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. 2016 Feb 15;6(2):32. doi: 10.3390/nano6020032

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© 2016 by the authors; licensee MDPI, Basel, Switzerland.

This article is an open access article distributed under the terms and conditions of the Creative Commons by Attribution (CC-BY) license (http://creativecommons.org/licenses/by/4.0/).

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(a) PL spectra of colloidal Ga₂O₃-CdSe/CdS NC conjugates (solid lines) having different CdSe/CdS to Ga₂O₃ NC concentration ratio, as indicated in the graph. PL spectra of thioglycolic acid (TGA)-bound CdSe/CdS NC suspensions having the same concentration as in the NC conjugate are shown with dashed lines (λ_exc = 250 nm); (b) PL spectra of the mixtures of Ga₂O₃ and CdSe/CdS NCs prepared in the same way as the NC conjugate but without the TGA linker; (c) Quenching efficiency of the donor-acceptor pair (DAP) emission of Ga₂O₃ NCs in the conjugate (squares), mixed with CdSe/CdS NCs (circles), and mixed with TGA but without CdSe/CdS NCs (triangles).