High-Performance Hybrid Electronic Devices from Layered PtSe2Films Grown at Low Temperature.
Layered two-dimensional (2D) materials display great potential for a range of applications, particularly in electronics. We report the large-scale synthesis of thin films of platinum diselenide (PtSe2), a thus far scarcely investigated transition metal dichalcogenide. Importantly, the synthesis by thermally assisted conversion is performed at 400 °C, representing a breakthrough for the direct integration of this material with silicon (Si) technology. Besides the thorough characterization of this 2D material, we demonstrate its promise for applications in high-performance gas sensing with extremely short response and recovery times observed due to the 2D nature of the films. Furthermore, we realized vertically stacked heterostructures of PtSe2on Si which act as both photodiodes and photovoltaic cells. Thus, this study establishes PtSe2as a potential candidate for next-generation sensors and (opto-)electronic devices, using fabrication protocols compatible with established Si technologies.
Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN) and Advanced Materials and BioEngineering Research (AMBER), Trinity College Dublin , Dublin 2, Ireland.|Department of Electrical Engineering and Computer Science, University of Siegen , Hölderlinstraße 3, 57076 Siegen, Germany.
Chanyoung
C
Yim
Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN) and Advanced Materials and BioEngineering Research (AMBER), Trinity College Dublin , Dublin 2, Ireland.
Kangho
K
Lee
Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN) and Advanced Materials and BioEngineering Research (AMBER), Trinity College Dublin , Dublin 2, Ireland.|School of Chemistry, Trinity College Dublin , Dublin 2, Ireland.
Niall
N
McEvoy
Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN) and Advanced Materials and BioEngineering Research (AMBER), Trinity College Dublin , Dublin 2, Ireland.|School of Chemistry, Trinity College Dublin , Dublin 2, Ireland.
Maria
M
O'Brien
Department of Electrical Engineering and Computer Science, University of Siegen , Hölderlinstraße 3, 57076 Siegen, Germany.
Sarah
S
Riazimehr
Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN) and Advanced Materials and BioEngineering Research (AMBER), Trinity College Dublin , Dublin 2, Ireland.
Nina C
NC
Berner
Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN) and Advanced Materials and BioEngineering Research (AMBER), Trinity College Dublin , Dublin 2, Ireland.|School of Chemistry, Trinity College Dublin , Dublin 2, Ireland.
Conor P
CP
Cullen
Faculty of Physics, University of Vienna , Boltzmanngasse 5, A-1090 Vienna, Austria.
Jani
J
Kotakoski
Faculty of Physics, University of Vienna , Boltzmanngasse 5, A-1090 Vienna, Austria.
Jannik C
JC
Meyer
Department of Electrical Engineering and Computer Science, University of Siegen , Hölderlinstraße 3, 57076 Siegen, Germany.
Max C
MC
Lemme
Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN) and Advanced Materials and BioEngineering Research (AMBER), Trinity College Dublin , Dublin 2, Ireland.|School of Chemistry, Trinity College Dublin , Dublin 2, Ireland.
Georg S
GS
Duesberg
low-temperature synthesis; optoelectronic devices; platinum diselenide; sensors; transition metal dichalcogenides; two-dimensional materials