Enhancement of ultrathin film emission using a waveguiding active layer - Archive ouverte HAL Access content directly
Journal Articles Journal of Applied Physics Year : 2010

Enhancement of ultrathin film emission using a waveguiding active layer

(1) , (1) , (1) , (1) , (1)
1

Abstract

We present a theoretical study on the impact of a waveguiding active layer on the emission properties of an ultrathin luminescent film. While the study can be generalized to any material, we focus here on a simple layered medium composed of a conjugated polymers (CPs) thin film, a zinc oxide layer (ZnO) and a sapphire substrate. The study spreads throughout variable aspects including the effect of the structure parameters on the CP luminescence and radiation pattern and more specifically the influence of the absorption and emission properties of the active layer. Comparing between the passive and active layer cases, the obtained results show that an enhancement of the CP luminescence of more than 20 times can be obtained by using an optically active waveguiding underlying layer. The results can be explained in terms of photon recycling where the optically active layer acts as a photon reservoir and a secondary light source for the ultrathin film. This general concept is of a special interest for ultratrace chemosensor.

Dates and versions

hal-02269661 , version 1 (23-08-2019)

Identifiers

Cite

Roy Aad, Sylvain Blaize, Aurélien Bruyant, Christophe Couteau, Gilles Lerondel. Enhancement of ultrathin film emission using a waveguiding active layer. Journal of Applied Physics, 2010, 108 (12), pp.123111. ⟨10.1063/1.3524537⟩. ⟨hal-02269661⟩

Collections

CNRS UTT UTT-L2N
17 View
0 Download

Altmetric

Share

Gmail Facebook Twitter LinkedIn More