Abstract
Recently, It has been demonstrated that the shape of CdSe nanocrystals can be manipulated by controlling the growth kinetics.1 The resulting nanostructures can be from a nearly spherical morphology to a rod-like one. The quantum confined nano-rods (quantum rods) can grow up to 200 nm long with an aspect ratio of up to 50. The successful growth of these rod- and wire-like structures provides a testing ground for studying the shape-dependent electronic and optical properties of nanocrystals and the quantum confinement effects in one-dimensional (1D) and quasi- 1D regime, and in comparison with much characterized zero-dimensional (0D) quantum- dot system. Consequently, studies of quantumrod system will explore another dimension for device applications of colloidal nanocrystals.
© 2001 Optical Society of America
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