Microcavity effects in a spin-coated polymer two-layer system

Abstract

We report on the design and the optical properties of a spin-coated multilayer organic microcavity. Tri(stilbene)amine blended with polysulfone as the first layer and an oxadiazole derivative (BPBD) blended with polystyrene as the second layer are sandwiched between two planar mirrors. Enhancement of the luminescence and spectrally narrow emission are observed. By means of time resolved luminescence spectroscopy we show that the spontaneous emission rate is increased in the cavity.

Pressure effect on photoluminescence and Raman spectra of PPV

“…The conjugated polymers, especially poly (paraphenylenevinylene) (PPV) and its derivatives, have attracted tremendous interest due to their potential applications in electronic and optical-electronic devices [1], such as the photo-active layer in light emitting diodes [2][3][4], lasers [5,6], and photovoltaic cell [7]. The synthetic routes via a soluble precursor polymer and groups containing either dimethyl sulfonium [8] or tetrahydrothiophenium [9] are beneficial for the process ability of the PPV film.…”

Transient Electroluminescence from Poly(phenylenevinylene)-Based Devices

“…There has already been impressive progress in the study of optically pumped lasing from conjugated polymers. This began in 1995 [96,97] with a demonstration of a significant photoluminescence (PL) spectral narrowing, and PL enhancement in the forward emission in polymer microcavities.…”

Charge-induced dephasing in thin polythiophene films

“…1 The discovery of electroluminescence in conjugated polymers 2 has opened up a new field in which considerable attention has been given to the photophysical and electro-optical properties of these materials due to their potential application in light emitting devices. 3,4 An important recent development was the observation of stimulated emission from a variety of poly͑p-phenylenevinylene͒ ͑PPV͒ and its derivatives. [5][6][7] Despite the amount of work in this area, there remain fundamental questions about the nature and the kinetics of the electronic excitations in these materials.…”