Journal Article10.1103/PHYSREVLETT.96.156803
Evidence for Temperature-Dependent Electron Band Dispersion in Pentacene
TL;DR: Intermolecular electronic coupling in pentacene thin films is confirmed to be dependent on temperature and possibly crystal structure, as suggested by additional infrared absorption measurements.
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Abstract: Evidence for temperature-dependent electron band dispersion in a pentacene thin film polymorph on graphite is provided by angle- and energy-dependent ultraviolet photoelectron spectroscopy. The bands derived from the highest occupied molecular orbital exhibit dispersion of $\ensuremath{\sim}190\text{ }\text{ }\mathrm{meV}$ at room temperature, and $\ensuremath{\sim}240\text{ }\text{ }\mathrm{meV}$ at 120 K. Intermolecular electronic coupling in pentacene thin films is thus confirmed to be dependent on temperature and possibly crystal structure, as suggested by additional infrared absorption measurements.
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Citations
Comprehensive photoelectron spectroscopic study of anionic clusters of anthracene and its alkyl derivatives: electronic structures bridging molecules to bulk.
TL;DR: The agreement of the constant VDEs of isomer II-2 with the bulk data demonstrates the largely localized nature of the electronic polarization around the excess charge in a crystal-like environment, where about 50 molecules provide a charge stabilization energy comparable to the bulk.
41
Phase separation in vacuum codeposited pentacene/6,13-pentacenequinone thin films
TL;DR: In this paper, Pentacene (P) and 6,13-pentacenequinone (PQ) have been vacuum codeposited onto thin films for the application as bulk heterojunctions in organic photovoltaic devices.
Effect of Fluorination on the Molecular Packing of Perfluoropentacene and Pentacene Ultrathin Films on Ag (111)
Swee Liang Wong,Han Huang,Yuli Huang,Yuzhan Wang,Xingyu Gao,Toshiyasu Suzuki,Wei Chen,Andrew T. S. Wee +7 more
TL;DR: The growth of perfluoropentacene and pentacene (PEN) ultrathin films on Ag(111) has been investigated using low-temperature scanning tunneling microscopy as discussed by the authors.
39
Photoelectron spectroscopy on the charge reorganization energy and small polaron binding energy of molecular film
Satoshi Kera,Nobuo Ueno +1 more
TL;DR: In this paper, the authors summarized recent progress in direct measurements of valence hole-vibration coupling in ultrathin films of organic semiconductors by using ultraviolet photoelectron spectroscopy (UPS).
39
Impact of low 6,13-pentacenequinone concentration on pentacene thin film growth
TL;DR: In this paper, a vacuum codeposited thin film of pentacene (P) with low concentrations of 6,13-pentacenequinone (PQ) was used to investigate the impact of PQ on its structure.
References
Organic Thin Film Transistors for Large Area Electronics
TL;DR: In this article, the authors present new insight into conduction mechanisms and performance characteristics, as well as opportunities for modeling properties of organic thin-film transistors (OTFTs) and discuss progress in the growing field of n-type OTFTs.
5K
Effect of impurities on the mobility of single crystal pentacene
TL;DR: In this article, the hole mobility for the organic conductor pentacene was obtained at room temperature and at 225 K. The number of traps was reduced by two orders of magnitude compared with conventional methods.
Recent Progress in Organic Electronics: Materials, Devices, and Processes
Tommie W. Kelley,Paul F. Baude,Chris Gerlach,David E. Ender,Dawn V. Muyres,Michael A. Haase,Dennis E. Vogel,Steven D. Theiss +7 more
TL;DR: Research in organic electronics has included advances in materials, devices, and processes as mentioned in this paper, which are enabling the incorporation of organic electronic components in products including OLED displays and flexible electronic paper.
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The effect of impurities on the mobility of single crystal pentacene
TL;DR: In this paper, a hole mobility for the organic conductor pentacene of 35 cm2/Vs at room temperature increasing to 58 cm2 /Vs at 225k was obtained.