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Pregled bibliografske jedinice broj: 1058775

Strain transfer across grain boundaries in MoS2 monolayers grown by chemical vapor deposition


Niehues, Iris; Blob, Anna; Stiehm, Torsten; Schmidt, Robert; Jadriško, Valentino; Radatović, Borna; Čapeta, Davor; Kralj, Marko; de Vasconcellos, Steffen Michaelis; Bratschitsch, Rudolf
Strain transfer across grain boundaries in MoS2 monolayers grown by chemical vapor deposition // 2D Materials, 5 (2018), 3; 031003, 7 doi:10.1088/2053-1583/aaba9a (međunarodna recenzija, članak, znanstveni)


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Naslov
Strain transfer across grain boundaries in MoS2 monolayers grown by chemical vapor deposition

Autori
Niehues, Iris ; Blob, Anna ; Stiehm, Torsten ; Schmidt, Robert ; Jadriško, Valentino ; Radatović, Borna ; Čapeta, Davor ; Kralj, Marko ; de Vasconcellos, Steffen Michaelis ; Bratschitsch, Rudolf

Izvornik
2D Materials (2053-1583) 5 (2018), 3; 031003, 7

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
transition metal dichalcogenides ; strain ; excitons ; chemical vapor deposition second harmonic generation, grain boundary

Sažetak
Monolayers of transition metal dichalcogenides (TMDC) mechanically exfoliated from bulk crystals have exceptional mechanical and optical properties. They are extremely flexible, sustaining mechanical strain of about 10% without breaking. Their optical properties dramatically change with applied strain. However, the fabrication of a large number of mechanical devices is tedious due to the micromechanical exfoliation process. Alternatively, monolayers can be grown by chemical vapor deposition (CVD) on the wafer scale, with the drawback of cracks and grain boundaries in the material. Therefore, it is important to investigate the mechanical properties of CVD-grown material and its potential as a material for mass production of nanomechanical devices. Here, we measure the optical absorption of CVD-grown MoS2 monolayers with applied uniaxial tensile strain. We derive a strain-dependent shift for the A exciton of −42 meV/%. This value is identical to MoS2 monolayers, which are mechanically exfoliated from natural molybdenite crystals. Using angle- resolved second-harmonic generation spectroscopy, we find that the applied uniaxial tensile strain is fully transferred across grain boundaries of the CVD-grown monolayer. Our work demonstrates that large-area artificially grown MoS2 monolayers are promising for mass- produced nanomechanical devices.

Izvorni jezik
Engleski

Znanstvena područja
Fizika



POVEZANOST RADA


Projekti:
IP-2016-06-3211 - Optička svojstva heterostruktura dihalkogenida prijelaznih metala (OhTMD) (Kralj, Marko, HRZZ - 2016-06) ( POIROT)
EK-EFRR-KK.01.1.1.01.0001 - Potpora vrhunskim istraživanjima Centra izvrsnosti za napredne materijale i senzore (Ivanda, Mile; Jakšić, Milko; Stipčević, Mario; Kralj, Marko, EK - KK.01.1.1.01) ( POIROT)

Ustanove:
Institut za fiziku, Zagreb

Profili:

Avatar Url Davor Čapeta (autor)

Avatar Url Valentino Jadriško (autor)

Avatar Url Marko Kralj (autor)

Avatar Url Borna Radatović (autor)

Citiraj ovu publikaciju

Niehues, Iris; Blob, Anna; Stiehm, Torsten; Schmidt, Robert; Jadriško, Valentino; Radatović, Borna; Čapeta, Davor; Kralj, Marko; de Vasconcellos, Steffen Michaelis; Bratschitsch, Rudolf
Strain transfer across grain boundaries in MoS2 monolayers grown by chemical vapor deposition // 2D Materials, 5 (2018), 3; 031003, 7 doi:10.1088/2053-1583/aaba9a (međunarodna recenzija, članak, znanstveni)
Niehues, I., Blob, A., Stiehm, T., Schmidt, R., Jadriško, V., Radatović, B., Čapeta, D., Kralj, M., de Vasconcellos, S. & Bratschitsch, R. (2018) Strain transfer across grain boundaries in MoS2 monolayers grown by chemical vapor deposition. 2D Materials, 5 (3), 031003, 7 doi:10.1088/2053-1583/aaba9a.
@article{article, year = {2018}, pages = {7}, DOI = {10.1088/2053-1583/aaba9a}, chapter = {031003}, keywords = {transition metal dichalcogenides, strain, excitons, chemical vapor deposition second harmonic generation, grain boundary}, journal = {2D Materials}, doi = {10.1088/2053-1583/aaba9a}, volume = {5}, number = {3}, issn = {2053-1583}, title = {Strain transfer across grain boundaries in MoS2 monolayers grown by chemical vapor deposition}, keyword = {transition metal dichalcogenides, strain, excitons, chemical vapor deposition second harmonic generation, grain boundary}, chapternumber = {031003} }
@article{article, year = {2018}, pages = {7}, DOI = {10.1088/2053-1583/aaba9a}, chapter = {031003}, keywords = {transition metal dichalcogenides, strain, excitons, chemical vapor deposition second harmonic generation, grain boundary}, journal = {2D Materials}, doi = {10.1088/2053-1583/aaba9a}, volume = {5}, number = {3}, issn = {2053-1583}, title = {Strain transfer across grain boundaries in MoS2 monolayers grown by chemical vapor deposition}, keyword = {transition metal dichalcogenides, strain, excitons, chemical vapor deposition second harmonic generation, grain boundary}, chapternumber = {031003} }

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus


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