Demonstrating Dilute-Tin Alloy SiGeSn for Use in Multijunction Photovoltaics: Single- and Multijunction Solar Cells With a 1.0-eV SiGeSn Junction - Roucka, R; Clark, A; Wilson, T; Thomas, T; Fuhrer, M; Ekins-Daukes, N; Johnson, A; Hoffman, R; Begarney, D (IEEE Journal of Photovoltaics, 2016)