2021
DOI: 10.1088/1361-6463/abce7d
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Experimental re-evaluation of proton penetration ranges in GaAs and InGaP

Abstract: Multijunction solar cells based on InGaP and GaAs materials are currently the state of the art for space applications due to their high efficiencies. However, space is a hazardous environment with different energetic particles that degrade the solar cell efficiency, hence decreasing the satellite lifetime. To gain insight in the behaviour of the solar cells under particle bombardment, we study the effect of radiation on InGaP and GaAs layers, constituent materials of III–V solar cells. By means of photolumines… Show more

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Cited by 7 publications
(3 citation statements)
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“…Rigid triple‐junction GaAs solar cells are widely used in spacecrafts from low Earth orbit (LEO) to high Earth orbit (HEO), with high photoelectric conversion efficiency of 30% (air mass zero, AM0, 28 °C) contributed by top GaInP, middle GaAs, and bottom Ge PN junction based subcells. [ 1,2 ] These semiconductor materials absorb photon energy and generate electron–hole pairs, which are separated by their PN junction introduced inner electric fields. [ 3,4 ] However, current solar cell array on spacecraft is still composed of rigid solar cells protected by anti‐radiation glasses, which is neither flexible nor lightweight, takes large launch space, and cannot be integrated with spacecraft.…”
Section: Introductionmentioning
confidence: 99%
“…Rigid triple‐junction GaAs solar cells are widely used in spacecrafts from low Earth orbit (LEO) to high Earth orbit (HEO), with high photoelectric conversion efficiency of 30% (air mass zero, AM0, 28 °C) contributed by top GaInP, middle GaAs, and bottom Ge PN junction based subcells. [ 1,2 ] These semiconductor materials absorb photon energy and generate electron–hole pairs, which are separated by their PN junction introduced inner electric fields. [ 3,4 ] However, current solar cell array on spacecraft is still composed of rigid solar cells protected by anti‐radiation glasses, which is neither flexible nor lightweight, takes large launch space, and cannot be integrated with spacecraft.…”
Section: Introductionmentioning
confidence: 99%
“…The software package SRIM is inaccurate to model protons range in PV cells based on GaInP given the high directionality of its electronic cloud. [149] The changes in optical parameters, due to radiation, increase the phonon intensity observed.…”
Section: Gaas Gainpmentioning
confidence: 98%
“…The reason lies on the difference of electronic bonding distribution in both semiconductors. [149] Radiation study of different architectures of GaAs-based PV cells (TF-based, substrate-based, and shallow and deep junctions). Two architectures are suggested for space applications: substrate-and TF-based with shallow junctions.…”
mentioning
confidence: 99%