Abstract
The thermal annealing effects on the optical and material properties of an InGaN thin film were analyzed. On thermal annealing the photoluminescence spectrum was shifted from the original yellow band into the blue range. Cluster size reduction and quantum-confined Stark effect relaxation attributed to the spectral change. The results show a stronger quantum confinement and an increase in the effective band gap of the quantum dot due to the shrinkage of cluster size.
Original language | English |
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Pages (from-to) | 3906-3908 |
Number of pages | 3 |
Journal | Applied Physics Letters |
Volume | 83 |
Issue number | 19 |
DOIs | |
State | Published - Nov 10 2003 |