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Title: Electric Field Tuning Molecular Packing and Electrical Properties of Solution-Shearing Coated Organic Semiconducting Thin Films

Journal Article · · Advanced Functional Materials
 [1];  [2];  [3];  [1];  [2];  [1]
  1. Stanford Univ., Stanford, CA (United States)
  2. SLAC National Accelerator Lab., Menlo Park, CA (United States)
  3. Stanford Univ., Stanford, CA (United States); SLAC National Accelerator Lab., Menlo Park, CA (United States)
+ Show Author Affiliations

Recent improvements in solution-coated organic semiconductors (OSCs) evidence their high potential for cost-efficient organic electronics and sensors. Molecular packing structure determines the charge transport property of molecular solids. However, it remains challenging to control the molecular packing structure for a given OSC. Here, the application of alternating electric fields is reported to fine-tune the crystal packing of OSC solution-shearing coated at ambient conditions. First, a theoretical model based on dielectrophoresis is developed to guide the selection of the optimal conditions (frequency and amplitude) of the electric field applied through the solution-shearing blade during coating of OSC thin films. Next, electric field-induced polymorphism is demonstrated for OSCs with both herringbone and 2D brick-wall packing motifs in 2,7-dioctyl[1]benzothieno[3,2-b][1]benzothiophene and 6,13-bis(triisopropylsilylethynyl) pentacene, respectively. Favorable molecular packing can be accessible in some cases, resulting in higher charge carrier mobilities. In conclusion, this work provides a new approach to tune the properties of solution-coated OSCs in functional devices for high-performance printed electronics.

Research Organization:
SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
P2ELP2_155355; SC0016523; FOA-0000654-1588; 1434799; AC02-76SF00515; DE‐SC0016523; DE‐FOA‐0000654‐1588
OSTI ID:
1353187
Alternate ID(s):
OSTI ID: 1401739
Journal Information:
Advanced Functional Materials, Vol. 27, Issue 8; ISSN 1616-301X
Publisher:
WileyCopyright Statement
Country of Publication:
United States
Language:
English

References (46)

Dynamic character of charge transport parameters in disordered organic semiconductor field-effect transistors journal January 2012
Patterning organic single-crystal transistor arrays journal December 2006
Mobility overestimation due to gated contacts in organic field-effect transistors journal March 2016
Large-Scale Assembly of Single Nanowires through Capillary-Assisted Dielectrophoresis journal November 2014
Conducting AFM and 2D GIXD Studies on Pentacene Thin Films journal August 2005
Electric-Field-Assisted Alignment of Supramolecular Fibers journal May 2006
Inkjet printing of single-crystal films journal July 2011
Nanoscopic Templates from Oriented Block Copolymer Films journal June 2000
Microstructure transformations induced by modified-layers on pentacene polymorphic films and their effect on performance of organic thin-film transistor journal November 2009
Crystallisation kinetics in thin films of dihexyl-terthiophene: the appearance of polymorphic phases journal January 2012
Electric Field-Assisted Alignment of Self-Assembled Fibers Composed of Hydrogen-Bonded Molecules Having Laterally Fluorinated Mesogens journal May 2009
Current versus gate voltage hysteresis in organic field effect transistors journal April 2009
Tuning the Crystal Polymorphs of Alkyl Thienoacene via Solution Self-Assembly Toward Air-Stable and High-Performance Organic Field-Effect Transistors journal December 2014
Dibenzothiopheno[6,5- b :6′,5′- f ]thieno[3,2- b ]thiophene (DBTTT): High-Performance Small-Molecule Organic Semiconductor for Field-Effect Transistors journal April 2015
Droplet Manipulation by an External Electric Field for Crystalline Film Growth journal July 2013
Review Article—Dielectrophoresis: Status of the theory, technology, and applications journal June 2010
Precise Structure of Pentacene Monolayers on Amorphous Silicon Oxide and Relation to Charge Transport journal June 2009
From Convective Assembly to Landau−Levich Deposition of Multilayered Phospholipid Films of Controlled Thickness journal March 2009
Molecular Ordering of High-Performance Soluble Molecular Semiconductors and Re-evaluation of Their Field-Effect Transistor Characteristics journal July 2008
Thermally Induced Solid-State Phase Transition of Bis(triisopropylsilylethynyl) Pentacene Crystals journal August 2006
A Zone-Casting Technique for Device Fabrication of Field-Effect Transistors Based on Discotic Hexa-peri-hexabenzocoronene journal January 2005
Understanding Polymorphism in Organic Semiconductor Thin Films through Nanoconfinement journal November 2014
Electric field induced instabilities at liquid/liquid interfaces journal February 2001
On the Extraction of Charge Carrier Mobility in High-Mobility Organic Transistors journal November 2015
Alignment of photoconductive self-assembled fibers composed of π-conjugated molecules under electric fields journal January 2010
Simulating X-ray diffraction of textured films journal March 2008
Electric field-assisted self-organization of polymer:fullerene hybrids on the photovoltaic performance journal January 2011
Electric-field-induced orientation control of organic semiconductor rubrene crystals journal January 2013
Controlling Polymorphic Transformations of Pentacene Crystal through Solvent Treatments: An Experimental and Theoretical Study journal October 2010
Field-Force Alignment of Disc-Type π Systems journal March 2007
Controlled Deposition of Highly Ordered Soluble Acene Thin Films: Effect of Morphology and Crystal Orientation on Transistor Performance journal September 2009
Crystallization of proteins under an external electric field journal April 1999
The Role of OTS Density on Pentacene and C 60 Nucleation, Thin Film Growth, and Transistor Performance journal June 2009
Tuning charge transport in solution-sheared organic semiconductors using lattice strain journal December 2011
High-Performance Transistors and Complementary Inverters Based on Solution-Grown Aligned Organic Single-Crystals journal March 2012
Interfacial Energy Effects on the Electric Field Alignment of Symmetric Diblock Copolymers journal August 2003
Hierarchical structure formation and pattern replication induced by an electric field journal December 2002
Electric-Field-Assisted Position and Orientation Control of Organic Single Crystals journal November 2014
Tunable Crystal Nanostructures of Pentacene Thin Films on Gate Dielectrics Possessing Surface-Order Control journal April 2008
Thickness-Dependent Structural Evolutions and Growth Models in Relation to Carrier Transport Properties in Polycrystalline Pentacene Thin Films journal October 2007
Solution coating of large-area organic semiconductor thin films with aligned single-crystalline domains journal June 2013
One-dimensional self-confinement promotes polymorph selection in large-area organic semiconductor thin films journal April 2014
Self-Aligned Growth of Organic Semiconductor Single Crystals by Electric Field journal January 2016
Integrated Materials Design of Organic Semiconductors for Field-Effect Transistors journal April 2013
Ultra-high mobility transparent organic thin film transistors grown by an off-centre spin-coating method journal January 2014
Ultra-high mobility transparent organic thin film transistors grown by an off-centre spin-coating method text January 2014

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Addition of the Lewis Acid Zn(C 6 F 5 ) 2 Enables Organic Transistors with a Maximum Hole Mobility in Excess of 20 cm 2 V −1 s −1 journal May 2019
High-Mobility, Solution-Processed Organic Field-Effect Transistors from C8-BTBT:Polystyrene Blends journal June 2018
Enhancing Molecular Alignment and Charge Transport of Solution-Sheared Semiconducting Polymer Films by the Electrical-Blade Effect journal May 2018
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The meniscus-guided deposition of semiconducting polymers journal February 2018
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Laser-induced orientation transformation of a conjugated polymer thin film with enhanced vertical charge transport journal January 2018
Role of Polymorphism and Thin-Film Morphology in Organic Semiconductors Processed by Solution Shearing journal February 2018
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