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The energy level spacing between the ground and first excited states in InAs/GaAs quantum dots as a measure of the zero dimensionality

✍ Scribed by U.H. Lee; Y.D. Jang; H. Lee; D. Lee; J.S. Kim; J.Y. Leem; S.K. Noh

Publisher: Elsevier Science
Year: 2003
Tongue: English
Weight: 108 KB
Volume: 17
Category: Article
ISSN: 1386-9477
DOI: 10.1016/s1386-9477(02)00746-4

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✦ Synopsis

We suggest a ÿgure of merit for the zero dimensionality, which is the most important property in quantum dots (QD). QD samples emitting at longer wavelengths are turned out to have the larger energy level spacings between the ground and ÿrst excited states. The QDs have the stronger quantum e ect likely due to the taller height and are closer to an ideal zero-dimensional system.

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