Lanthanide Luminescence to Mimic Molecular Logic and Computing through Physical Inputs

authors	Hernandez-Rodriguez, MA; Brites, CDS; Antorrena, G; Pinol, R; Cases, R; Perez-Garcia, L; Rodrigues, M; Plaza, JA; Torras, N; Diez, I; Millan, A; Carlos, LD
nationality	International
journal	ADVANCED OPTICAL MATERIALS
author keywords	computing; lanthanide; luminescence; molecular logic; physical input
keywords	CYCLEN COMPLEXES; GATES; FLUORESCENCE; THERMOMETER; MEMORY; NANOPARTICLES; ELECTRONICS; OPERATIONS; DESIGN; SENSE
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 (Ln(3+)) 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 Ln(3+)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 Ln(3+)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.
publisher	WILEY-V C H VERLAG GMBH
issn	2195-1071
year published	2020
volume	8
issue	12
digital object identifier (doi)	10.1002/adom.202000312
web of science category	Materials Science, Multidisciplinary; Optics
subject category	Materials Science; Optics
unique article identifier	WOS:000545595600013