Journal
PHYSICAL REVIEW B
Volume 80, Issue 8, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevB.80.081411
Keywords
band structure; carrier mobility; density functional theory; effective mass; organic semiconductors; photoemission; semiconductor growth; semiconductor thin films
Funding
- NSF [DMR-0537588]
Ask authors/readers for more resources
The band dispersion of the two highest occupied molecular orbital (HOMO)-derived bands in thin crystalline pentacene films grown on Bi(001) was determined by photoemission spectroscopy. Compared to first-principles calculations, our data show a significantly smaller bandwidth and a much larger band separation, indicating that the molecular interactions are weaker than predicted by theory-a direct contradiction to previous reports by H. Kakuta [Phys. Rev. Lett. 98, 247601 (2007)]. The effective hole mass m(*) at M is found to be anisotropic and larger than theoretically predicted. Comparison of m(*) to field effect mobility measurements shows that the band structure has a strong influence on the mobility even at room temperature.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available