Liquid-phase exfoliation is a technique capable of producing large quantities of two-dimensional materials in suspension. Despite many efforts in the optimization of the exfoliation process itself, not much has been done towards the integration of liquid-phase-exfoliated materials in working solid-state devices. In this article, we use dielectrophoresis to direct the assembly of liquid-phase-exfoliated TiS3 nanoribbons between two gold electrodes to produce photodetectors working in the visible region. Through electrical and optical measurements we characterize the responsivity of the device and we find values as large as 3.8 mA W-1, which are more than one order of magnitude higher compared to state-of-the-art devices based on liquid-phase-exfoliated two-dimensional materials assembled by drop-casting or ink-jet methods.
Dielectrophoretic assembly of liquid-phase-exfoliated TiS3 nanoribbons for photodetecting applications / Frisenda, R.; Giovanelli, E.; Mishra, P.; Gant, P.; Flores, E.; Sanchez, C.; Ares, J. R.; Perez De Lara, D.; Ferrer, I. J.; Perez, E. M.; Castellanos-Gomez, A.. - In: CHEMICAL COMMUNICATIONS. - ISSN 1359-7345. - 53:45(2017), pp. 6164-6167. [10.1039/c7cc01845b]
Dielectrophoretic assembly of liquid-phase-exfoliated TiS3 nanoribbons for photodetecting applications
Frisenda R.
Primo
;
2017
Abstract
Liquid-phase exfoliation is a technique capable of producing large quantities of two-dimensional materials in suspension. Despite many efforts in the optimization of the exfoliation process itself, not much has been done towards the integration of liquid-phase-exfoliated materials in working solid-state devices. In this article, we use dielectrophoresis to direct the assembly of liquid-phase-exfoliated TiS3 nanoribbons between two gold electrodes to produce photodetectors working in the visible region. Through electrical and optical measurements we characterize the responsivity of the device and we find values as large as 3.8 mA W-1, which are more than one order of magnitude higher compared to state-of-the-art devices based on liquid-phase-exfoliated two-dimensional materials assembled by drop-casting or ink-jet methods.| File | Dimensione | Formato | |
|---|---|---|---|
|
Frisenda_Dielectrophoretic assembly_2017.pdf
accesso aperto
Tipologia:
Versione editoriale (versione pubblicata con il layout dell'editore)
Licenza:
Creative commons
Dimensione
1.84 MB
Formato
Adobe PDF
|
1.84 MB | Adobe PDF |
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
