Waterproof AlInGaP optoelectronics on stretchable substrates with applications in biomedicine and robotics

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Inorganic light-emitting diodes and photodetectors represent important, established technologies for solid-state lighting, digital imaging and many other applications. Eliminating mechanical and geometrical design constraints imposed by the supporting semiconductor wafers can enable alternative uses in areas such as biomedicine and robotics. Here we describe systems that consist of arrays of interconnected, ultrathin inorganic light-emitting diodes and photodetectors configured in mechanically optimized layouts on unusual substrates. Light-emitting sutures, implantable sheets and illuminated plasmonic crystals that are compatible with complete immersion in biofluids illustrate the suitability of these technologies for use in biomedicine. Waterproof optical-proximity-sensor tapes capable of conformal integration on curved surfaces of gloves and thin, refractive-index monitors wrapped on tubing for intravenous delivery systems demonstrate possibilities in robotics and clinical medicine. These and related systems may create important, unconventional opportunities for optoelectronic devices.
Publisher
NATURE PUBLISHING GROUP
Issue Date
2010
Language
English
Article Type
Article
Keywords

LIGHT-EMITTING-DIODES; LASER IRRADIATION; INTEGRATED-CIRCUITS; LOW-COST; PROLIFERATION; ELECTRONICS; DEVICES; DESIGNS; ARRAYS; MODEL

Citation

NATURE MATERIALS, v.9, no.11, pp.929 - 937

ISSN
1476-1122
DOI
10.1038/NMAT2879
URI
http://hdl.handle.net/10203/94506
Appears in Collection
RIMS Journal Papers
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