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

SCHMIDT, L.C.; EDELSZTEIN, V.C.; SPAGNUOLO, C.C.; DI CHENNA, P.H.; GALIAN, R.E.

Journal of Materials Chemistry C

Royal Society of Chemistry

Año: 2016 vol. 4 p. 7035 - 7042

2050-7534

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 produces a luminescent, stable and transparent material. Modulation of the luminescence properties was successfully 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 for on-and-off photoswitching applications.