zero band gap of graphene leads to very low on-off ratios and thus limits its applications in electronic devices,such as transistors.Although some new 2D materials and doped graphene have nonzero band gaps,the electronic mobility is sacrificed.In this study,to open the band gap of graphene ...
Band GapGrapheneScanning Tunneling SpectroscopyPorphyrinsπ-π StackingGraphene has been recognized as a promising 2D material with many new properties. However, pristine graphene is gapless which hinders its direct application towards graphene-based semiconducting devices. Recently, various ways have been ...
graphenenanoribbonsprecursorsmoleculargapband CHEN ET AL. VOL. XXX ’ NO. XX ’ 000–000 ’ XXXX .acsnano A CXXXX American Chemical Society Tuning the Band Gap of Graphene Nanoribbons Synthesized from Molecular Precursors Yen-Chia Chen, †,‡, ) Dimas G. de Oteyza, †,§, ) Zahra Pe...
Photonic band gap of a graphene-embedded quarter-wave stack. Fan Y,Wei Z,Li H,Chen H,Soukoulis Costas M. Physical Review B Condensed Matter and Materials Physics . 2013Fan, Y., Wei, Z., Li, H., Chen, H. & Soukoulis, C. M. Photonic band gap of a graphene- 255 embedded quarter...
Band gap opening in the hybrid G/h-BN is sensitive to the interlayer distance and stacking arrangement. Charge redistribution in the graphene sheet determined the band gap opening where the onsite energy difference between carbon lattice atoms of G-sheet takes place. Similar behavior can be ...
Define Band gap. Band gap synonyms, Band gap pronunciation, Band gap translation, English dictionary definition of Band gap. n. The difference in energy between electron orbitals in which the electrons are not free to move and orbitals in which they are
Our theory is able to explain the observed gap behaviour by accounting first for the structural relaxation of graphene's carbon atoms when placed on a boron nitride substrate, and then for the influence of the substrate on low-energy p-electrons located at relaxed carbon atom sites. The ...
Specifically, the large band gap can be obtained when the number of nonmagnetic sp(2)-substructures on graphene basal plane is maximized. The principle indicates unequivocally what additive patterning should be used to attain the largest band gap for a given addition coverage. According to this ...
Graphene oxide (GO) is a graphene derivative that emits fluorescence, which makes GO an attractive material for optoelectronics and biotechnology. In this work, we utilize ozone treatment to controllably tune the band gap of GO, which can significantly enhance its applications. Ozone treatment in ...
Formation and control of band-gap in graphene by using low energy alkali metal ionsJinwook Chung