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Title: Visualization of molecular packing and tilting domains and interface effects in tetracene thin films on H/Si(001)

Journal Article · · Physica Status Solidi B. Basic Solid State Physics
 [1];  [2];  [1]
  1. Univ. of Guelph, ON (Canada). Guelph-Waterloo Physics Inst., Dept. of Physics
  2. Brookhaven National Lab. (BNL), Upton, NY (United States). Center for Functional Nanomaterials (CFN)

Visualizing molecular crystalline domains and influence of substrate defects are important in understanding the charge transport in organic thin film devices. Vacuum evaporated tetracene films of four monolayers on hydrogen-terminated Si(001)-2x1 substrate, as a prototypical system, have been studied with ex situ atomic force microscopy (AFM), transverse shear microscopy (TSM), friction force microscopy (FFM), and low-energy electron microscopy (LEEM). Two differently oriented in-plane lattice domains are found due to the symmetry of the substrate lattice, with no visible azimuthal twist between adjacent molecular layers in surface islands, indicating significant bulk-like crystallization in the film. Meanwhile, two types of subdomains are observed inside of each in-plane lattice domain. The subdomains are anisotropic in shape, and their sizes and distribution are highly influenced by the substrate atomic steps. TSM and FFM measurements indicate that these subdomains result from molecule-tilt orderings within the bulk-like lattice domains. Lastly, TSM evidently shows a sensitivity to probe vertical molecule-tilt anisotropy for the molecular crystals, in addition to its known ability to map the lateral lattice orientations.

Research Organization:
Brookhaven National Lab. (BNL), Upton, NY (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
SC0012704
OSTI ID:
1349595
Report Number(s):
BNL-113745-2017-JA; R&D Project: 16083/16083; KC0403020
Journal Information:
Physica Status Solidi B. Basic Solid State Physics, Vol. 254, Issue 7; ISSN 0370-1972
Publisher:
Wiley-BlackwellCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 2 works
Citation information provided by
Web of Science

References (37)

Dynamic Scaling, Island Size Distribution, and Morphology in the Aggregation Regime of Submonolayer Pentacene Films journal September 2003
Pentacene Thin Film Growth journal November 2004
The path to ubiquitous and low-cost organic electronic appliances on plastic journal April 2004
Characterization of Step-Edge Barriers in Organic Thin-Film Growth journal July 2008
A bright future for organic field-effect transistors journal August 2006
Friction Anisotropy and Asymmetry of a Compliant Monolayer Induced by a Small Molecular Tilt journal April 1998
Light-Emitting Field-Effect Transistor Based on a Tetracene Thin Film journal October 2003
Single-Nucleus Polycrystallization in Thin Film Epitaxial Growth journal January 2007
Layered Distribution of Charge Carriers in Organic Thin Film Transistors journal June 2010
Electrochemical annealing and friction anisotropy of domains in epitaxial molecular films journal September 1996
Nucleation and growth of tetracene films on silicon oxide journal September 2008
Epitaxy and Molecular Organization on Solid Substrates journal February 2001
Structural Complexities in the Active Layers of Organic Electronics journal June 2010
Organic single crystals: Addressing the fundamentals of organic electronics journal January 2013
Thin-film transistors based on well-ordered thermally evaporated naphthacene films journal April 2002
Accumulation and Depletion Layer Thicknesses in Organic Field Effect Transistors journal December 2003
Structural and Electrostatic Complexity at a Pentacene/Insulator Interface journal May 2006
Spatially Correlated Charge Transport in Organic Thin Film Transistors journal March 2004
In situ electrical characterization of DH4T field-effect transistors journal November 2004
Friction Anisotropy of the Surface of Organic Crystals and Its Impact on Scanning Force Microscopy journal October 2010
Nucleation of organic semiconductors on inert substrates journal November 2003
Thickness-dependent mobility in tetracene thin-film field-effect-transistors
  • Shi, Jun; Jiang, De-Tong; Dutcher, John R.
  • Journal of Vacuum Science & Technology B, Nanotechnology and Microelectronics: Materials, Processing, Measurement, and Phenomena, Vol. 33, Issue 5 https://doi.org/10.1116/1.4931034
journal September 2015
Growth dynamics of pentacene thin films journal August 2001
Homoepitaxial growth modes in textured, polycrystalline ultrathin pentacene films on dielectrics: Homoepitaxial growth modes in textured pentacene films on dielectrics journal March 2015
Reciprocal-space mapping of lateral single-crystal domains with grazing-incidence x-ray diffraction for tetracene on H/Si(001) journal July 2011
Organic Transistors: Two-Dimensional Transport and Improved Electrical Characteristics journal April 1995
Scratching the Surface:  Fundamental Investigations of Tribology with Atomic Force Microscopy journal June 1997
Surface energetics and growth of pentacene journal September 2002
Organic molecular beam deposition: Growth studies beyond the first monolayer journal May 2004
Flux dependence of the morphology of a tetracene film on hydrogen-passivated Si(100) journal March 2006
Evidence of pairing and its role in the recombinative desorption of hydrogen from the Si(100)-2×1 surface journal September 1991
Thickness Dependence of Mobility in Pentacene Thin-Film Transistors journal July 2005
Grain Orientation Mapping of Polycrystalline Organic Semiconductor Films by Transverse Shear Microscopy journal November 2008
Structure of tetracene films on hydrogen-passivated Si(001) studied via STM, AFM, and NEXAFS journal November 2006
The crystal structure of hexacene, and a revision of the crystallographic data for tetracene journal March 1962
Scanning tunneling microscopy of the phase transition between H/Si(100)-(2×1) and H/Si(100)-(3×1) journal April 1996
Organic Thin Film Transistors for Large Area Electronics journal January 2002

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