We discuss the formation of self-assembling II-VI quantum dots during MBE growth, with emphasis on CdSe dots grown on ZnSe. AFM measurements on specimens with uncapped dots show relatively narrow dot size distributions, with typical dot diameters of 35 ∓ 5 nm. Uncapped CdSe dots are unstable with time, showing clear evidence of ripening. Photoluminescence from capped dots indicates strong exciton localization, as evidenced by very intense PL emission even at relatively high temperatures.
|Number of pages||9|
|Journal||Journal of Crystal Growth|
|Publication status||Published - 1998 Dec 1|
- II-VI semiconductors
- Quantum dots
ASJC Scopus subject areas
- Condensed Matter Physics