Thin bismuth film as a template for pentacene growth

Sadowski, J. T.; Nagao, T.; Yaginuma, S.; Fujikawa, Y.; Al-Mahboob, A.; Nakajima, K.; Sakurai, T.; Thayer, G. E.; Tromp, R. M.
February 2005
Applied Physics Letters;2/14/2005, Vol. 86 Issue 7, p073109
Academic Journal
Thin Bi(001) films grown by ultrahigh vacuum deposition on Si(111)-7×7 surfaces at room temperature, were annealed at ∼400 K in order to improve their morphology by reducing the step density on the surface. Annealed, well-ordered Bi(001) films have been subsequently used as substrates for growth of pentacene (Pn). It has been determined using low-energy electron microscope that Pn nucleates on Bi(001) into a highly ordered, crystalline layer, with Pn molecules “standing up” on the Bi surface, and the (001) plane on the growth front. Moreover, the Pn layer is aligned with the Bi(001) surface having a “point-on-line” commensurate relationship with the substrate. The Pn/Bi(001) film crystallizes in a bulk-like structure directly from the first Pn layer. Formation of the thin film phase reported for the Pn growth on SiO2 and other inert substrates was not observed in our experiments.


Related Articles

  • A high-K ferroelectric relaxor terpolymer as a gate dielectric for organic thin film transistors. Wu, Shan; Shao, Ming; Burlingame, Quinn; Chen, Xiangzhong; Lin, Minren; Xiao, Kai; Zhang, Q. M. // Applied Physics Letters;1/7/2013, Vol. 102 Issue 1, p013301 

    Poly(vinylidenefluoride-trifluoroethylene-chlorofluoroethylene) (P(VDF-TrFE-CFE)) is a ferroelectric terpolymer relaxor with a static dielectric constant of 50, which was developed using defect modification to eliminate remnant polarization in the normal ferroelectric PVDF. In this work, this...

  • Effect of surface free energy in gate dielectric in pentacene thin-film transistors. Wei-Yang Chou; Chia-Wei Kuo; Horng-Long Cheng; Yi-Ren Chen; Tang, Fu-Ching; Feng-Yu Yang; Dun-Yin Shu; Chi-Chang Liao // Applied Physics Letters;9/11/2006, Vol. 89 Issue 11, p112126 

    The surface free energy of a dielectric has a strong influence on the performance of pentacene thin-film transistors. Research shows that by matching surface free energy in the interface of the dielectric and the orthorhombic thin-film phase of pentacene film, the field-effect mobility of...

  • Organic field effect transistor mobility from transient response analysis. Dunn, Lawrence; Basu, Debarshi; Liang Wang; Dodabalapur, Ananth // Applied Physics Letters;2/6/2006, Vol. 88 Issue 6, p063507 

    An electronic method for analyzing the transient response of a pentacene organic field effect transistor at time scales below 100 ns is presented with analysis that allows extraction of estimated field-dependent device mobility from the measured carrier velocity. A second technique we propose is...

  • High-field-effect-mobility pentacene thin-film transistors with polymethylmetacrylate buffer layer. De Angelis, F.; Cipolloni, S.; Mariucci, L.; Fortunato, G. // Applied Physics Letters;5/16/2005, Vol. 86 Issue 20, p203505 

    A thin film of polymethylmetacrylate (PMMA) acting as a buffer layer has been employed in order to fabricate high-quality pentacene thin-film transistors (TFTs), both in bottom contact and top contact configuration. A PMMA buffer layer allows to reduce the interaction between a π-conjugated...

  • Flexible pentacene organic thin film transistor circuits fabricated directly onto elastic silicone membranes. Graz, Ingrid M.; Lacour, Stéphanie P. // Applied Physics Letters;12/14/2009, Vol. 95 Issue 24, p243305 

    We have fabricated flexible pentacene thin film transistors (OTFTs) and active load inverter circuits directly onto polydimethylsiloxane (PDMS) membranes. Gold electrodes, parylene C gate dielectric, and pentacene films are deposited using a room temperature and all-vapor phase process on...

  • Crystallization mechanism and piezoelectric properties of solution-derived ferroelectric poly(vinylidene fluoride) thin films. Xujiang He; Kui Yao // Applied Physics Letters;9/11/2006, Vol. 89 Issue 11, p112909 

    β-phase dominant poly(vinylidene fluoride) (PVDF) ferroelectric thin films were obtained on silicon substrates by spin coating the precursor solutions with addition of hydrate salt and drying at an elevated temperature. The remnant polarization of the dense β-phase dominant PVDF thin film...

  • Optical properties of pentacene and perfluoropentacene thin films. Hinderhofer, Alexander; Heinemeyer, Ute; Gerlach, Alexander; Kowarik, Stefan; Jacobs, Robert M. J.; Sakamoto, Youichi; Suzuki, Toshiyasu; Schreiber, Frank // Journal of Chemical Physics;11/21/2007, Vol. 127 Issue 19, p194303 

    The optical properties of pentacene (PEN) and perfluoropentacene (PFP) thin films on various SiO2 substrates were studied using variable angle spectroscopic ellipsometry. Structural characterization was performed using x-ray reflectivity and atomic force microscopy. A uniaxial model with the...

  • Electrodeposition of bismuth thin films on n-GaAs (110). Vereecken, Philippe M.; Rodbell, Kenneth; Ji, Chunxin; Searson, Peter C. // Applied Physics Letters;3/21/2005, Vol. 86 Issue 12, p121916 

    Bismuth thin films are formed electrochemically on n-GaAs (110). Bismuth films up to a few hundred nanometers in thickness exhibit a strong (018) texture, while thicker films are polycrystalline. The barrier height of the n-GaAs/Bi Schottky contacts is 0.62 eV, about 0.2 eV lower than for...

  • Enhanced ferroelectric photovoltaic response of BiFeO3/BaTiO3 multilayered structure. Sharma, Savita; Tomar, Monika; Kumar, Ashok; Puri, Nitin K.; Gupta, Vinay // Journal of Applied Physics;8/21/2015, Vol. 118 Issue 7, p074103-1 

    The present work is based on the photovoltaic properties of multilayered structure of Bismuth ferrite (BFO) and Barium titanate (BTO) thin films prepared by pulsed laser deposition technique on platinum coated silicon substrate. The multilayered structure possesses enhanced ferroelectric...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics