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Title: Reprogrammable and Reconfigurable Photonic Molecular Logic Gates Based on Ln3+ Ions
Author: Zanella, S.
Hernández-Rodríguez, Miguel A.
Fu, L.
Carlos, Luís D.
Ferreira, Rute A.S.
Brites, C.D.S.
Issue Date: May-2022
Publisher: Wiley-Blackwell
Abstract: The miniaturization of the silicon chips is reaching its physical limits, and the transistors are so small that current leakage will become an insurmountable problem. Additionally, the actual chip shortage makes clear the excessive world dependence on silicon, stressing the need for silicon-free computing strategies. Quantum computing process information by manipulating photons, and computation performed by individual molecules are being proposed as alternatives, with potential benefits in terms of miniaturization, performance enhancement, and energy efficiency. Molecular logics can play a decisive role in the future of the computer industry, and the unique photonic characteristics of trivalent lanthanide ions make them suitable candidates to integrate future molecular logic applications. In this work, a Eu3+/Tb3+ co-doped organic–inorganic hybrid is presented as an illustrative all-photonic logic platform constructed through the decay dynamics of both lanthanide and hybrid host emissions. Besides combinatory AND, NAND, and INH logic gates, this system presents on-choice Eu3+, Tb3+, or host emission enabling the development of reprogrammable and reconfigurable photonic molecular logic gates. All-photonic temperature-reprogrammable changes from AND to INH logic gates and a reconfiguration among INH and AND1 or AND2 gates, based on the excitation wavelength are demonstrated, showing a clear step forward toward mirroring electronic logic counterparts
Peer review: yes
DOI: 10.1002/adom.202200138
ISSN: 2195-1071
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