Journal ArticleDOI
Digital processing and communication with molecular switches
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TLDR
In this paper, the three basic logic operations (AND, NOT, and OR) and more complex logic functions (EOR, INH, NOR, XNOR, and XOR) have been reproduced already at the molecular level.Abstract:
The tremendous pace in the development of information technology is rapidly approaching a limit. Alternative materials and operating princlples for the elaboration and communication of data in electronic circults and optical networks must be identified. Organic molecules are promising candidates for the realization of future digital processors. Their attractive features are the miniaturized dimensions and the high degree of control on molecular design possible in chemical synthesis. Indeed, nanostructures with engineered properties and specific functions can be assembled relying on the power of organic synthesis. In particular, certain molecales can be designed to switch from one state to another, when addressed with chemical, electrical, or optical stimulations, and to produce a detectable signal in response to these transformations. Binary data can be enceded on the input stimulations and output signals employing logic conventions and assumptions similar to those ruting digital electronics. Thus, binary inputs can be transduced into binary outputs relying on molecular switches. Following these design principles, the three basic logic operations (AND, NOT, and OR) and more complex logic functions (EOR, INH, NOR, XNOR, and XOR) have been reproduced already at the molecular level. Presently, these simple "molecular processors" are far from any practical application. However, these encouraging results demonstrate already that chemical systems can process binary data with designed logic protocols. Further fundamental studies on the various facets of this emerging area will reveal if and how molecular switches can become the basic components of furture logic devices. After all, chemical computers are available atready. We all carry one in our head!read more
Citations
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Atypical photomagnetic properties in a series of binuclear iron(II) spin crossover complexes
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References
More filters
Journal ArticleDOI
Molecular computation of solutions to combinatorial problems
TL;DR: This experiment demonstrates the feasibility of carrying out computations at the molecular level by solving an instance of the directed Hamiltonian path problem with standard protocols and enzymes.
Journal ArticleDOI
Conductance of a Molecular Junction
Mark A. Reed,Mark A. Reed,Chongwu Zhou,Chongwu Zhou,C. J. Muller,C. J. Muller,T. P. Burgin,T. P. Burgin,James M. Tour,James M. Tour +9 more
TL;DR: In this paper, benzene-1,4-dithiol molecules were self-assembled onto the two facing gold electrodes of a mechanically controllable break junction to form a statically stable gold-sulfur-aryl-solfur-gold system, allowing for direct observation of charge transport through the molecules.
Journal ArticleDOI
Electronics using hybrid-molecular and mono-molecular devices
TL;DR: ‘mono-molecular’ electronics, in which a single molecule will integrate the elementary functions and interconnections required for computation, is proposed.
Journal ArticleDOI
Logic circuits with carbon nanotube transistors
TL;DR: This work demonstrates logic circuits with field-effect transistors based on single carbon nanotubes that exhibit a range of digital logic operations, such as an inverter, a logic NOR, a static random-access memory cell, and an ac ring oscillator.