Search Results - "Hoheisel, R."

Energy harvesting efficiency of III–V triple-junction concentrator solar cells under realistic spectral conditions by Philipps, S.P., Peharz, G., Hoheisel, R., Hornung, T., Al-Abbadi, N.M., Dimroth, F., Bett, A.W.

“…In this paper we present a methodology that uses the detailed balance method to determine the optimum bandgap combination of III–V triple-junction solar cells…”
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Recommendations of the German Respiratory Society (DGP) on Hygiene Measures During Treatment of Patients with Lung Diseases in the Outpatient Physiotherapy Practice in Times of the SARS-CoV-2 Pandemic by Hellmuth, T, Hoppe, D, Teschler, S, Hoheisel, R, Hillmann, T

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DataCell - A Solar Cell Integrated Modulating Retroreflector by Hoheisel, R., Kessler-Lewis, E., Polly, S., Hubbard, S.

“…The concept of a hybrid solar cell with an integrated multi-quantum well modulating retroreflector is presented. This device can be fabricated by monolithic…”
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Spectral sensitivity of hot carrier solar cells by Hirst, L.C., Lumb, M.P., Hoheisel, R., Bailey, C.G., Philipps, S.P., Bett, A.W., Walters, R.J.

“…In this paper we present detailed balance simulations which determine the material parameters required to produce hot carrier solar cell (HCSC) annual energy…”
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Long-term energy production of III-V triple-junction solar cells on the Martian surface by Hoheisel, R., Philipps, S. P., Bett, A. W.

“…Based on theoretical considerations, optimum triple‐junction bandgap combinations are determined in order to achieve highest electrical energy production for a…”
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Towards high efficiency multi-junction solar cells grown on InP Substrates by Gonzalez, M., Lumb, M. P., Yakes, M. K., Bailey, C. G., Tischler, J. G., Hoheisel, R., Abell, J., Vurgaftman, I., Meyer, J., Maximenko, S., Jenkins, P. P., Molina, S. I., Delgado-Gonzalez, F. J., Bahena, D., Ponce, A., Adams, J. G. J., Fuhrer, M., Ekins-Daukes, N., Walters, R. J.

“…Progress toward the development of multi-junction solar cells grown on InP substrates is presented. In this material system, the optimal bandgaps for solar…”
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Characterization of high fluence irradiations on advanced triple junction solar cells by Maximenko, S. I., Messenger, S. R., Hoheisel, R., Scheiman, D., Gonzalez, M., Lorentzen, J., Jenkins, P. P., Walters, R. J.

“…Reported is the characterization of irradiated InGaP 2 /GaAs/Ge multijunction (MJ) solar cells using the cathodoluminescence (CL) imaging/spectroscopy and…”
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High fluence irradiations on triple junction solar cells by Messenger, S. R., Hoheisel, R., Lorentzen, J., Scheiman, D., Warner, J. H., Gonzalez, M., Jenkins, P. P.

“…Triple junction GaInP/InGaAs/Ge solar cells were irradiated with 3 MeV protons to extreme fluences as high as 10 15 p + /cm 2 . In this paper, IV and QE…”
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Improved bandgap-voltage offset in InGaAs/InAlGaAs quantum well solar cells by Bailey, C. G., Lumb, M. P., Forbes, D. V., Yakes, M. K., Gonzalez, M., Hubbard, S. M., Hoheisel, R., Hirst, L. C., Tischler, J. G., Vurgaftman, I., Meyer, J. R., Walters, R. J.

“…In recent years, the implementation of bandgap engineering techniques for solar energy conversion has been demonstrated with exciting results, using both…”
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Low temperature effects in photovoltaic devices for deep space missions by Hoheisel, R., Walters, R. J., Bett, A. W.

“…Experimental results of solar cells tested under deep space conditions are presented. The impact of low intensity and low temperature (LILT) conditions on the…”
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Low Temperature Low Intensity Effects in III-V Photovoltaic Devices for Deep Space Missions by Hoheisel, R., Bett, A.W., Warner, J.H., Walters, R.J., Jenkins, P.P.

“…Experimental results of GaAs solar cells tested under deep space conditions are presented. The impact of low intensity and low temperature (LILT) conditions on…”
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High-altitude balloon based AM0 solar cell calibration platform by Hoheisel, R., Lorentzen, J.

“…A high-altitude AM0 solar cell calibration platform capable of attaining conditions close to those of space, i.e. 30km (100,000ft) or more is presented. The…”
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Experimental Analysis of Majority Carrier Transport Processes at Heterointerfaces in Photovoltaic Devices by Hoheisel, R., Bett, A. W.

“…The transport processes of majority carriers through potential barriers at heterointerface layers of GaAs solar cell structures are experimentally analyzed by…”
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Temperature dependence of triple junction solar cells after high fluence irradiations by Scheiman, D. A., Lorentzen, J. R., Hoheisel, R., Messenger, S. R., Jenkins, P. P.

“…The NRL TacSat-4 Satellite was launched into a highly elliptical orbit on September 27 th 2011. The solar panels are populated with Emcore ATJ cells. The solar…”
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Impact of solar simulator spectrum on multi-junction solar cell measurement by Lorentzen, J. R., Scheiman, D. A., Hoheisel, R., Walters, R. J., Jenkins, P. P.

“…Accurate laboratory measurement of the IV parameters of multi-junction (MJ) solar cells is highly dependent on the incident spectrum. This paper examines the…”
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Determination of the subcell photovoltage in multijunction solar cells via voltage-dependent capacitance analysis by Hoheisel, R., Schachtner, M., Stämmler, E., Bett, A. W.

“…The letter describes a method for determining the photovoltage, i.e., the quasifermi level splitting at open-circuit conditions, associated with each subcell…”
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Investigation of InAlGaAs / InGaAs quantum well solar cells by Bailey, C. G., Jenkins, P. P., Walters, R. J., Forbes, D. V., Lumb, M. P., Hoheisel, R., Gonzalez, M., Hubbard, S. M., Hirst, L. C., Schmieder, K., Yakes, M. K.

“…An investigating into InAlGaAs/InGaAs quantum well solar cells (QWSCs) is presented. The QWSCs consisted of sixteen layers of 5 nm InGaAs QWs / 10 nm InAlGaAs…”
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Effects of non-ideal solar simulator spectrum on multi-junction solar cell measurement by Lorentzen, J. R., Scheiman, D. A., Hoheisel, R., Walters, R. J., Jenkins, P. P.

“…Laboratory measurement of the IV parameters of multi-junction (MJ) solar cells is performed using solar simulators designed to match the desired illumination…”
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Quantum-Well Solar Cells for Space: The Impact of Carrier Removal on End-of-Life Device Performance by Hoheisel, R., Gonzalez, M., Lumb, M. P., Scheiman, D. A., Messenger, S. R., Bailey, C. G., Lorentzen, J., Tibbits, T. N. D., Imaizumi, M., Ohshima, T., Sato, S., Jenkins, P. P., Walters, R. J.

“…In this paper, a detailed analysis on the radiation response of solar cells with multi quantum wells (MQW) included in the quasi-intrinsic region between the…”
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Investigation of Radiation Hardness of Germanium Photovoltaic Cells by Hoheisel, R, Fernandez, J, Dimroth, F, Bett, A W

“…This contribution discusses the radiation hardness of germanium (Ge) photovoltaic cells under space conditions corresponding to an irradiation dose of 1-MeV 1…”
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