Triple-junction solar cells with 39.5% terrestrial and 34.2% space efficiency enabled by thick quantum well superlattices
نویسندگان
چکیده
Summary Multijunction solar cell design is guided by both the theoretical optimal bandgap combination as well realistic limitations to materials with these bandgaps. For instance, triple-junction III-V multijunction cells commonly use GaAs a middle because of its near-perfect material quality, despite being higher than for global spectrum. Here, we modify using thick GaInAs/GaAsP strain-balanced quantum (QW) excellent voltage and absorption. These high-performance QWs are incorporated into inverted metamorphic device consisting GaInP top cell, QW lattice-mismatched GaInAs bottom each which has been highly optimized. We demonstrate efficiencies 39.5% 34.2% under AM1.5 AM0 space spectra, respectively, efficiency previous record six-junction devices.
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ژورنال
عنوان ژورنال: Joule
سال: 2022
ISSN: ['2542-4351', '2542-4785']
DOI: https://doi.org/10.1016/j.joule.2022.04.024