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Title: Oriented Covalent Organic Framework Film on Graphene for Robust Ambipolar Vertical Organic Field-Effect Transistor

Journal Article · · Chemistry of Materials

Periodically eclipsed π-stacking columns in two-dimensional covalent organic frameworks (2D COFs) could function as direct channel paths for charge carrier transport. Incorporating a welldefined 2D COF into organic electronic devices, however, is still a challenge. Herein, we reported the solvothermal synthesis of a COFTFPy-PPDA film on single layer graphene (SLG), which was constructed via covalent imine-type linkage by employing 1,3,6,8-tetrakis(p-formylphenyl)pyrene (TFPy) and p-phenylenediamine (PPDA) as building blocks. A vertical field-effect transistor (VFET) based on the heterostructure of COFTFPy-PPDA film and SLG shows ambipolar charge carrier behavior under lower modulating voltages. Work-function-tunable contact between SLG and COFTFPy-PPDA film and suitable injection barriers of charge carriers lead to the ambipolar transport with high current density on/off ratio (>105) and high on-current density (>4.1 Acm-2). Interfacing 2D COF with graphene for VFET could shed the promising application prospect of 2D COFs in organic electronics and optoelectronics.

Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
AC02-05CH11231
OSTI ID:
1436997
Journal Information:
Chemistry of Materials, Vol. 29, Issue 10; ISSN 0897-4756
Publisher:
American Chemical Society (ACS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 124 works
Citation information provided by
Web of Science

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Cited By (29)

Recent progress in covalent organic framework thin films: fabrications, applications and perspectives journal January 2019
A Review of Vertical Organic Transistors journal January 2020
2D Organic Materials for Optoelectronic Applications journal October 2017
Processing of covalent organic frameworks: an ingredient for a material to succeed journal January 2019
Facile synthesis of novel porous self-assembling hydrogen-bonding covalent organic polymers and their applications towards fluoroquinolone antibiotics adsorption journal January 2018
Recent progress in two-dimensional polymers for energy storage and conversion: design, synthesis, and applications journal January 2018
A Molecular Pillar Approach To Grow Vertical Covalent Organic Framework Nanosheets on Graphene: Hybrid Materials for Energy Storage journal December 2017
Organic Synthesis of Ancient Windmill-Like Window Nanogrid at Molecular Scale: Organic Synthesis of Ancient Windmill-Like Window Nanogrid at Molecular Scale journal November 2018
Recent Advances in Ambipolar Transistors for Functional Applications journal July 2019
Constructing Universal Ionic Sieves via Alignment of Two‐Dimensional Covalent Organic Frameworks (COFs) journal October 2018
Two-dimensional light-emitting materials: preparation, properties and applications journal January 2018
Constructing Universal Ionic Sieves via Alignment of Two‐Dimensional Covalent Organic Frameworks (COFs) journal December 2018
Impregnation of sulfur into a 2D pyrene-based covalent organic framework for high-rate lithium–sulfur batteries journal January 2018
An Elastic Interfacial Transistor Enabled by Superhydrophobicity journal November 2018
Covalent Organic Frameworks: Structures, Synthesis, and Applications journal July 2018
Vertical Organic Field‐Effect Transistors journal February 2019
Photostimulus‐Responsive Large‐Area Two‐Dimensional Covalent Organic Framework Films journal September 2019
Covalent Organic Frameworks: From Materials Design to Biomedical Application journal December 2017
Ultrahigh Responsivity Photodetectors of 2D Covalent Organic Frameworks Integrated on Graphene journal January 2020
Design and synthesis of two-dimensional covalent organic frameworks with four-arm cores: prediction of remarkable ambipolar charge-transport properties journal January 2019
Crystal-controlled polymerization: recent advances in morphology design and control of organic polymer materials journal January 2018
Photostimulus‐Responsive Large‐Area Two‐Dimensional Covalent Organic Framework Films journal November 2019
Bringing Porous Organic and Carbon-Based Materials toward Thin-Film Applications journal August 2018
2D Poly(arylene vinylene) Covalent Organic Frameworks via Aldol Condensation of Trimethyltriazine journal September 2019
A Molecular Pillar Approach To Grow Vertical Covalent Organic Framework Nanosheets on Graphene: Hybrid Materials for Energy Storage journal December 2017
2D Poly(arylene vinylene) Covalent Organic Frameworks via Aldol Condensation of Trimethyltriazine journal August 2019
A Review of Vertical Organic Transistors text January 2020
Recent Advances in Covalent Organic Frameworks for Molecule-Based Two-Dimensional Materials journal December 2019
Edge-driven nanomembrane-based vertical organic transistors showing a multi-sensing capability journal February 2020

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