Student Seminar

¬¬Musical molecules: the molecular junction as an active component in audio distortion circuits

Fri, 23 Feb 2018 1:30 PM
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Student Seminar
¬¬Musical molecules: the molecular junction as an active component in audio distortion circuits

Shayan Gheidi
Dept of Physics, SFU

Feb 23, 2018 at 1:30pm in P8445.2

Synopsis

Non-linear current – voltage characteristics in electronic devices, such as diodes, have been widely implemented in audio analog circuitry, where signal clipping effects lead to the generation of harmonics that define characteristic timbres and tones in electronic instruments. These effects are most notably found in electric guitars where amplifiers involving the circuitry lead to many popular and distinctive sounds. As it turns out, molecular electronics also typically exhibit non-linear I-V behaviour due to quantum mechanical effects. The effects of these molecular devices on audio signals are discussed and compared to other popular devices, such as tube amplifiers. Furthermore, the production of such molecular devices for commercial use is also investigated and reported.