Light-responsive hybrid material based on luminescent core?shell quantum dots and steroidal organogel

LUCIANA SCHMIDT; VALERIA C. EDELSZTEIN; CARLA C. SPAGNUOLO; PABLO DI CHENNA; RAQUEL GALIÁN

Journal of Materials chemistry C

Royal Society of Chemistry

Lugar: Cambridge; Año: 2016 vol. 4 p. 7035 - 7042

We report the synthesis of a smart novel hybrid with reversible photoswitchable luminescence properties modulated by light. The combination of a low molecular weight organogelator (LMOG) and CdSe/ZnS core?shell semiconductor nanoparticles capped with trioctylphosphine oxide ligands pro-duces a luminescent, stable and transparent material. Modulation of the luminescence properties wassuccessfully achieved using a diarylethene photochromic compound, with good resistance to fatigue ca.22 cycles. Interestingly, the morphology of the organogel fibers was preserved in the hybrid, while a partial luminescence quenching of the nanoparticle was observed. This material could have implication foron-and-off photoswitching applications.