articleAdvanced MaterialsJul 14, 2008Closed access

Exciton Diffusion Measurements in Poly(3‐hexylthiophene)

PEPaul E. ShawARArvydas RuseckasIDIfor D. W. Samuel

University of St Andrews

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Abstract

The problem of making reliable measurements of exciton diffusion lengths in organic semiconductors is addressed. The exciton diffusion length is an extremely important quantity in the operation of organic solar cells. We focus on the polymer P3HT because of its widespread use in solar cells and are able to fit the exciton diffusion in a range of films with a single diffusion constant, showing that our approach is particularly robust.

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Topics & keywords

Topics
Keywords
  • Exciton
  • Diffusion
  • Materials science
  • Organic semiconductor
  • Organic solar cell
  • Semiconductor
  • Fick's laws of diffusion
  • Polymer
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