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CdTe Quantum Dot Fluorescence Modulation by Spin Crossover

Laboratoire de Chimie de Coordination, CNRS 205 Route de Narbonne, Toulouse 31077, France
Department of Chemistry, National Taras Shevchenko University, 62a Volodymyrska street, Kyiv 01601, Ukraine
Authors to whom correspondence should be addressed.
These authors contributed equally to this work.
Academic Editors: Guillem Aromí and José Antonio Real
Magnetochemistry 2016, 2(1), 11;
Received: 10 November 2015 / Revised: 27 January 2016 / Accepted: 4 February 2016 / Published: 25 February 2016
(This article belongs to the Special Issue Spin Crossover (SCO) Research)
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Nanocomposite materials containing Cadmium Telluride (CdTe) nanocrystals and [Fe(H-trz)2(trz)]BF4 nanoparticles were synthesized and investigated for the coupling between their photoluminescent and spin crossover properties. The bright CdTe emission around 550 nm was found to decrease reversibly when switching the ferrous complex from the high spin (HS) to the low spin (LS) state, which was attributed to the spectral overlap of the luminescence with the absorption of the complex in the latter electronic configuration. A significant irreversible change of the luminescence signal (photobleaching) was also observed both in emission intensity and lifetime measurements. View Full-Text
Keywords: nanocomposite; quantum dots; luminescence; spin crossover nanocomposite; quantum dots; luminescence; spin crossover

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Kraieva, O.; Suleimanov, I.; Molnár, G.; Salmon, L.; Bousseksou, A. CdTe Quantum Dot Fluorescence Modulation by Spin Crossover. Magnetochemistry 2016, 2, 11.

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