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InSb Multiple Quantum Wells

The table below is a compilation of the statistics and results from X-Ray and FTIR analysis of the four 250 Å quantum well samples.

S477 S476 S498 S595
Hillock Density cm-2 1.2 x 107 6.9 x 106 7.4 x 106 9.3 x 106
Ave. Height (nm) 10 18 18 17
Aspect Ratio ([1 -1 0]/[1 1 0]) 1.3 1.5 1.1 2.0
Q[1 -1 0]Q[1 1 0] 0.73 0.51 0.88 0.58
(OAS)[1 -1 0] (#/cm2) 2.5 x 107 8.9 x 106 1.1 x 107 1.8 x 107
(OAS)[1 -1 0] Length (mm) 1.3 3.5 3.1 2.5
(OAS)[1 1 0] (#/cm2) 8 x 106 1 x 106 5 x 106 2 x 106
(OAS)[1 1 0] Length (mm) 1 1 1.8 1.9
Exciton FWHM (meV) 5.9 4.2 3.4 2.6


The angles Q[1 -1 0] and Q[1 1 0] define the average hillock attack angle from the base to the plateau of the hillocks.


MQW Structure

Experimental Results
AFM Results
AFM

X-Ray Diffraction

FTIR


Results Table
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