Three-Bandgap Absolute Quantum Efficiency in GaSb/GaAs Quantum Dot Intermediate Band Solar Cells

Iñigo Ramiro,Elisa Antolín,Jinyoung Hwang,Alan Teran,Andrew J. Martin,Pablo G. Linares,Joanna Millunchick,Jamie Phillips,Antonio Martí,Antonio Luque

IEEE Journal of Photovoltaics（2017）

引用 22|浏览70

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摘要

In this work, we study type-II GaSb/GaAs quantum-dot intermediate band solar cells (IBSCs) by means of quantum efficiency (QE) measurements. We are able, for the first time, to measure an absolute QE which clearly reveals the three characteristic bandgaps of an IBSC; EG, EH, and EL, for which we found the values 1.52, 1.02, and 0.49 eV, respectively, at 9 K. Under monochromatic illumination, QE at...

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关键词

Temperature measurement,Photovoltaic cells,Quantum dots,Absorption,Energy measurement,Silicon carbide,Gallium arsenide

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