Science Advances

Supplementary Materials

This PDF file includes:

  • fig. S1. Ultraflexible seven-segment display on hands (showing numbers from 0 to 9).
  • fig. S2. Ultraflexible seven-segment display on hands (showing letters from A to Z).
  • fig. S3. The fabrication process of ultraflexible PLEDs.
  • fig. S4. Picture and characteristics of ultraflexible PLEDs.
  • fig. S5. CIE 1931 chromaticity coordinates (x, y) of PLEDs on ultraflexible substrates.
  • fig. S6. Lifetime test of the ultraflexible green PLEDs.
  • fig. S7. Characteristics of green PLEDs on a glass substrate (red) and an ultraflexible substrate (blue).
  • fig. S8. Surface roughness of the ultraflexible substrate.
  • fig. S9. Surface roughness of ITO electrodes on an ultraflexible substrate.
  • fig. S10. Characteristics of green PLEDs on 2-μm-thick transparent polyimide substrate (red) and 1.4-μm-thick polyethylene terephthalate substrates (blue).
  • fig. S11. Fabrication process of ultraflexible OPDs.
  • fig. S12. Green PLED characteristics before and after peeling from a supporting substrate.
  • fig. S13. Measurement setup for the cyclic stretching test.
  • fig. S14. J-V characteristics of the OPD (dot line, dark state; solid line, irradiated by a green laser (532 nm).
  • fig. S15. Characteristics of the OPD with green and red PLED irradiation.
  • fig. S16. Output signals from OPDs irradiated with PLEDs.
  • fig. S17. Air stability of the PPG signal.
  • fig. S18. Characteristics of the passivation layer.
  • Supplementary Materials and Methods
  • Legends for movies S1 to S3

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Other Supplementary Material for this manuscript includes the following:

  • movie S1 (.wmv format). Operation of seven-segment display on hands.
  • movie S2 (.wmv format). Operation of crumpled green PLED.
  • movie S3 (.wmv format). Demonstrations of extreme flexibility of ultraflexible PLEDs.

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