NAGIOS: RODERIC FUNCIONANDO

Ultra-broad spectral photo-response in FePS3 air-stable devices

Repositori DSpace/Manakin

IMPORTANT: Aquest repositori està en una versió antiga des del 3/12/2023. La nova instal.lació está en https://roderic.uv.es/

Ultra-broad spectral photo-response in FePS3 air-stable devices

dc.contributor.author	Ramos, María
dc.contributor.author	Carrascoso, Félix
dc.contributor.author	Frisenda, Riccardo
dc.contributor.author	Gant, Patricia
dc.contributor.author	Mañas Valero, Samuel
dc.contributor.author	Esteras, Dorye L.
dc.contributor.author	Baldoví, José J.
dc.contributor.author	Coronado Miralles, Eugenio
dc.contributor.author	Castellanos-Gomez, A.
dc.contributor.author	Calvo, M. Reyes
dc.date.accessioned	2021-05-26T17:04:17Z
dc.date.available	2021-05-26T17:04:17Z
dc.date.issued	2021
dc.identifier.citation	Ramos, María Carrascoso, Félix Frisenda, Riccardo Gant, Patricia Mañas Valero, Samuel Esteras, Dorye L. Baldoví, José J. Coronado Miralles, Eugenio Castellanos-Gomez, A. Calvo, M. Reyes 2021 Ultra-broad spectral photo-response in FePS3 air-stable devices Npj 2d Materials And Applications 5 19
dc.identifier.uri	https://hdl.handle.net/10550/79462
dc.description.abstract	Van der Waals materials with narrow energy gaps and efficient response over a broadband optical spectral range are key to widen the energy window of nanoscale optoelectronic devices. Here, we characterize FePS3 as an appealing narrow-gap p-type semiconductor with an efficient broadband photo-response, a high refractive index, and a remarkable resilience against air and light exposure. To enable fast prototyping, we provide a straightforward guideline to determine the thickness of few-layered FePS3 nanosheets extracted from the optical transmission characteristics of several flakes. The analysis of the electrical photo-response of FePS3 devices as a function of the excitation energy confirms a narrow gap suitable for near IR detection (1.23 eV) and, more interestingly, reveals a broad spectral responsivity up to the ultraviolet region. The experimental estimate for the gap energy is corroborated by ab-initio calculations. An analysis of photocurrent as a function of gate voltage and incident power reveals a photo-response dominated by photogating effects. Finally, aging studies of FePS3 nanosheets under ambient conditions show a limited reactivity of the outermost layers of flakes in long exposures to air.
dc.language.iso	eng
dc.relation.ispartof	Npj 2d Materials And Applications, 2021, vol. 5, num. 19
dc.subject	Materials
dc.subject	Electrònica Aparells i instruments
dc.title	Ultra-broad spectral photo-response in FePS3 air-stable devices
dc.type	journal article	es_ES
dc.date.updated	2021-05-26T17:04:18Z
dc.identifier.doi	10.1038/s41699-021-00199-z
dc.identifier.idgrec	146972
dc.rights.accessRights	open access	es_ES