Abstract
Single-layer transition-metal dichalcogenides (TMDs) attract considerable attention due to their interesting physical properties and potential applications. Here, we demonstrate the epitaxial growth of high-quality monolayer platinum diselenide (PtSe2), a new member of the layered TMDs family, by a single step of direct selenization of a Pt(111) substrate. A combination of atomic-resolution experimental characterizations and first-principles theoretic calculations reveals the atomic structure of the monolayer PtSe2/Pt(111). Angle-resolved photoemission spectroscopy measurements confirm for the first time the semiconducting electronic structure of monolayer PtSe2 (in contrast to its semimetallic bulk counterpart). The photocatalytic activity of monolayer PtSe2 film is evaluated by a methylene-blue photodegradation experiment, demonstrating its practical application as a promising photocatalyst. Moreover, circular polarization calculations predict that monolayer PtSe2 also has potential applications in valleytronics.
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References
Splendiani A et al (2010) Emerging photoluminescence in monolayer MoS2. Nano Lett 10:1271–1275. https://doi.org/10.1021/nl903868w
Eda G et al (2011) Photoluminescence from chemically exfoliated MoS2. Nano Lett 11:5111–5116. https://doi.org/10.1021/nl201874w
Tongay S et al (2012) Thermally driven crossover from indirect toward direct bandgap in 2D semiconductors: MoSe2 versus MoS2. Nano Lett 12:5576–5580. https://doi.org/10.1021/nl302584w
Zhang Y et al (2014) Direct observation of the transition from indirect to direct bandgap in atomically thin epitaxial MoSe2. Nat Nanotechnol 9:111–115. https://doi.org/10.1038/Nnano.2013.277
Ataca C, Sahin H, Ciraci S (2012) Stable, single-layer MX2 transition-metal oxides and dichalcogenides in a honeycomb-like structure. J Phys Chem C 116:8983–8999. https://doi.org/10.1021/jp212558p
Chhowalla M et al (2013) The chemistry of two-dimensional layered transition metal dichalcogenide nanosheets. Nat Chem 5:263–275. https://doi.org/10.1038/nchem.1589
Sipos B et al (2008) From Mott state to superconductivity in 1T-TaS(2). Nat Mater 7:960–965. https://doi.org/10.1038/nmat2318
Yang JJ et al (2012) Charge-orbital density wave and superconductivity in the strong spin-orbit coupled IrTe2:Pd. Phys Rev Lett 108:116402. https://doi.org/10.1103/PhysRevLett.108.116402
Tongay S et al (2014) Monolayer behaviour in bulk ReS2 due to electronic and vibrational decoupling. Nat Commun 5:3252
Wang YL et al (2015) Monolayer PtSe2, a new semiconducting transition-metal-dichalcogenide, epitaxially grown by direct selenization of Pt. Nano Lett 15:4013–4018. https://doi.org/10.1021/acs.nanolett.5b00964
Zhuang HLL, Hennig RG (2013) Computational search for single-layer transition-metal dichalcogenide photocatalysts. J Phys Chem C 117:20440–20445. https://doi.org/10.1021/jp405808a
Guo G, Liang W (1986) The electronic structures of platinum dichalcogenides: PtS2, PtSe2 and PtTe2. J Phys C: Solid State Phys 19:995
Dai D et al (2003) Trends in the structure and bonding in the layered platinum dioxide and dichalcogenides PtQ2 (Q=O, S, Se, Te). J Solid State Chem 173:114–121
Houas A et al (2001) Photocatalytic degradation pathway of methylene blue in water. Appl Catal B 31:145–157
Costi R, Saunders AE, Elmalem E, Salant A, Banin U (2008) Visible light-induced charge retention and photocatalysis with hybrid CdSe-Au nanodumbbells. Nano Lett 8:637–641
Wilson JA, Yoffe AD (1969) The transition metal dichalcogenides discussion and interpretation of the observed optical, electrical and structural properties. Adv Phys 18:193
Ullah K et al (2014) Synthesis and characterization of novel PtSe2/graphene nanocomposites and its visible light driven catalytic properties. J Mater Sci 49:4139–4147
Asahi R, Morikawa T, Ohwaki T, Aoki K, Taga Y (2001) Visible-light photocatalysis in nitrogen-doped titanium oxides. Science 293:269–271. https://doi.org/10.1126/science.1061051
Gole JL, Stout JD, Burda C, Lou YB, Chen XB (2004) Highly efficient formation of visible light tunable TiO2−xNx photocatalysts and their transformation at the nanoscale. J Phys Chem B 108:1230–1240. https://doi.org/10.1021/jp.030843n
Cao T et al (2012) Valley-selective circular dichroism of monolayer molybdenum disulphide. Nat Commun 3:887
Mak KF, He K, Shan J, Heinz TF (2012) Control of valley polarization in monolayer MoS2 by optical helicity. Nat Nanotechnol 7:494–498. https://doi.org/10.1038/nnano.2012.96
Zeng H, Dai J, Yao W, Xiao D, Cui X (2012) Valley polarization in MoS2 monolayers by optical pumping. Nat Nanotechnol 7:490–493. https://doi.org/10.1038/nnano.2012.95
Rycerz A, Tworzydło J, Beenakker C (2007) Valley filter and valley valve in graphene. Nat Phys 3:172–175
Xiao D, Yao W, Niu Q (2007) Valley-contrasting physics in graphene: magnetic moment and topological transport. Phys Rev Lett 99:236809
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Li, L. (2020). Monolayer PtSe2. In: Fabrication and Physical Properties of Novel Two-dimensional Crystal Materials Beyond Graphene: Germanene, Hafnene and PtSe2. Springer Theses. Springer, Singapore. https://doi.org/10.1007/978-981-15-1963-5_4
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DOI: https://doi.org/10.1007/978-981-15-1963-5_4
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