Relationship between crystalline order and exciton diffusion length in molecular organic semiconductors

Richard R. Lunt, Jay B. Benziger, Stephen R. Forrest

Research output: Contribution to journalArticle

  • 183 Citations

Abstract

The effect of crystalline order on the exciton diffusion length (L D) is shown for the archetypal organic semiconductor 3,4,9,10-perylenetetracarboxylic dianhydride (PTCDA; see figure). LD increases from ∼6.5 nm in the amorphous limit to ∼2S nm for single crystals. These changes in diffusion length are connected to changes in the fluorescence quantum yield, which is useful for understanding where crystal-size-dependant diffusion trends are likely to be observed for other organic materials.

Original languageEnglish (US)
Pages (from-to)1233-1236
Number of pages4
JournalAdvanced Materials
Volume22
Issue number11
DOIs
StatePublished - Mar 19 2010
Externally publishedYes

Profile

Feline Sarcoma Viruses
Ergothioneine
Bacillus anthracis
Semiconducting organic compounds
Excitons
Crystalline materials
Erythrocyte Inclusions
Traffic Accidents
Arthrodesis
Carcinoid Tumor
Quantum yield
Fluorescence
Crystals

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

Cite this

Relationship between crystalline order and exciton diffusion length in molecular organic semiconductors. / Lunt, Richard R.; Benziger, Jay B.; Forrest, Stephen R.

In: Advanced Materials, Vol. 22, No. 11, 19.03.2010, p. 1233-1236.

Research output: Contribution to journalArticle

Lunt, Richard R.; Benziger, Jay B.; Forrest, Stephen R. / Relationship between crystalline order and exciton diffusion length in molecular organic semiconductors.

In: Advanced Materials, Vol. 22, No. 11, 19.03.2010, p. 1233-1236.

Research output: Contribution to journalArticle

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