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Researchers Achieve First Miniaturized Thin-Film Perovskite Image Sensors

Vertically stacked perovskite pixels triple light capture in two functional prototypes measuring 0.5–1 millimeters, with future efforts devoted to pixel miniaturization alongside tailored readout electronics.

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Overview

  • Each perovskite sensor stacks red-, green- and blue-sensitive layers in a vertical arrangement, eliminating the need for lossy optical filters.
  • These thin films feature pixel dimensions between 0.5 and 1 millimeter, showcasing a transition from proof of concept toward practical device scales.
  • Laboratory tests indicate these sensors can theoretically capture three times more light and deliver triple the spatial resolution of silicon counterparts.
  • The materials’ tunable halide compositions enable customized absorption bands, opening the door for hyperspectral imaging in medical diagnostics and environmental monitoring.
  • Researchers plan to reduce pixel sizes to the micrometer range and to develop specialized readout electronics that accommodate perovskite’s unique semiconductor properties.