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. 2020 May 6;142(22):10198–10211. doi: 10.1021/jacs.0c03577

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Pb₄S₃Br₂ NCs photoconductor and solar cell characterization. (a) Section of the Pb₄S₃Br₂ NC film on a photodetector (SEM). (b) Optical microscope image of the photodetector with interdigitated electrodes. (c) Current response during light on/light off cycles of a device with interdigitated electrodes. (d) SEM image of a solar cell stack cross-section. (e) Energy level alignment in the stack (Pb₄S₃Br₂ values measured by UPS; ITO, AZO, MoO_x, and Au values from the literature, see refs (46), (68)–⁷¹, respectively). (f) Current–voltage curve under AM1.5G illumination for a solar cell with the stack shown in panel c. Inset: Photo of a representative sample.