Nanocomposites of CdS quantum dots (QDs) encapsulated in poly(propyleneimine) dendrimer with 1,4-diaminobutane (DAB) core have been synthesized. The QDs are estimated to have an approximately 3-nm diameter and fluoresce in the 380-620 nm spectral range. The fluorescence lifetime has a 165 ps fast component, and a 40 ns slow component.
© 2004 Optical Society of America
(160.4890) Materials : Organic materials
(160.6000) Materials : Semiconductor materials
(300.1030) Spectroscopy : Absorption
(300.6280) Spectroscopy : Spectroscopy, fluorescence and luminescence
C. Gonzalez, V. Balogh-Nair, S. K. Gayen, M. Brito, B. B. Das, X. Liang, G. Comanescu, and R. R. Alfano, "A blue-green emitting organic-inorganic hybrid nanocomposite," in Frontiers in Optics 2004/Laser Science XXII/Diffractive Optics and Micro-Optics/Optical Fabrication and Testing, OSA Technical Digest Series (Optical Society of America, 2004), paper FML3.
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