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.
Optical Modulation of Amplified Emission in a Polyfluorene–Diarylethene Blend / PERISSINOTTO, STEFANO; GARBUGLI, MICHELE; FAZZI, DANIELE; BERTARELLI, CHIARA; M. Carvelli; A. R. Srimath Kandada; Z. Yue; K. S. Wong; LANZANI, GUGLIELMO. - In: CHEMPHYSCHEM. - ISSN 1439-7641. - ELETTRONICO. - 12:18(2011), pp. 3619-3623. [10.1002/cphc.201100480]
Optical Modulation of Amplified Emission in a Polyfluorene–Diarylethene Blend
FAZZI, DANIELE;
2011
Abstract
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.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
