Design principles of dual-functional molecular switches in solid-state tunnel junctions | Zendy

Damien Thompson | Zendy; Enrique del Barco | Zendy; Christian A. Nijhuis | Zendy

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Design principles of dual-functional molecular switches in solid-state tunnel junctions

Author(s) -

Damien Thompson,

Enrique del Barco,

Christian A. Nijhuis

Publication year - 2020

Publication title -

applied physics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.182

H-Index - 442

eISSN - 1077-3118

pISSN - 0003-6951

DOI - 10.1063/5.0016280

Subject(s) - molecular electronics , molecular switch , dual (grammatical number) , diode , materials science , nanotechnology , tunnel junction , molecule , electronics , break junction , computer science , optoelectronics , chemistry , electrical engineering , quantum tunnelling , engineering , art , literature , organic chemistry

Molecular electronics has improved tremendously over the past 20 years, but it remains challenging to develop molecular switches that operate well in two-terminal tunnel junctions. Emerging technologies demand multi-functional junctions that can switch between different operations within a single molecule or molecular monolayer. Usually the focus is placed on molecules that shift the junctions between high and low conductance states, but here we describe molecular junctions with dual-functional switching capability. We discuss the operating mechanism of such switches and present examples of “two-in-one” junctions of a diode placed in series with an additional switch, which can operate either as an electrostatic or a memory on/off switch. We propose guidelines for future designs of such dual-function molecular switches and provide an outlook for future directions of research.

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