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Winton Programme for the Physics of Sustainability

Department of Physics

Studying at Cambridge

 

Mr Gabriel Constantinescu

Mr Gabriel Constantinescu

Winton Scholar

Supervisor: Dr Nicholas Hine

Theory of Condensed Matter Group


Biography:

 

PhD in Physics at the University of Cambridge, UK (2014 - date)
MPhil in Physics at the University of Cambridge, UK (2013 - 2014)
BSc in Physics at Jacobs University Bremen, Germany (2010 - 2013)

Research Interests

Van-der-Waals heterostructures

My research is aimed at the computational study of heterostructured layered materials. In the past decade, individual layered materials (such as graphene, hexagonal boron nitride and molybdenum disulphide) have proved their immense value in applications ranging from optoelectronics to photocatalytic water splitting. However, there is a pressing need for research into structures combining different layered materials, as these could allow a fine-grained selection of desired properties. Using recent advances in computational methodology (such as linear-scaling density functional theory and non-local van-der-Waals functionals), we are able to study such large and intricate systems in an accurate manner. The ultimate goal is to greatly improve the efficiency of electronic and optoelectronic devices, by employing appropriate combinations of layered materials.

Key Publications

N.R. Wilson, P.V. Nguyen, K. Seyler, P. Rivera, A.J. Marsden, Z.P.L. Laker, G.C. Constantinescu, V. Kandyba, A. Barinov, N.D.M. Hine, X. Xu, and D.H. Cobden - "Determination of band offsets, hybridization, and exciton binding in 2D semiconductor heterostructures"  - Science Advances 2017, 3, e1601832

G.C. Constantinescu, N.D.M. Hine - "Multipurpose Black-Phosphorus/hBN Heterostructures" - Nano Letters 2016, 16, 2586-2594

G.C. Constantinescu, N.D.M. Hine - "Energy landscape and band-structure tuning in realistic MoS2/MoSe2 heterostructures" - Phys. Rev. B 2015, 91, 195416

G. Constantinescu, A. Kuc, T. Heine - "Stacking in bulk and bilayer hexagonal boron nitride" - Phys. Rev. Lett. 2013, 111, 036104