Quantum dots for detection of trace amount of nonvolatile explosives: the effect of TNT in the fluorescence of CdSe quantum dots

Nieto, Sorelis; Santana, Alberto; P. Hernández‐Rivera, Samuel; T. Lareau, R.; Thomas Chamberlain, R.; E. Castro-Rosario, Miguel

doi:10.1117/12.542797

Public

Quantum dots for detection of trace amount of nonvolatile explosives: the effect of TNT in the fluorescence of CdSe quantum dots

Published in Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE • Sep 15, 2004

Authors:

Sorelis Nieto

Alberto Santana

Samuel P. Hernández‐Rivera

Abstract

We report on the effect of trinitrotoluene (TNT) in the fluroescence emission of CdSe quantum dots covered with a ZnS core shell. Pulses of 100 femtoseconds are employed to excite the fluorescence of the dots off resonance. We found evidence for a strong quenching by TNT on the fluorescence emission...

Subject

Quantum dot

Fluorescence

Trinitrotoluene

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