Spectrally resolved x-ray beam induced current in a single InGaP nanowire

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Spectrally resolved x-ray beam induced current in a single InGaP nanowire. / Chayanun, Lert; Dagyte, Vilgaile; Troian, Andrea; Salomon, Damien; Borgström, Magnus; Wallentin, Jesper.

In: Nanotechnology, Vol. 29, No. 45, 454001, 10.09.2018.

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TY - JOUR

T1 - Spectrally resolved x-ray beam induced current in a single InGaP nanowire

AU - Chayanun, Lert

AU - Dagyte, Vilgaile

AU - Troian, Andrea

AU - Salomon, Damien

AU - Borgström, Magnus

AU - Wallentin, Jesper

PY - 2018/9/10

Y1 - 2018/9/10

N2 - We demonstrate x-ray absorption fine structure spectroscopy (XAFS) detected by x-ray beam induced current (XBIC) in single n + -i-n + doped nanowire devices. Spatial scans with the 65 nm diameter beam show a peak of the XBIC signal in the middle segment of the nanowire. The XBIC and the x-ray fluorescence signals were detected simultaneously as a function of the excitation energy near the Ga K absorption edge at 10.37 keV. The spectra show similar oscillations around the edge, which shows that the XBIC is limited by the primary absorption. Our results reveal the feasibility of the XBIC detection mode for the XAFS investigation in nanostructured devices.

AB - We demonstrate x-ray absorption fine structure spectroscopy (XAFS) detected by x-ray beam induced current (XBIC) in single n + -i-n + doped nanowire devices. Spatial scans with the 65 nm diameter beam show a peak of the XBIC signal in the middle segment of the nanowire. The XBIC and the x-ray fluorescence signals were detected simultaneously as a function of the excitation energy near the Ga K absorption edge at 10.37 keV. The spectra show similar oscillations around the edge, which shows that the XBIC is limited by the primary absorption. Our results reveal the feasibility of the XBIC detection mode for the XAFS investigation in nanostructured devices.

KW - nanowire

KW - x-ray absorption fine structure spectroscopy (XAFS)

KW - x-ray beam induced current (XBIC)

U2 - 10.1088/1361-6528/aadc76

DO - 10.1088/1361-6528/aadc76

M3 - Article

C2 - 30136654

AN - SCOPUS:85053410087

VL - 29

JO - Nanotechnology

JF - Nanotechnology

SN - 0957-4484

IS - 45

M1 - 454001

ER -