Skip to main content

Table 1 Summary of different PL peak energies and their origins for both unpatterned and patterned samples

From: Improved infrared photoluminescence characteristics from circularly ordered self-assembled Ge islands

Sample Island type Diameter (nm) Height (nm) Peak energy (meV) Origin
Unpatterned Smaller 65 ± 7 7 ± 1 761 No phonon
  Larger 95 ± 8 18 ± 2 702 No phonon
     665 TO phonon
Patterned (500 nm pitch) Smaller 40-70 4-10 710-850 No phonon
  Ordered 75 ± 5 17 ± 1 691 No phonon
     655 TO phonon