4.8 Article

Multivalued Logic for Optical Computing with Photonically Enabled Chiral Bio-organic Structures

Journal

ACS NANO
Volume -, Issue -, Pages -

Publisher

AMER CHEMICAL SOC
DOI: 10.1021/acsnano.2c04182

Keywords

bio-organic field-effect structures; chiral nematic photonic; multivalued logic systems; optical multilevel computing; multifunctional electronics

Funding

  1. Air Force Research Laboratory [FA8650-D-16-5404]
  2. Air Force Office for Scientific Research [FA9550-20-1-0305]
  3. South Korea National Research Foundation (NRF) [MSIT:2021R1A6A3A14039290]

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In this paper, photonic bio-organic multiphase structures are proposed for integrated thin-film electronic nets with multilevel logic elements for multilevel computing. The adaptive logic elements are capable of triggering tailored quantized electrical output signals under light with different photon energy and at different photonic bandgaps. This proof-of-concept bio-assisted multivalued logic structure facilitates an optical computing system for low-power optical information processing integrated with human-machine interfaces.
Photonic bio-organic multiphase structures are suggested here for integrated thin-film electronic nets with multilevel logic elements for multilevel computing via a reconfigurable photonic bandgap of chiral biomaterials. Herein, inspired by an artificial intelligence system with efficient information integration and computing capability, the photonically active dielectric layer of chiral nematic cellulose nanocrystals is combined with printed-in p-and n type organic semiconductors as a bifunctional logical element. These adaptive logic elements are capable of triggering tailored quantized electrical output signals under light with different photon energy and at the different photonic bandgaps of the active dielectric layer. The bifunctional structures enable complex memory behavior upon repetitive changes of photonic bandgap (controlled by expansion/contraction of chiral nematic pitch) and photon energy (controlled by light absorption wavelength of complementary organic semiconductor layers), exhibiting effectively a reconfigurable ternary logic response. This proof-of-concept bio-assisted multivalued logic structure facilitates an optical computing system for low-power optical information processing integrated with human-machine interfaces.

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