Search Results - "Olson, J.M."

1-eV solar cells with GaInNAs active layer by Friedman, D.J., Geisz, J.F., Kurtz, S.R., Olson, J.M.

“…We demonstrate working prototypes of a GaInNAs-based solar cell lattice-matched to GaAs with photoresponse down to 1 eV. This device is intended for use as the…”
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Photocurrent of 1 eV GaInNAs lattice-matched to GaAs by Geisz, J.F., Friedman, D.J., Olson, J.M., Kurtz, S.R., Keyes, B.M.

“…The spectral photocurrent response, or quantum efficiency, of GaInNAs lattice-matched to GaAs with a bandgap of 1 eV has been measured in an electrochemical…”
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Concurrent Chemotherapy and Reduced-Dose Cranial Spinal Irradiation followed by Posterior Fossa Tumor Bed Boost for Average-Risk Medulloblastoma: Efficacy and Patterns of Failure by Ermoian, R.P, Barker, J.L, Browd, S.R, Ojemann, J.G, Olson, J.M, Geyer, J.R, Ellenbogen, R.G, Douglas, J.G

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Lattice-mismatched GaAsP Solar Cells Grown on Silicon by OMVPE by Geisz, J.F., Olson, J.M., Romero, M.J., Jiang, C.S., Norman, A.G.

“…We report on lattice-mismatched GaAs 0.7 P 0.3 solar cells grown on silicon substrates. This composition of GaAs 0.7 P 0.3 has a band gap of about 1.7 eV and…”
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An RDS, LEED, and STM Study of MOCVD-Prepared Si(1 0 0) surfaces by Hannappel, T., McMahon, W.E., Olson, J.M.

“…Clean, As- and P-terminated Si(1 0 0) surfaces were prepared with H 2 carrier gas and AsH 3 and PH 3 as precursors in an MOCVD chamber. Reflectance difference…”
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Phase Transitions on Fixed Connected Graphs and Random Graphs in the Presence of Noise by Jialing Liu, Yadav, V., Sehgal, H., Olson, J.M., Haifeng Liu, Elia, N.

“…In this paper, we study the phase transition behavior emerging from the interactions among multiple agents in the presence of noise. We propose a simple…”
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Projected performance of three- and four-junction devices using GaAs and GaInP by Kurtz, S.R., Myers, D., Olson, J.M.

“…This paper explores the efficiencies expected for three- and four-junction devices for both space and terrestrial applications. For space applications, the…”
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An STM and LEED study of MOCVD-prepared P/Ge (1 0 0) to (1 1 1) surfaces by McMahon, W.E., Kibbler, A.E., Olson, J.M.

“…Certain device applications such as high-efficiency multijunction III–V solar cells require high-quality GaAs deposition on Ge substrates. Commercially, this…”
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Lattice-matched GaNPAs-on-silicon tandem solar cells by Geisz, J.F., Olson, J.M., Friedman, D.J., Jones, K.M., Reedy, R.C., Romero, M.J.

“…A two-junction device consisting of a 1.7-eV GaNPAs junction on a 1.1 -eV silicon junction has the theoretical potential to achieve nearly optimal efficiency…”
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Evaluation of NF3 versus dimethylhydrazine as n sources for GaAsN by KURTZ, Sarah, REEDY, R, KEYES, B, BARBER, Greg D, GEISZ, J. F, FRIEDMAN, D. J, MCMAHON, W. E, OLSON, J. M

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Incorporation effects in MOCVD-grown (In)GaAsN using different nitrogen precursors by Ptak, A.J, Kurtz, Sarah, Curtis, C, Reedy, R, Olson, J.M

“…The incorporation of In into InGaAsN grown by MOCVD is known to reduce the incorporation of nitrogen. In addition, the most commonly used nitrogen precursors…”
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In Quest of Audubon: Exploring Audubon's Monument in Trinity Cemetery and Mausoleum to Rediscover Its History by Olson, Roberta J.M., Spady, Matthew

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MRI Features of Histologically Diagnosed Supratentorial Primitive Neuroectodermal Tumors and Pineoblastomas in Correlation with Molecular Diagnoses and Outcomes: A Report from the Children's Oncology Group ACNS0332 Trial by Jaju, A, Hwang, E I, Kool, M, Capper, D, Chavez, L, Brabetz, S, Billups, C, Li, Y, Fouladi, M, Packer, R J, Pfister, S M, Olson, J M, Heier, L A

“…Supratentorial primitive neuroectodermal tumors and pineoblastomas have traditionally been grouped together for treatment purposes. Molecular profiling of…”
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Photocurrent of 1eV GaInNAs lattice-matched to GaAs by Geisz, J.F., Friedman, D.J., Olson, J.M., Kurtz, S.R., Keyes, B.M.

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Effect of Nitrogen-Induced Modification of the Conduction Band Structure on Electron Transport in GaAsN Alloys by Skierbiszewski, C., Perlin, P., Wisniewski, P., Suski, T., Walukiewicz, W., Shan, W., Ager, J.W., Haller, E.E., Geisz, J.F., Friedman, D.J., Olson, J.M., Kurtz, S.R.

“…We report pressure studies of conductivity, photoconductivity and Hall effect in Si doped GaAs0.986N0.014. We observed that pressure causes an unusually large…”
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Band Anticrossing in GaInNAs Alloys by Shan, W., Walukiewicz, W., Ager, J. W., Haller, E. E., Geisz, J. F., Friedman, D. J., Olson, J. M., Kurtz, S. R.

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Chlorophyll organization and function in green photosynthetic bacteria by Olson, J.M

“…The green photosynthetic bacteria are characterized by the presence of chlorosomes appressed to the cytoplasmic side of the cytoplasmic membrane. The…”
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Modeling of electron diffusion length in GaInAsN solar cells by Kurtz, S., Geisz, J.F., Friedman, D.J., Olson, J.M., Duda, A., Karam, N.H., King, R.R., Ermer, J.H., Joslin, D.E.

“…This paper seeks to quantify the electron diffusion length in p-type GaInAsN and to understand the performance of GaInAsN cells. The usual modeling is…”
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Cross-species epigenetics identifies a critical role for VAV1 in SHH subgroup medulloblastoma maintenance by Lindsey, J C, Kawauchi, D, Schwalbe, E C, Solecki, D J, Selby, M P, McKinnon, P J, Olson, J M, Hayden, J T, Grundy, R G, Ellison, D W, Williamson, D, Bailey, S, Roussel, M F, Clifford, S C

“…The identification of key tumorigenic events in Sonic Hedgehog (SHH) subgroup medulloblastomas (MB SHH ) will be essential for the development of…”
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Thinking about the evolution of photosynthesis by Olson, J.M, Blankenship, R.E

“…Photosynthesis is an ancient process on Earth. Chemical evidence and recent fossil finds indicate that cyanobacteria existed 2.5-2.6 billion years (Ga) ago,…”
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