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PbSe/CdSe Core-Shell Colloidal Quantum Dots with Enhanced Optical Nonlinearities and Dual-Band Infrared/Visible Emission

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Abstract

We report more than ten-fold enhancement of two-photon absorption cross sections in PbSe/CdSe core-shell colloidal quantum dots due to resonant core-mediated transitions and Auger-assisted upconversion.

© 2013 Optical Society of America

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