Thursday, July 1, 2010

Charge transport in organic photovoltaic materials

Today I am chairing a session on charge transport at an I2CAM Exploratory Workshop, Complex Interactions and Mechanisms in Organic Photovoltaics being held here at UQ.
I have written quite a few posts on this topic before. I believe some of the key questions concerning charge transport in molecular materials are:
  • What is the mechanism of charge transport?
  • What is the origin of the observed electric field dependent mobility?
  • What determines the relative magnitude of electron and hole mobilities?
  • How does mobility depend on the intermolecular separation and relative orientation?
  • Would thermopower measurements be helpful in determining the charge transport mechanism?

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