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Development and Characterization of a bottom-up InP Nanowire Solar Cell with 16.7% Efficiency

: Hrachowina, L.; Zhang, Y.; Saxena, A.; Siefer, G.; Barrigon, E.; Borgström, M.T.


Institute of Electrical and Electronics Engineers -IEEE-:
47th IEEE Photovoltaic Specialists Conference, PVSC 2020 : 15-21 June 2020, Calgary, Canada, Virtual Meeting
Piscataway, NJ: IEEE, 2020
ISBN: 978-1-7281-6116-7 (Print)
ISBN: 978-1-7281-6115-0
Photovoltaic Specialists Conference (PVSC) <47, 2020, Online>
Conference Paper
Fraunhofer ISE ()

We report on a solar cell using bottom-up synthesized InP nanowire arrays with an independently verified power conversion efficiency of 16.7% under AM1.5G solar spectrum. This value, which is the highest reported efficiency for bottom-up synthesized nanowire solar cells, was reached after a stabilized improvement of the device during characterization, by improving both back and front contacts of the more than five million nanowires that are connected in parallel in our solar cell.