Hybrid nanoimprinted laser based on conjugated conductive polymer and nanocrystal quantum dots.
A composite of the conjugate conductive polymer poly(2-methoxy-5-(2-ethylhexyloxy)-1,4-phenylenevinylene) (MEH-PPV) and CdSe/ZnS quantum dots (QDs) is utilized for nanoimprinted lasers after drop-casting onto one-dimensional omnidirectional Bragg mirrors. Strong amplified spontaneous emission is observed at the resonances of both the QDs and the polymer. Clearly resolved, low-threshold lasing was found after nanoimprinting of distributed-feedback gratings on the composite surface. Energy transfer between the polymer molecules and the QDs is demonstrated by excitation spectroscopy.
Lavchiev
Ventsislav
V
Institute of Semiconductor and Solid State Physics, Johannes Kepler University, Altenbergerstrasse 69, 4040 Linz, Austria. ventsi_phys@yahoo.com
Saeed
Ahmad
A
Hu
Chunguang
C
Dubec
Viktor
V
Pogany
Dionyz
D
Hilber
Wolfgang
W
Jantsch
Wolfgang
W