Work

p-Type Organic Semiconductor–Metal Nanoparticle Hybrid Film for the Enhancement of Raman and Fluorescence Detection

Year: 2025

Type: article

Abstract: Hybrid platforms of organic semiconductors and plasmonic metal nanostructures have the potential to form effective optical detection substrates. Here, we report the use of an organic p-type conducting polymer poly(3-hexylthiophene-2,5-diyl) combined with plasmon-active silver nanostructures to enhance both Raman and fluorescence signal intensities. This enhancement occurs when optically excited charge from the polymer is transferred to silver, causing an enhancement of the electromagnetic field and leading to an increase in both the Raman and fluorescence signal intensities. This study demonstrates the potential of the organic semiconducting polymer-plasmonic metal nanostructure platform in spectroscopy detection technology.

Source: The Journal of Physical Chemistry C

DOI: 10.1021/acs.jpcc.4c08030

Authors: Rongcheng Gan, Dominik Duleba, Robert P. Johnson, James H. Rice

Institution: University College Dublin

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: $4,500

Funders: Science Foundation Ireland, Irish Research Council