Abstract
The photoluminescence emission peak energy of GaN quantum dots was observed to shift to higher energy with decreasing quantum dot size. This effect was found to be a combination of a blueshift from the confinement-induced shift of the electronic levels and a redshift from the increased Coulomb energy induced by a compression of the exciton Bohr radius. From this observation, absolute values of the exciton binding energy as a function of quantum dot size are determined.
Original language | English |
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Pages (from-to) | 1104-1106 |
Number of pages | 3 |
Journal | Applied Physics Letters |
Volume | 73 |
Issue number | 8 |
DOIs | |
Publication status | Published - 1998 |
Externally published | Yes |
All Science Journal Classification (ASJC) codes
- Physics and Astronomy (miscellaneous)