Andreev Reflection in a Superconducting Light-Emitting Diode.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 30350636.
- Also identified by DOI 10.1021/acs.nanolett.8b02511.
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Abstract
We experimentally demonstrate Cooper-pair injection into a superconducting light-emitting diode by observing Andreev reflection at the superconductor-semiconductor interface, overcoming the contradicting requirements of an electrically transparent interface and radiative recombination efficiency. The device exhibits electroluminescence enhancement at the quasi-Fermi energy at temperatures below T<sub>c</sub>. The theoretically predicted conductance and electroluminescence spectra based on Cooper-pair injection into the semiconductor correspond well to our experimental results. Our findings pave the way for practical superconductor-semiconductor quantum light sources.