Factors of Frank Condon Blockade

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SUMMARY

The discussion focuses on the factors affecting Frank Condon Blockade (FCB), which is the suppression of current flow due to the inability of molecules to transition into new vibrational levels that align with the nuclear positions and momenta of the originating electronic state. The participant references a paper from arXiv (0812.3826) for further insights but expresses difficulty in comprehending the factors contributing to FCB. Key factors include the speed of electron transfer compared to molecular vibrational adjustments.

PREREQUISITES
  • Understanding of quantum mechanics principles related to electron transfer.
  • Familiarity with vibrational levels in molecular systems.
  • Knowledge of electronic states and their transitions.
  • Basic comprehension of current flow in molecular electronics.
NEXT STEPS
  • Review the paper "Quantum Dynamics of Electron Transfer" on arXiv for detailed theoretical insights.
  • Study the concept of vibrational coupling in molecular systems.
  • Explore the implications of FCB in molecular electronics and its impact on device performance.
  • Investigate experimental methods to measure FCB effects in various materials.
USEFUL FOR

Researchers in molecular electronics, physicists studying quantum mechanics, and graduate students focusing on electron transfer dynamics will benefit from this discussion.

bekjunhao
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Homework Statement [/b]

Which are the factors that affects and causes frank condon blockade?

The attempt at a solution[/b]

First of all, i understand that FCB is the suppression of current flow due to the fact that your molecules can't enter the new vibrational level compatible with the nuclear positions and momenta of the vibrational level of the molecule in the originating electronic state AS FAST AS your electron jumping from the electrode to the molecule.

I tried reading the paper found here
http://arxiv.org/ftp/arxiv/papers/0812/0812.3826.pdf

But i really need some help with understanding the factors that are causing FCB in a general case, can't digest the paper after reading it.

Thank you guys so much~~
 
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