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Thin Ga2O3 Layers by Thermal Oxidation of van der Waals GaSe Nanostructures for Ultraviolet Photon Sensing (2024)
Journal Article
Cottam, N. D., Dewes, B. T., Shiffa, M., Cheng, T. S., Novikov, S. V., Mellor, C. J., Makarovsky, O., Gonzalez, D., Ben, T., & Patanè, A. (2024). Thin Ga2O3 Layers by Thermal Oxidation of van der Waals GaSe Nanostructures for Ultraviolet Photon Sensing. ACS Applied Nano Materials, 7(15), 17553-17560. https://doi.org/10.1021/acsanm.4c02685

Two-dimensional semiconductors (2DSEM) based on van der Waals crystals offer important avenues for nanotechnologies beyond the constraints of Moore's law and traditional semiconductors, such as silicon (Si). However, their application necessitates pr... Read More about Thin Ga2O3 Layers by Thermal Oxidation of van der Waals GaSe Nanostructures for Ultraviolet Photon Sensing.

Developing colloidal nanoparticles for inkjet printing of devices with optical properties tuneable from the UV to the NIR (2024)
Journal Article
Austin, J. S., Xiao, W., Wang, F., Cottam, N. D., Rivers, G., Ward, E. B., …James, T. S. (2024). Developing colloidal nanoparticles for inkjet printing of devices with optical properties tuneable from the UV to the NIR. Journal of Materials Chemistry C, https://doi.org/10.1039/D4TC01917B

Colloidal low-dimensional photo-sensitive nanomaterials have attracted significant interest for optoelectronic device applications where inkjet printing offers a high accuracy and low waste route for their deposition on silicon-based, as well as flex... Read More about Developing colloidal nanoparticles for inkjet printing of devices with optical properties tuneable from the UV to the NIR.

Quantum Nature of Charge Transport in Inkjet-Printed Graphene Revealed in High Magnetic Fields up to 60T (2024)
Journal Article
Cottam, N. D., Wang, F., Austin, J. S., Tuck, C. J., Hague, R., Fromhold, M., Escoffier, W., Goiran, M., Pierre, M., Makarovsky, O., & Turyanska, L. (2024). Quantum Nature of Charge Transport in Inkjet-Printed Graphene Revealed in High Magnetic Fields up to 60T. Small, 20(30), Article 2311416. https://doi.org/10.1002/smll.202311416

Inkjet‐printing of graphene, iGr, provides an alternative route for the fabrication of highly conductive and flexible graphene films for use in devices. However, the contribution of quantum phenomena associated with 2D single layer graphene, SLG, to... Read More about Quantum Nature of Charge Transport in Inkjet-Printed Graphene Revealed in High Magnetic Fields up to 60T.

Wafer-Scale Two-Dimensional Semiconductors for Deep UV Sensing (2023)
Journal Article
Shiffa, M., Dewes, B. T., Bradford, J., Cottam, N. D., Cheng, T. S., Mellor, C. J., …Patanè, A. (2024). Wafer-Scale Two-Dimensional Semiconductors for Deep UV Sensing. Small, 20(7), Article 2305865. https://doi.org/10.1002/smll.202305865

2D semiconductors (2SEM) can transform many sectors, from information and communication technology to healthcare. To date, top‐down approaches to their fabrication, such as exfoliation of bulk crystals by “scotch‐tape,” are widely used, but have limi... Read More about Wafer-Scale Two-Dimensional Semiconductors for Deep UV Sensing.

Thermally stable quantum Hall effect in a gated ferroelectric-graphene heterostructure (2023)
Journal Article
Dey, A., Cottam, N., Makarovskiy, O., Yan, W., Mišeikis, V., Coletti, C., …Patanè, A. (2023). Thermally stable quantum Hall effect in a gated ferroelectric-graphene heterostructure. Communications Physics, 6, Article 216. https://doi.org/10.1038/s42005-023-01340-8

The quantum Hall effect is widely used for the investigation of fundamental phenomena, ranging from topological phases to composite fermions. In particular, the discovery of a room temperature resistance quantum in graphene is significant for compact... Read More about Thermally stable quantum Hall effect in a gated ferroelectric-graphene heterostructure.

Photosensitisation of inkjet printed graphene with stable all-inorganic perovskite nanocrystals (2022)
Journal Article
Austin, J. S., Cottam, N. D., Zhang, C., Wang, F., Gosling, J. H., Nelson-Dummet, O., …Turyanska, L. (2023). Photosensitisation of inkjet printed graphene with stable all-inorganic perovskite nanocrystals. Nanoscale, 15(5), 2134–2142. https://doi.org/10.1039/d2nr06429d

All-inorganic perovskite nanocrystals (NCs) with enhanced environmental stability are of particular interest for optoelectronic applications. Here we report on the formulation of CsPbX3 (X is Br or I) inks for inkjet deposition and utilise these NCs... Read More about Photosensitisation of inkjet printed graphene with stable all-inorganic perovskite nanocrystals.