- Titel
- Electrochemically Exfoliated High-Quality 2H-MoS₂ for Multiflake Thin Film Flexible Biosensors
- Zitierfähige Url:
- https://nbn-resolving.org/urn:nbn:de:bsz:14-qucosa2-731713
- Quellenangabe
- Small: nano micro
Erscheinungsjahr: 2019
Jahrgang: 15
Heft: 23
Seiten: 1-10
E-ISSN: 1613-6829 - Erstveröffentlichung
- 2019
- Abstract (EN)
- 2D molybdenum disulfide (MoS₂) gives a new inspiration for the field of nanoelectronics, photovoltaics, and sensorics. However, the most common processing technology, e.g., liquid‐phase based scalable exfoliation used for device fabrication, leads to the number of shortcomings that impede their large area production and integration. Major challenges are associated with the small size and low concentration of MoS₂ flakes, as well as insufficient control over their physical properties, e.g., internal heterogeneity of the metallic and semiconducting phases. Here it is demonstrated that large semiconducting MoS₂ sheets (with dimensions up to 50 µm) can be obtained by a facile cathodic exfoliation approach in nonaqueous electrolyte. The synthetic process avoids surface oxidation thus preserving the MoS₂ sheets with intact crystalline structure. It is further demonstrated at the proof‐of‐concept level, a solution‐processed large area (60 × 60 µm) flexible Ebola biosensor, based on a MoS₂ thin film (6 µm thickness) fabricated via restacking of the multiple flakes on the polyimide substrate. The experimental results reveal a low detection limit (in femtomolar–picomolar range) of the fabricated sensor devices. The presented exfoliation method opens up new opportunities for fabrication of large arrays of multifunctional biomedical devices based on novel 2D materials.
- Andere Ausgabe
- Link zum Artikel der zuerst in der Zeitschrift 'Small' erschienen ist
DOI: 10.1002/smll.201901265 - Freie Schlagwörter (DE)
- elektrochemisches Peeling, Molybdändisulfid, flexible Folie, Ebola-Biosensor
- Freie Schlagwörter (EN)
- electrochemical exfoliation, molybdenum disulfide, flexible film, Ebola biosensor
- Klassifikation (DDC)
- 570
- 620
- Verlag
- Wiley-VCH, Weinheim
- Förder- / Projektangaben
- Deutsche Forschungsgemeinschaft (DFG)
Center for Advancing Electronics Dresden
(cfaed)
ID: 194636624 - European Research Council Controlled Synthesis of Two-Dimensional Nanomaterials for Energy Storage and Conversion
(2DMATER)
ID: 306972 - European Research Council Scalable and efficient production of functionalized, high-performance solution-processable graphene-materials
(HIPER-G)
ID: 768930 - European Research Council US EU-Flagship Workshop on Graphene and Beyond 2D Layered Materials and Devices
(EU Graphene Flagship)
ID: 1531829 - Initiative and Networking Fund of the German Helmholtz Association ID: VH‐KO‐606
- Version / Begutachtungsstatus
- publizierte Version / Verlagsversion
- URN Qucosa
- urn:nbn:de:bsz:14-qucosa2-731713
- Veröffentlichungsdatum Qucosa
- 17.12.2020
- Dokumenttyp
- Artikel
- Sprache des Dokumentes
- Englisch
- Lizenz / Rechtehinweis
