Fluorescence resonance energy transfer between organic dyes adsorbed onto nano-clay and Langmuir-Blodgett (LB) films

TL;DR

This study explores fluorescence resonance energy transfer (FRET) between organic dyes in Langmuir and Langmuir-Blodgett films, highlighting the role of nano-clay in enhancing energy transfer efficiency.

Contribution

It demonstrates the incorporation of nano-clay into LB films and its effect on FRET efficiency, which is a novel approach in hybrid film design.

Findings

FRET occurs in clay dispersion and LB films with or without clay.

Maximum FRET efficiency observed in LB films with clay.

AFM confirms clay incorporation into hybrid films.

Abstract

In this communication we investigate two dyes N,N' -dioctadecyl thiacyanine perchlorate (NK) and octadecyl rhodamine B chloride (RhB) in Langmuir and Langmuir-Blodgett (LB) films with or with out a synthetic clay laponite. Observed changes in isotherms of RhB in absence and presence of nano-clay platelets indicate the incorporation of clay platelets onto RhB-clay hybrid films. AFM image confirms the incorporation of clay in hybrid films. FRET was observed in clay dispersion and LB films with and without clay. Efficiency of energy transfer was maximum in LB films with clay.