Lanthanide Luminescence to Mimic Molecular Logic and Computing through Physical Inputs

Miguel A. Hernández-Rodríguez, Carlos D.S. Brites*, Guillermo Antorrena, Rafael Piñol, Rafael Cases, Lluïsa Pérez-García, Mafalda Rodrigues, José António Plaza, Nuria Torras, Isabel Díez, Angel Millán, Luís D. Carlos

*Corresponding author for this work

Research output: Contribution to journalArticleScientificpeer-review

12 Citations (Scopus)

Abstract

The remarkable advances in molecular logic reported in the last decade demonstrate the potential of luminescent molecules for logical operations, a paradigm-changing concerning silicon-based electronics. Trivalent lanthanide (Ln3+) ions, with their characteristic narrow line emissions, long-lived excited states, and photostability under illumination, may improve the state-of-the-art molecular logical devices. Here, the use of monolithic silicon-based structures incorporating Ln3+ complexes for performing logical functions is reported. Elementary logic gates (AND, INH, and DEMUX), sequential logic (KEYPAD LOCK), and arithmetic operations (HALF ADDER and HALF SUBTRACTOR) exhibiting a switching ratio >60% are demonstrated for the first time using nonwet conditions. Additionally, this is the first report showing sequential logic and arithmetic operations combining molecular Ln3+ complexes and physical inputs. Contrary to chemical inputs, physical inputs may enable the future concatenation of distinct logical functions and reuse of the logical devices, a clear step forward toward input–output homogeneity that is precluding the integration of nowadays molecular logic devices.

Original languageEnglish
Article number2000312
Number of pages10
JournalADVANCED OPTICAL MATERIALS
Volume8
Issue number12
Early online date1 Jan 2020
DOIs
Publication statusPublished - Jun 2020
MoE publication typeA1 Journal article-refereed

Keywords

  • computing
  • lanthanide
  • luminescence
  • molecular logic
  • physical input

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