Search Results - "Blumer, Zak H"

Reduced Dislocation Introduction in III–V/Si Heterostructures with Glide-Enhancing Compressively Strained Superlattices by Boyer, Jacob T, Blumer, Ari N, Blumer, Zak H, Lepkowski, Daniel L, Grassman, Tyler J

“…The novel use of a GaAs y P1–y /GaP compressively strained superlattice (CSS) to provide enhanced control over misfit dislocation (MD) evolution and threading…”
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Si-matched BxGa1−xP grown via hybrid solid- and gas-source molecular beam epitaxy by Blumer, Zak H., Boyer, Jacob T., Blumer, Ari N., Lepkowski, Daniel L., Grassman, Tyler J.

“…The growth of BxGa1−xP alloys by hybrid solid/gas-source molecular beam epitaxy, with B supplied via the BCl3 gas precursor, is demonstrated. Compositional…”
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Exploring Multiple Pathways to Low TDD GaP/Si for III-V/Si Photovoltaics by Boyer, Jacob T., Blumer, Zak H., Lepkowski, Daniel L., Ringel, Steven A., Grassman, Tyler J.

“…Threading dislocation density (TDD) is a key parameter that commonly limits the performance of epitaxially integrated III-V/Si photovoltaics. The GaP/Si…”
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Recent Advances in GaAsP/Si Top Cell Enabling 27% Tandem Efficiency by Lepkowski, Daniel L., Kasher, Tal, Boyer, Jacob T., Blumer, Zak H., Yi, Chuqi, Juhl, Mattias K., Soeriyadi, Anastasia H., Mehrvarz, Hamid, Romer, Udo, Ho-Baillie, Anita, Bremner, Stephen P., Ringel, Steven A., Grassman, Tyler J.

“…Historically, the performance of monolithically-integrated GaAsP/Si tandem solar cells has been limited by the presence of elevated TDD in the GaAsP subcell…”
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Si-matched B x Ga1− x P grown via hybrid solid- and gas-source molecular beam epitaxy by Blumer, Zak H., Boyer, Jacob T., Blumer, Ari N., Lepkowski, Daniel L., Grassman, Tyler J.

“…The growth of BxGa1−xP alloys by hybrid solid/gas-source molecular beam epitaxy, with B supplied via the BCl3 gas precursor, is demonstrated. Compositional…”
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Development of Low-TDD GaAsyP1-y/GaP/Si Metamorphic Materials for High-Efficiency III-V/Si Photovoltaics by Boyer, Jacob T., Blumer, Ari N., Blumer, Zak H., Rodriguez, Francisco A., Lepkowski, Daniel L., Ringel, Steven A., Grassman, Tyler J.

“…Metamorphic III-V/Si materials with low threading dislocation density (TDD) are critical to realizing high-efficiency III-V/Si multijunction photovoltaics. In…”
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Loss Analysis and Design Strategies Enabling >23% GaAsP/Si Tandem Solar Cells by Lepkowski, Daniel L., Boyer, Jacob T., Yi, Chuqi, Soeriyadi, Anastasia H., Blumer, Zak H., Juhl, Mattias K., Derkacs, Daniel, Kerestes, Chris, Stavrides, Alex, Mehrvarz, Hamid, Ho-Baillie, Anita W.Y., Bremner, Stephen, Ringel, Steven A., Grassman, Tyler J.

“…Detailed loss analysis of our previously reported 21.8% (unverified) monolithic GaAsP/Si tandem cells has identified and quantified three main mechanisms…”
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