Boron-Doped Graphene: Scalable and Tunable p-Type Carrier Concentration Doping

Boron doped graphene nanoribbons

Submitted for the MAR07 Meeting of The American Physical Society Boron doped graphene nanoribbons THIAGO MARTINS, Instituto de Fisica Universidade de Sao Paulo, HIROKI MIWA, Instituto de Fisica, Universidade Federal de Uberlandia, ANTONIO J.R. DA SILVA, A. FAZZIO, Instituto de Fisica Universidade de Sao Paulo — We will present a detailed study of the electronic, magnetic and transport propertie...

Compensation of native donor doping in ScN: Carrier concentration control and p-type ScN

Tunable doping and band gap of graphene on functionalized hexagonal boron nitride with hydrogen and fluorine.

First-principles calculations have been used to investigate the structural and electronic properties of graphene supported on functionalized hexagonal boron nitride (h-BN) with hydrogen and fluorine atoms. Our results show that the hydrogenation and fluorination of the h-BN substrate modify the electronic properties of graphene. Interactions of graphene with fully hydrogenated or fully fluorina...

Scalable production of graphene with tunable and stable doping by electrochemical intercalation and exfoliation.

Graphene's unique semimetallic band structure yields carriers with widely tunable energy levels that enable novel electronic devices and energy generators. To enhance the potential of this feature, a scalable synthesis method for graphene with adjustable Fermi levels is required. We here show that the electrochemical intercalation of FeCl3 and subsequent electrochemical exfoliation produces gra...

Tunable carrier multiplication and cooling in graphene.

Time- and angle-resolved photoemission measurements on two doped graphene samples displaying different doping levels reveal remarkable differences in the ultrafast dynamics of the hot carriers in the Dirac cone. In the more strongly (n-)doped graphene, we observe larger carrier multiplication factors (>3) and a significantly faster phonon-mediated cooling of the carriers back to equilibrium com...