 2 A.V. Fedorov, F. El Gabaly, A. K. Schmid, A.H. Castro Neto, and A. Lanzara 2 Department of Physics, University of California, Berkeley, CA 94720, USA Materials Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA Department of Physics, Boston Uni...

Synthesis and characterization of Cadmium Oxide nanoparticles for antimicrobial activity

Cadmium Oxide (CdO) nanoparticles were prepared by precipitation method using Cadmium acetate and ammonia solution. Presence of chemical species, were verified by Fourier Transform Infra Red (FTIR) Spectrum. From X-Ray Diffraction (XRD) spectrum the particle size, d-spacing value and structure of the nanoparticle were analysed. Size of the nanoparticles and the elemental composition were detect...