Journal
ADVANCED MATERIALS
Volume 27, Issue 41, Pages 6341-+Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.201503463
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Funding
- Max Planck Society
- University of Munich (LMU)
- Center for NanoScience (CeNS)
- Deutsche Forschungsgemeinschaft (DFG) through the Cluster of Excellence Nanosystems Initiative Munich (NIM)
- Fonds der Chemischen Industrie
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A new optical touchless positioning interface based on ultrasensitive humidity responsive 1D photonic crystals utilizing the giant moisture dependent swelling capacity of 2D phosphatoantimonate nano sheets is presented. The spatially confined, full spectral color change combined with reversible transparency switching induced by the humidity sheath of a human finger allows for real time, true color lateral finger motion tracking under touchless conditions.
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