Correlation between thermal fluctuation effects and phase coherence factor in carrier transport of single-crystal organic semiconductors
2015; American Institute of Physics; Volume: 106; Issue: 14 Linguagem: Inglês
10.1063/1.4916734
ISSN1520-8842
AutoresT. Fukami, Hiroyuki Ishii, Nobuhiko Kobayashi, Takafumi Uemura, Kenichi Sakai, Yugo Okada, Jun Takeya, Kei Hirose,
Tópico(s)Organic Electronics and Photovoltaics
ResumoWe find that the phase coherence factor derived from Hall effect measurements of single-crystal thin-film field-effect transistors of pentacene, which relates the intrinsic charge transport with the phase coherence, has a strong correlation with the thermal fluctuations of transfer energies between neighboring molecules. This observation also holds true for other organic semiconductors such as tetracene, dianthrathiophene (DAT)-V, and dinaphtho[2,3-b:2′,3′-f]thieno[3,2-b]thiophene (DNTT). This gives us clues for constructing flexible molecular systems with high carrier mobility.
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