Search Results - "Chojniak, David"

Improvements in ultra‐light and flexible epitaxial lift‐off GaInP/GaAs/GaInAs solar cells for space applications by Schön, Jonas, Bissels, Gunther M. M. W., Mulder, Peter, Leest, Rosalinda H., Gruginskie, Natasha, Vlieg, Elias, Chojniak, David, Lackner, David

“…A thin, lightweight, flexible solar cell is developed that maximizes the power‐to‐mass ratio under AM0 illumination and has a competitive efficiency after…”
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Outdoor measurements of a full‐size bifacial Pero/Si tandem module under different spectral conditions by Chojniak, David, Steiner, Marc, Reichmuth, Sebastian Kasimir, Rößler, Torsten, Schmid, Alexandra, Siefer, Gerald, Glunz, Stefan W.

“…In recent years, significant progress has been made in terms of efficiency and stability of perovskite on silicon (Pero/Si) tandem solar cells. Nevertheless,…”
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Electrophoretic fabrication of a robust chitosan/polyethylene glycol/polydopamine composite film for UV-shielding application by Huang, Bo-Han, Li, Shih-Yuan, Chiou, Yu-Jie, Chojniak, David, Chou, Shih-Cheng, Wong, Vienna Chi Man, Chen, San-Yuan, Wu, Pu-Wei

“…The film-forming process of chitosan composite films is an important issue because it affects their experimental design, chemicals used, and feasibility of…”
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Wafer‐bonded two‐terminal III‐V//Si triple‐junction solar cell with power conversion efficiency of 36.1% at AM1.5g by Schygulla, Patrick, Müller, Ralph, Höhn, Oliver, Schachtner, Michael, Chojniak, David, Cordaro, Andrea, Tabernig, Stefan, Bläsi, Benedikt, Polman, Albert, Siefer, Gerald, Lackner, David, Dimroth, Frank

“…In this work, we present the fabrication and analysis of a wafer‐bonded GaInP/GaInAsP//Si triple‐junction solar cell with 36.1% conversion efficiency under…”
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Toward more reliable measurement procedures of perovskite‐silicon tandem solar cells: The role of transient device effects and measurement conditions by Messmer, Christoph, Chojniak, David, Bett, Alexander J., Reichmuth, S. Kasimir, Hohl‐Ebinger, Jochen, Bivour, Martin, Hermle, Martin, Schön, Jonas, Schubert, Martin C., Glunz, Stefan W.

“…Perovskite‐silicon (Pero‐Si) tandem solar cells have made remarkable progress in recent years, achieving certified cell efficiencies of up to 33.9%. However,…”
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A precise method for the spectral adjustment of LED and multi‐light source solar simulators by Chojniak, David, Schachtner, Michael, Reichmuth, S. Kasimir, Bett, Alexander J., Rauer, Michael, Hohl‐Ebinger, Jochen, Schmid, Alexandra, Siefer, Gerald, Glunz, Stefan W.

“…Solar simulators based on light‐emitting diodes (LEDs) usually consist of many spectrally different LEDs, which in sum produce a sun‐like spectrum. On the one…”
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Maximizing Current Density in Monolithic Perovskite Silicon Tandem Solar Cells by Heydarian, Minasadat, Messmer, Christoph, Bett, Alexander J., Heydarian, Maryamsadat, Chojniak, David, Kabaklı, Özde Ş., Tutsch, Leonard, Bivour, Martin, Siefer, Gerald, Schubert, Martin C., Goldschmidt, Jan Christoph, Hermle, Martin, Glunz, Stefan W., Schulze, Patricia S. C.

“…Perovskite silicon tandem solar cells can overcome the efficiency limit of silicon single‐junction solar cells. In two‐terminal perovskite silicon tandem solar…”
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Spectrometric Characterization for Triple‐Junction Solar Cells by Aulich, Johanna, Chojniak, David, Bett, Alexander J., Steiner, Marc, Schindler, Florian, Siefer, Gerald, Schubert, Martin C., Goldschmidt, Jan Christoph, Glunz, Stefan W.

“…Spectrometric characterization allows for accurate determination of the current matching point and investigation of sub‐cell properties of multi‐junction solar…”
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Spectrometric Characterization of Monolithic Perovskite/Silicon Tandem Solar Cells by Bett, Alexander J., Chojniak, David, Schachtner, Michael, Reichmuth, S. Kasimir, Kabaklı, Özde Ş., Schulze, Patricia S. C., Fischer, Oliver, Schindler, Florian, Hohl-Ebinger, Jochen, Siefer, Gerald, Schubert, Martin C.

“…In monolithic perovskite/silicon tandem solar cells, it is important to know which subcells are limiting the overall current to adapt the perovskite absorber…”
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