Humidity-controlled interactions and lifting of MoS2 on SiO2
Fabrication of 2D material devices under ambient conditions faces challenges from humidity-dependent interfacial interactions and doping effects due to intercalated water layers. This study explores adhesion and force dynamics for a monolayer of molybdenum disulfide (MoS _2 ) on silicon dioxide (SiO...
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| Format: | Article |
| Language: | English |
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IOP Publishing
2025-01-01
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| Series: | JPhys Materials |
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| Online Access: | https://doi.org/10.1088/2515-7639/adaaa1 |
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| author | Sebastiaan Haartsen Jantinus Wisman Harold J W Zandvliet Pantelis Bampoulis |
| author_facet | Sebastiaan Haartsen Jantinus Wisman Harold J W Zandvliet Pantelis Bampoulis |
| author_sort | Sebastiaan Haartsen |
| collection | DOAJ |
| description | Fabrication of 2D material devices under ambient conditions faces challenges from humidity-dependent interfacial interactions and doping effects due to intercalated water layers. This study explores adhesion and force dynamics for a monolayer of molybdenum disulfide (MoS _2 ) on silicon dioxide (SiO _2 ) as a function of humidity, using atomic force microscopy (AFM). At low humidity (<10%RH), capillary forces dominate due to a liquid bridge forming between the AFM tip and sample. At intermediate humidity 40%RH, an additional water layer intercalates between the MoS _2 and the SiO _2 and the capillary force model alone is insufficient to describe the tip-sample interactions. Force-distance spectroscopy reveals additional force dynamics related to MoS _2 -lifting and dynamics in the intercalated water. Above 60%RH, water condenses on the MoS _2 and the capillary interactions are reduced. Understanding and identifying these interactions is crucial for optimising deposition of 2D materials under humid conditions. |
| format | Article |
| id | doaj-art-6b6807ffb0f54b54a679d6f02fc51cf4 |
| institution | Kabale University |
| issn | 2515-7639 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | JPhys Materials |
| spelling | doaj-art-6b6807ffb0f54b54a679d6f02fc51cf42025-02-05T13:03:12ZengIOP PublishingJPhys Materials2515-76392025-01-018202500210.1088/2515-7639/adaaa1Humidity-controlled interactions and lifting of MoS2 on SiO2Sebastiaan Haartsen0https://orcid.org/0009-0005-2684-8725Jantinus Wisman1https://orcid.org/0009-0008-4133-904XHarold J W Zandvliet2https://orcid.org/0000-0001-6809-139XPantelis Bampoulis3https://orcid.org/0000-0002-2347-5223Physics of interfaces and nanomaterials, Faculty of Science and Technology, MESA+ Institute , University of Twente, Enschede, The NetherlandsPhysics of interfaces and nanomaterials, Faculty of Science and Technology, MESA+ Institute , University of Twente, Enschede, The NetherlandsPhysics of interfaces and nanomaterials, Faculty of Science and Technology, MESA+ Institute , University of Twente, Enschede, The NetherlandsPhysics of interfaces and nanomaterials, Faculty of Science and Technology, MESA+ Institute , University of Twente, Enschede, The NetherlandsFabrication of 2D material devices under ambient conditions faces challenges from humidity-dependent interfacial interactions and doping effects due to intercalated water layers. This study explores adhesion and force dynamics for a monolayer of molybdenum disulfide (MoS _2 ) on silicon dioxide (SiO _2 ) as a function of humidity, using atomic force microscopy (AFM). At low humidity (<10%RH), capillary forces dominate due to a liquid bridge forming between the AFM tip and sample. At intermediate humidity 40%RH, an additional water layer intercalates between the MoS _2 and the SiO _2 and the capillary force model alone is insufficient to describe the tip-sample interactions. Force-distance spectroscopy reveals additional force dynamics related to MoS _2 -lifting and dynamics in the intercalated water. Above 60%RH, water condenses on the MoS _2 and the capillary interactions are reduced. Understanding and identifying these interactions is crucial for optimising deposition of 2D materials under humid conditions.https://doi.org/10.1088/2515-7639/adaaa1atomic force microscopymolybdenum disulfidetwo-dimensional materialssurface interactionswater intercalationlifting |
| spellingShingle | Sebastiaan Haartsen Jantinus Wisman Harold J W Zandvliet Pantelis Bampoulis Humidity-controlled interactions and lifting of MoS2 on SiO2 JPhys Materials atomic force microscopy molybdenum disulfide two-dimensional materials surface interactions water intercalation lifting |
| title | Humidity-controlled interactions and lifting of MoS2 on SiO2 |
| title_full | Humidity-controlled interactions and lifting of MoS2 on SiO2 |
| title_fullStr | Humidity-controlled interactions and lifting of MoS2 on SiO2 |
| title_full_unstemmed | Humidity-controlled interactions and lifting of MoS2 on SiO2 |
| title_short | Humidity-controlled interactions and lifting of MoS2 on SiO2 |
| title_sort | humidity controlled interactions and lifting of mos2 on sio2 |
| topic | atomic force microscopy molybdenum disulfide two-dimensional materials surface interactions water intercalation lifting |
| url | https://doi.org/10.1088/2515-7639/adaaa1 |
| work_keys_str_mv | AT sebastiaanhaartsen humiditycontrolledinteractionsandliftingofmos2onsio2 AT jantinuswisman humiditycontrolledinteractionsandliftingofmos2onsio2 AT haroldjwzandvliet humiditycontrolledinteractionsandliftingofmos2onsio2 AT pantelisbampoulis humiditycontrolledinteractionsandliftingofmos2onsio2 |