Molybdenum Diselenide Monolayer Film

Monolayer MoSe₂ film has a direct bandgap of about 1.5 eV, making it one of the most desirable 2D-layered structures in photovoltaic single-junction solar cells and photoelectrochemical cells. Monolayer MoSe₂ film consists of two layers of Se atoms, with one layer of Mo atoms sandwiched in the middle (Se-Mo-Se).

Applications

Having a direct optical band gap of 1.48 eV with a photoluminescence peak at 840 nm, molybdenum diselenide monolayer film is ideal for applications in optoelectronics.

Also, with with its narrower bandgap, higher optical absorbance and larger spin-splitting energy than MoS_2, MoSe₂ ultrathin films are potentially better than MoS₂ for the applications in tunnel FETs and optoelectronic devices.

Synthesis

High-quality molybdenum diselenide monolayer film was grown directly on the substrates (SiO₂/Si) by the chemical vapour deposition (CVD) method.

Usage

MoSe₂ monolayer film can be used for research purposes such as microscopic analysis, photoluminescence and Raman spectroscopy studies. Monolayer MoSe₂ film can also be transferred to other substrates.

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Technical Data

Product Details

*Other sizes available: up to 2 cm × 2 cm.

High-quality molybdenum diselenide (MoSe₂) monolayer films are available on SiO₂/Si as standard. Different substrates of monolayer MoSe₂ films, including Sapphire, Glass, Silicon and Quartz are also available via custom order. 

Discontinuous isolated triangular crystals (crystal islands) films are also available via custom request. Please contact us for more information regarding custom products.

MSDS Document

Molybdenum diselenide monolayer film

Pricing Table

Literature and Reviews

• CVD synthesis of large-area, highly crystalline MoSe2 atomic layers on diverse substrates and application to photodetectors, J. Xia et al., Nanoscale, 6, 8949 (2014); DOI: 10.1039/c4nr02311k.
• Large-area synthesis of monolayer MoSe2 films on SiO2/Si substrates by atmospheric pressure chemical vapor deposition, Y. Zhao et al., RSC Adv., 7, 27969 (2017); DOI: 10.1039/c7ra03642f.
• Large-Area Synthesis of Monolayer and Few-Layer MoSe2 Films on SiO2 Substrates, X. Lu et al., Nano Lett. 2014, 14, 2419−2425 (2014); DIO: 10.1021/nl5000906.
• Large-Area Single-Layer MoSe2 and Its van der Waals Heterostructures, G. Shim et al., ACS Nano, 2014, 8 (7), 6655–6662 (2014); DIO: 10.1021/nn405685j.
• Chemical Vapor Deposition Growth of Crystalline Monolayer MoSe2, X. Wang et al., ACS Nano, 8 (5), 5125–5131 (2014); DOI: 10.1021/nn501175k.
• Monolayer MoSe2 Grown by Chemical VaporDeposition for Fast Photodetection, Y. Chang et al., ACS Nano, 8 (8), 8582–8590 (2014); DOI: 10.1021/nn503287m.
• Direct observation of the transition from indirect to direct bandgap in atomically thin epitaxial MoSe2, Y. Zhang et al., Nat. nanotech., 9, 111-115 (2014); DOI: 10.1038/NNANO.2013.277.