Work

Synthesis of flexible and sub-microstructured gold thin films with honeycomb cavities

Year: 2024

Type: article

Abstract: The synthesis of flexible adhesive tapes consisting of a sub-microstructured gold thin film with honeycomb cavities is reported for the first time. The tape was fabricated by transferring the sub-microstructured Au thin film from a rigid substrate to a transparent tape by a “paste and peel off” process. The geometrical properties of the Au honeycomb cavities were extensively analyzed using SEM and AFM images. Their optical properties were characterized by UV–VIS spectroscopy. The extinction spectra exhibit minimum and maximum values centered at 500 nm and 760 nm, respectively. A clear dichroic behavior was demonstrated through the sinusoidal modulation of the absorbance intensity (about 25 % of its absolute value) as a function of the polarization angle. Additionally, the Surface-Enhanced Raman Scattering efficiency of the samples was tested using Rhodamine 6 G dye, exhibiting excellent stability and reaching a sensitivity level of 10 − 7 M. These findings open new exciting potential applications in various fields of scientific research.

Source: Sensors and Actuators A Physical

DOI: 10.1016/j.sna.2024.116135

Authors: J.M. Zárate-Reyes, Y. Kudriavtsev, O. Sánchez-Dena, J.C. Cheang-Wong, R. Asomoza

Institutions: Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional, Universidad Autónoma de Ciudad Juárez, Secretaría de Ciencia, Humanidades, Tecnología e Innovación, Universidad Nacional Autónoma de México

Language: English

Topic: Gold and Silver Nanoparticles Synthesis and Applications

Subfield: Electronic, Optical and Magnetic Materials

Field: Materials Science

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $3,540

Funders: Consejo Nacional de Ciencia y Tecnología, Universidad Nacional Autónoma de México, Dirección General de Asuntos del Personal Académico, Universidad Nacional Autónoma de México