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Characters of quantum dot (QD). (A) Excitation (solid line) and emission spectra (dotted line) of CdSe quantum dots. (B) Size tuneability and emission color of five different QDs with the same long-wavelength UV lamp. (C) Structure of a QD nanocrystal: transmission electron microscope image of core shell QD at 200,000x magnification (left) and schematic of the overall structure (right). Figures were obtained from Invitrogen website (www.invitrogen.com).
