78 citations · 163 across the 8 of their papers we have counts for
10 papers
Domain Decomposition for Heterojunction Problems in Semiconductors
Timothy Costa, David Foster, Malgorzata Peszynska
We present a domain decomposition approach for the simulation of charge transport in heterojunction semiconductors. The problem is characterized by a large variation of primary var…
Band alignment and directional stability in abrupt and polar-compensated Si/ZnS interface calculations
David H. Foster, Guenter Schneider
We perform a first principles investigation of Si/ZnS interface properties for the [111], [100], and [110] directions, including single-substitution polar-compensated interfaces. T…
Multiscale modeling of solar cells with interface phenomena
David H. Foster, Timothy Costa, Malgorzata Peszynska +1
We describe a mathematical model for heterojunctions in semiconductors which can be used, e.g., for modeling higher efficiency solar cells. The continuum model involves well-known…
Electronic and optical properties of potential solar absorber Cu3PSe4
D. H. Foster, V. Jieratum, R. Kykyneshi +2
We theoretically investigate the electronic and optical properties of semiconductor Cu3PSe4. We also report diffuse reflectance spectroscopy measurements for Cu3PSe4 and Cu3PS4, wh…
Defect physics and electronic properties of Cu3PSe4 from first principles
D. H. Foster, F. L. Barras, J. M. Vielma +1
The p-type semiconductor Cu3PSe4 has recently been established to have a direct bandgap of 1.4 eV and an optical absorption spectrum similar to GaAs [Applied Physics Letters, 99, 1…
Degenerate Perturbation Theory Describing the Mixing of Orbital Angular Momentum Modes in Fabry-Pérot Cavity Resonators
David H. Foster, Andrew K. Cook, Jens U. Nöckel
We present an analytic perturbation theory which extends the paraxial approximation for a common cylindrically symmetric stable optical resonator and incorporates the differential,…