53 citations · 271 across the 21 of their papers we have counts for
21 papers
Graphene bandgap induced by ferroelectric Pca2 HfO substrate: a first-principles study
George Alexandru Nemnes, Daniela Dragoman, Mircea Dragoman
The electronic properties of graphene on top of ferroelectric HfO substrates in orthorhombic phase with space group Pca2 are investigated using density functional theory ca…
Wafer-scale fabrication and room-temperature experiments on graphene-based gates for quantum computation
Mircea Dragoman, Adrian Dinescu, Daniela Dragoman
We have fabricated at wafer scale graphene-based configurations suitable for implementing at room temperature one-qubit quantum gates and a modified Deutsch-Jozsa algorithm. Our me…
Solving the graphene electronics conundrum: high mobility and high on-off ratio in graphene nanopatterned transistors
Mircea Dragoman, Adrian Dinescu, Daniela Dragoman
Tens of graphene transistors with nanoperforated channels and different channel lengths were fabricated at the wafer scale. The nanoholes have a central diameter of 20 nm and a per…
Memristive GaN ultrathin suspended membrane array
Mircea Dragoman, Ion Tiginyanu, Daniela Dragoman +2
In this paper, we show that ultrathin GaN membranes having a thickness of 15 nm and planar dimensions of 12x184 microns act as memristive devices. This fact is due to the migration…
Room temperature nanostructured graphene transistors with high on-off ratio
Mircea Dragoman, Adrian Dinescu, Daniela Dragoman
We report the batch fabrication of graphene field-effect-transistors (GFETs) with nanoperforated graphene as channel. The transistors were cut and encapsulated. The encapsulated GF…
Room temperature on-wafer ballistic graphene field-effect-transistor with oblique double-gate
Mircea Dragoman, Adrian Dinescu, Daniela Dragoman
We have fabricated and measured ballistic graphene transistors with two oblique gates that can be independently biased. The gate lengths are about 38 nm and are separated by a dist…