Gold nanorods – Copper (I) oxide core-shell nanoparticles for full-visible to near-infrared responsive photodetectors

Arjona, Lourdes L. ; Garcia-Peiro, Jose I. (Universidad de Zaragoza) ; Haro, Marta (Universidad de Zaragoza) ; Hueso, Jose L. (Universidad de Zaragoza) ; Juarez-Perez, Emilio J.

Resumen: Photodetector devices were created using plasmonic gold nanorods (AuNRs) and cuprous oxide (Cu2O) semiconductor nanoparticles (NPs) in a core-shell design. The study evaluated the functionality and performance of Cu2O NP-based photodiode devices and explored the influence of Au NRs and surface plasmon resonance (SPR) on device response. Both Cu2O NP devices and core-shell AuNR@Cu2O NPs showed efficient photon absorption across a broad visible and near-infrared spectrum, with quick light/dark transitions. The devices exhibited electro-optical response on conductive substrates, demonstrating responsivity between 300 and 1800 nm wavelengths. These photoconductor-type devices alter electrical resistance when exposed to light under low bias voltage, displaying diverse photodetector responses.

Idioma: Inglés

DOI: 10.1016/j.jallcom.2025.179030

Año: 2025

Publicado en: JOURNAL OF ALLOYS AND COMPOUNDS 1016 (2025), 179030 [8 pp.]
ISSN: 0925-8388

Financiación: info:eu-repo/grantAgreement/ES/AEI/CEX2023-001286-S
Financiación: info:eu-repo/grantAgreement/ES/UZ-DGA/T57-23R

Tipo y forma: Article (PostPrint)

Área (Departamento): Área Ingeniería Química (Dpto. Ing.Quím.Tecnol.Med.Amb.)
Área (Departamento): Área Química Física (Dpto. Química Física)
Área (Departamento): Área Tecnologi. Medio Ambiente (Dpto. Ing.Quím.Tecnol.Med.Amb.)