Journal
ACS NANO
Volume 10, Issue 10, Pages 9550-9558Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acsnano.6b04898
Keywords
transition metal dichalcogenides; platinum diselenide; low-temperature synthesis; two-dimensional materials; sensors; optoelectronic devices
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Funding
- SFI [12/RC/2278, PI_10/IN.1/I3030]
- European Union [604391]
- Irish Research Council scholarship via the Enterprise Partnership Scheme [201517, 12508]
- Austrian Science Fund (FWF) Project [P25721-N20]
- ERC [307311]
- German Research Foundation (DFG) [LE 2440/1-2, GRK 1564]
- Vienna Science and Technology Fund [MA14-009]
- Austrian Science Fund (FWF) [P25721] Funding Source: Austrian Science Fund (FWF)
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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 degrees 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 PtSe2 on Si which act as both photodiodes and photovoltaic as a potential candidate for next-generation sensors and (opto-)electronic devices, using fabrication protocols compatible with established Si technologies.
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