Fraunhofer-Gesellschaft

Publica

Hier finden Sie wissenschaftliche Publikationen aus den Fraunhofer-Instituten.
2021Epitaxial GaInP/GaAs/Si Triple-Junction Solar Cell with 25.9% AM1.5g Efficiency Enabled by Transparent Metamorphic AlxGa1-xAsyP1-y Step-Graded Buffer Structures
Feifel, Markus; Lackner, David; Schön, Jonas; Ohlmann, Jens; Benick, Jan; Siefer, Gerald; Predan, Felix; Hermle, Martin; Dimroth, Frank
Journal Article
2021Nitrogen and carbon incorporation in GaNxAs1-x grown in a showerhead MOVPE reactor
Ruiz, J.E.; Lackner, D.; Souza, P.L.; Dimroth, F.; Ohlmann, J.
Journal Article
2020Advances in Epitaxial GaInP/GaAs/Si Triple Junction Solar Cells
Feifel, M.; Lackner, D.; Ohlmann, J.; Volz, K.; Hannappel, T.; Benick, J.; Hermle, M.; Dimroth, F.
Conference Paper
2020Carrier recombination dynamics in Ga0.51In0.49P double-heterostructures up to 500K
Walker, A.; Shaked, A.; Dagan, R.; Kribus, A.; Rosenwaks, Y.; Ohlmann, J.; Lackner, D.; Dimroth, F.
Journal Article
2020Electron Channeling Contrast Imaging Investigation of Stacking Fault Pyramids in GaP on Si Nucleation Layers
Feifel, M.; Ohlmann, J.; France, R.; Lackner, D.; Dimroth, F.
Journal Article
2019Direct Growth of GaInP/GaAs/Si Triple-Junction Solar Cell with 22.3% AM1.5g efficiency
Feifel, Markus; Lackner, David; Ohlmann, Jens; Benick, Jan; Hermle, Martin; Dimroth, Frank
Journal Article
2019Single- and Dual-variant Atomic Ordering in GaAsP Compositionally Graded Buffers on GaP and Si Substrates
France, R.M.; Feifel, Markus; Belz, J.; Beyer, A.; Volz, K.; Ohlmann, Jens; Lackner, David; Dimroth, Frank
Journal Article
2018Direct growth of III–V/silicon triple-junction solar cells with 19.7% efficiency
Feifel, Markus; Ohlmann, Jens; Benick, Jan; Hermle, Martin; Belz, Jürgen; Beyer, Andreas; Volz, Kerstin; Hannappel, Thomas; Bett, Andreas W.; Lackner, David; Dimroth, Frank
Journal Article
2018Hall characterization of epitaxial GaSb and AlGaAsSb layers using p-n junctions on GaSb substrates
Predan, F.; Ohlmann, J.; Mrabet, S.; Dimroth, F.; Lackner, D.
Journal Article
2018Monolithic Photoelectrochemical Device for Direct Water Splitting with 19% Efficiency
Cheng, Wen-Hui; Richter, Matthias H.; May, Matthias M.; Ohlmann, Jens; Lackner, David; Dimroth, Frank; Hannappel, Thomas; Atwater, Harry A.; Lewerenz, Hans-Joachim
Journal Article
2017Effects of thermal annealing on structural and electrical properties of surface-activated n-GaSb/n-GaInP direct wafer bonds
Predan, F.; Kovacs, A.; Ohlmann, J.; Lackner, D.; Dunin-Borkowsi, R.E.; Dimroth, F.; Jäger, W.
Journal Article
2017Highly efficient solar hydrogen generation
Fallisch, A.; Förster, P.; Zedda, M.; Ohlmann, J.
Conference Paper
2017Hydrogen concentrator demonstrator module with 19,8% solar-to-hydrogen conversion efficiency according to the higher heating value
Fallisch, A.; Schellhase, L.; Fresko, J.; Zedda, M.; Ohlmann, J.; Steiner, M.; Bösch, A.; Zielke, L.; Thiele, S.; Dimroth, F.; Smolinka, T.
Journal Article
2017Investigation on PEM water electrolysis cell design and components for a HyCon solar hydrogen generator
Fallisch, A.; Schellhase, L.; Fresko, J.; Zechmeister, M.; Zedda, M.; Ohlmann, J.; Zielke, L.; Paust, N.; Smolinka, T.
Journal Article
2017Minority carrier diffusion length, lifetime and mobility in p-type GaAs and GaInAs
Niemeyer, Markus; Ohlmann, Jens; Walker, Alexandre; Kleinschmidt, Peter; Lang, Robin; Hannappel, Thomas; Dimroth, Frank; Lackner, David
Journal Article
2017MOVPE Grown Gallium Phosphide-Silicon Heterojunction Solar Cells
Feifel, M.; Ohlmann, J.; Benick, J.; Rachow, T.; Janz, S.; Hermle, M.; Dimroth, F.; Belz, J.; Beyer, A.; Volz, K.; Lackner, D.
Journal Article
2017On the benchmarking of multi-junction photoelectrochemical fuel generating devices
May, M.M.; Lackner, D.; Ohlmann, J.; Dimroth, F.; Krol, R. van de; Hannappel, T.; Schwarzburg, K.
Journal Article
2017Research on multi-junction solar cells at Fraunhofer ISE
Bett, A.W.; Beutel, P.; Cariou, R.; Feifel, M.; Heckelmann, S.; Hoehn, O.; Klinger, V.; Lackner, D.; Niemeyer, M.; Ohlmann, J.; Oliva, E.; Predan, F.; Siefer, G.; Dimroth, F.
Presentation
2016Gallium phosphide window layer for silicon solar cells
Feifel, M.; Rachow, T.; Benick, J.; Ohlmann, J.; Janz, S.; Hermle, M.; Dimroth, F.; Lackner, D.
Journal Article
2016Highly efficient solar hydrogen generation - an integrated concept with III-V solar cells and PEM electrolysis cells
Fallisch, A.; Förster, P.; Ohlmann, J.; Smolinka, T.; Zedda, M.
Presentation
2016Influence of metal-organic vapor phase epitaxy reactor environment on the silicon bulk lifetime
Ohlmann, J.; Feifel, M.; Rachow, T.; Benick, J.; Janz, S.; Dimroth, F.; Lackner, D.
Journal Article
2016Minority carrier lifetime limitations in Si wafer solar cells with gallium phosphide window layers
Janz, S.; Feifel, M.; Ohlmann, J.; Benick, J.; Weiss, C.; Hermle, M.; Bett, A.W.; Dimroth, F.; Lackner, D.
Conference Paper
2016Minority carrier recombination of ordered Ga0.51In0.49P at high temperatures
Dagan, R.; Rosenwaks, Y.; Kribus, A.; Walker, A.; Ohlmann, J.; Dimroth, F.
Journal Article
2016Recent Development in Direct Generation of Hydrogen Using Multi-Junction Solar Cells
Ohlmann, J.; Martínez, Juan F.; Lackner, D.; Förster, P.; Steiner, M.; Fallisch, A.; Dimroth, F.
Conference Paper
2014Highly efficient solar hydrogen generation - an integrated concept joining III-V solar cells with PEM electrolysis cells
Rau, S.; Vierrath, S.; Ohlmann, J.; Fallisch, A.; Lackner, D.; Dimroth, F.; Smolinka, T.
Journal Article
2010MOVPE growth of III-V solar cells on silicon in 300 mm closed coupled showerhead reactor
Roesener, T.; Döscher, H.; Beyer, A.; Brückner, S.; Klinger, V.; Wekkeli, A.; Kleinschmidt, P.; Jurecka, C.; Ohlmann, J.; Volz, K.; Stolz, W.; Hannappel, T.; Bett, A.W.; Dimroth, F.
Conference Paper