Glossary

Bandgap The energy gap between valence band and conduction band in semiconductor materials. de Broglie wavelength The wave-like properties of matter can be related to its particle-like properties through A = h/p, where h is Planck's constant, A is called de Broglie wavelength, and p is the momentum.

Dome A solid shape that resembles a hemispherical structure.

Heteroepitaxial growth The growth of near perfect crystal layer/layers on a single crystal substrate in such a way that the crystalline structure of the substrate is preserved in the grown layer/layers. The material/materials grown on top of the substrate and the substrate itself are different materials. Hut A solid shape with a rectangular base, two similar trapezoidal sides on the long edges of the base, and two similar triangular sides on the short edges of the base. The four sides slope to meet in a line at the top. Ostwald ripening Large precipitates (islands, in our case) grow larger by consuming small precipitates. As a result of the ripening, the average precipitate size is increased at the expense of precipitate density.

Pyramid A solid shape with a square base and four triangular sides that slope to meet in a point. Stranski-Krastanow (S-K) growth mode A heteroepitax-ial growth mode in which layer-by-layer growth is followed by island growth.

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