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.
Institute of Semiconductor and Solid State Physics, Johannes Kepler University, Altenbergerstrasse 69, 4040 Linz, Austria. ventsi_phys@yahoo.com
Ventsislav
V
Lavchiev
Ahmad
A
Saeed
Chunguang
C
Hu
Viktor
V
Dubec
Dionyz
D
Pogany
Wolfgang
W
Hilber
Wolfgang
W
Jantsch