Patent ID: 9305122
Filing Date: 2016-04-05
CPC Classification: G06F,H01L,H01S

Claim Text:
1. A method for building the superlattice layering configuration that maximizes the chosen optoelectronic device performance characteristic includes the steps of: (1) receiving, at a computer, data of a first baseline semiconductor superlattice, whose layering configuration is defined by the number of layers (total, or in each period), thickness of each layer, and constituent material forming each layer as described in above; (2) receiving, at the computer, data of the band parameters for all the constituent materials that form each layer of the semiconductor superlattice, as described above; (3) using the computer, identifying a fundamental physical property of the semiconductor superlattice that is determined by a three-dimensional integral over k-space having the form: where: (4) using the computer, replacing the three-dimensional integral by finite sums over discrete intervals Δk where i=1, (5) using the computer, replacing all the φ where i=1; (6) using the computer, evaluating E (7) using the computer, evaluating M(k (8) using the computer, evaluating a chosen optoelectronic device performance characteristic F that depends on the first fundamental physical property A (9) using the computer, modifying one or more parameters in the layering configuration of the baseline superlattice structure to obtain a modified superlattice structure; (10) repeating steps (2)-(8) to evaluate the optoelectronic performance characteristic F for the modified superlattice; (11) if the value of F obtained for the modified superlattice is superior to that for the baseline superlattice, substituting the modified superlattice layering configuration as the new baseline; and (12) repeating steps (10) and (11) until convergence to an optimal value of the performance characteristic F is reached; wherein a baseline superlattice employed to obtain that value of F represents the superlattice layering configuration that best optimizes the performance characteristic F.