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Extended Data Fig. 7 | Pulse-height spectrum for^6 Li-enriched LiInP 2 Se 6
devices. a–e, Data are shown for^6 Li-enriched LiInP 2 Se 6 devices with areas of
7 × 7 mm^2 (a, b), 5 × 5 mm^2 (c) and 3 × 3 mm^2 (d, e). Devices with larger electrode
areas had lower energy resolutions for electron collection, possibly owing to
property variation among different samples. f, As-made LiInP 2 Se 6 detectors
with a diameter of 2 mm (‘1’) and 5 mm (‘2’) on the same single crystal. g, Time-
dependent α-particle spectra collection by LiInP 2 Se 6 detector 2 in f. We note
that the peak channel number and count rate per second were constant over
time. h, Collection of α-particle spectra by detector 1 in f with a pulse generator.
i, Collection of α-particle spectra by detector 2 in f with a pulse generator. We
note that the positions of the pulser peak in h and i are the same and the
corresponding energy resolution is (3.5 ± 0.1)%, indicating the same
electronics noise during collection.