Journal
CONDENSED MATTER PHYSICS
Volume 21, Issue 4, Pages -Publisher
INST CONDENSED MATTER PHYSICS NATL ACAD SCIENCES UKRAINE
DOI: 10.5488/CMP.21.43301
Keywords
stilbene; molecular device; electron density; switching; transmission
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Funding
- Nano Mission Council Department of Science & Technology, India [SR/NM/NS-1011/2017]
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The switching behaviour of stilbene molecular system (SMS) device is investigated with the help of non-equilibrium Green's function (NEGF) approach using first principles calculation. The transmission spectrum of cisisomers confirmed that more electrons are transferred across the SMS-device using optical excitation by the spin of C=C bond by torsion angle (theta = 180 degrees). The current-voltage characteristics show the lower magnitude of current for trans-stilbene and higher magnitude of current for cis-stilbene for an externally applied bias voltage. The outcome of the proposed work suggests that cis and trans-stilbene molecular device can be used as a switch.
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