Abstract
We fabricated junctions with a single PORPI monolayer, where PORPI is a polymide (PI) Langmuir-Blodgett (LB) film containing a tetraphenylporphyrin (POR) moiety. We then investigated the electron transport properties of the junctions from current-voltage ( I–V) and inelastic electron tunnelling spectroscopy measurements. PI LB films without POR were used as tunnelling barriers. Many peaks were seen in junctions with a PORPI monolayer at low voltages, due to the excitation of vibrational modes of the PORPI molecules, whereas no peak was observed in junctions without PORPI monolayers. One large peak was seen at a voltage around 1.9 V, due to the excitation of electron transitions in PORPI molecules, whereas negative electrical resistance was not observed.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
