294 citations · 525 across the 6 of their papers we have counts for
6 papers
Residual Metallic Contamination of Transferred Chemical Vapor Deposited Graphene
Grzegorz Lupina, Julia Kitzmann, Ioan Costina +15
Integration of graphene with Si microelectronics is very appealing by offering potentially a broad range of new functionalities. New materials to be integrated with Si platform mus…
Deposition of thin silicon layers on transferred large area CVD graphene
Grzegorz Lupina, Julia Kitzmann, Mindaugas Lukosius +3
Physical vapor deposition of Si onto transferred graphene is investigated. At elevated temperatures, Si nucleates preferably on wrinkles and multilayer graphene islands. In some ca…
Nucleation and growth of HfO layers on graphene by CVD
Grzegorz Lupina, Mindaugas Lukosius, Julia Kitzmann +3
A seed layer-free growth of HfO on commercially available CVD graphene from various suppliers is investigated. It is revealed that the samples of monolayer graphene transferred…
A Graphene-based Hot Electron Transistor
Sam Vaziri, Grzegorz Lupina, Christoph Henkel +6
We experimentally demonstrate DC functionality of graphene-based hot electron transistors, which we call Graphene Base Transistors (GBT). The fabrication scheme is potentially comp…
Molecular beam growth of graphene on mica
Gunther Lippert, Jarek Dabrowski, Yuji Yamamoto +5
We demonstrate molecular beam growth of graphene on biotite mica substrates at temperatures below 1000°C. As indicated by optical and atomic force microscopy, evaporation of carbon…
Vertical Graphene Base Transistor
Wolfgang Mehr, J. Christoph Scheytt, Jarek Dabrowski +5
We present a novel, graphene-based device concept for high-frequency operation: a hot electron graphene base transistor (GBT). Simulations show that GBTs have high current on/off r…