Optical modulation of amplified emission in a polyfluorene-diarylethene blend.
A novel system for the modulation of amplified emission based on a polyfluorene/diarylethene (namely F8BT/DTP) blend is shown. The high sensitivity of amplified spontaneous emission (ASE) is exploited to achieve efficient emission modulation with a low-intensity control signal. Modulation is then characterized by photoluminescence (PL) lifetime measurements, photocurrent experiments, and density functional theory calculations. This system can also act as a photocurrent switch based on the same principle. This technique may represent a useful tool for fluorescence quenching and sensing as well as find application in organic photonics.
Center for Nano Science and Technology@PoliMi, Istituto Italiano di Tecnologia, Via Pascoli 70/3, 20133 Milan, Italy. stefano.perissinotto@iit.it
Stefano
S
Perissinotto
Michele
M
Garbugli
Daniele
D
Fazzi
Chiara
C
Bertarelli
Marco
M
Carvelli
Ajay R Srimath
AR
Kandada
Zhounan
Z
Yue
Kam S
KS
Wong
Guglielmo
G
Lanzani