scholarly journals Modification of Indacenodithiophene-Based Polymers and Its Impact on Charge Carrier Mobility in Organic Thin-Film Transistors

2019 ◽  
Vol 142 (2) ◽  
pp. 652-664 ◽  
Author(s):  
Andrew Wadsworth ◽  
Hu Chen ◽  
Karl J. Thorley ◽  
Camila Cendra ◽  
Mark Nikolka ◽  
...  
Keyword(s):  
Thin Film ◽  
Charge Carrier ◽  
Thin Film Transistors ◽  
Carrier Mobility ◽  
Charge Carrier Mobility ◽  
Organic Thin Film Transistors ◽  
Organic Thin Film

Effect of dielectric/organic interface properties on the performance of the organic thin film transistors

2013 ◽  
Vol 1501 ◽  
Author(s):  
Ronak Rahimi ◽  
D. Korakakis
Keyword(s):  
Molecular Structure ◽  
Thin Film ◽  
Thin Film Transistors ◽  
Carrier Mobility ◽  
Charge Carrier Mobility ◽  
Organic Thin Film Transistors ◽  
Device Performance ◽  
Electrical Characteristics ◽  
Organic Thin Film ◽  
Organic Layers

ABSTRACTIn order to manufacture organic electronic devices with high performance, more detailed studies of the structure and the morphology of the organic materials as well as the underlying physical charge transport mechanisms are warranted. For instance, high efficiency organic thin film transistors (OTFTs) require materials with high charge carrier mobility [1, 2]. The parameters that determine the charge carrier mobility of the device include the structure of the first organic layer at the organic-dielectric interface as well as the morphology and the structural order of the other organic layers. Therefore, fundamental questions about structural properties of organic materials should be answered in order to optimize device performance [2-4].In this work, several bilayer structures of LiF/PTCDI-C8 and LiF/pentacene were prepared and their morphology and molecular structure were characterized using X-ray reflectivity (XRR) technique. In order to study the effects of the films’ structures and dielectric/organic interfacial properties on the device performance, OTFTs based on these bilayers were fabricated and characterized. It has been observed that PTCDI-C8 thin films have higher molecular packing in the LiF/PTCDI-C8 bilayer structure, which results in superior electrical characteristics for OTFTs based on this organic material. Devices with LiF/PTCDI-C8 bilayer exhibit about one order of magnitude higher output current (Ids) at a constant drain-source voltage (Vds) compared to the devices with LiF/pentacene bilayer. The observed differences in the electrical characteristics of these devices can be attributed to the effects of the dielectric/organic interface and the molecular structure of the organic layers.

Photochemical control of the carrier mobility in pentacene-based organic thin-film transistors

2010 ◽  
Vol 96 (21) ◽  
pp. 213303 ◽  
Author(s):  
Marco Marchl ◽  
Andrej W. Golubkov ◽  
Matthias Edler ◽  
Thomas Griesser ◽  
Peter Pacher ◽  
...  
Keyword(s):  
Thin Film ◽  
Thin Film Transistors ◽  
Carrier Mobility ◽  
Organic Thin Film Transistors ◽  
Organic Thin Film

Overestimation of Carrier Mobility in Organic Thin Film Transistors Due to Unaccounted Fringe Currents

2019 ◽  
Vol 1 (3) ◽  
pp. 379-388 ◽  
Author(s):  
Ke Pei ◽  
Ming Chen ◽  
Zhiwen Zhou ◽  
Hanying Li ◽  
Paddy Kwok Leung Chan
Keyword(s):  
Thin Film ◽  
Thin Film Transistors ◽  
Carrier Mobility ◽  
Organic Thin Film Transistors ◽  
Organic Thin Film

scholarly journals Percolation of Carbon Nanoparticles in Poly(3-Hexylthiophene) Enhancing Carrier Mobility in Organic Thin Film Transistors

2014 ◽  
Vol 2014 ◽  
pp. 1-10 ◽  
Author(s):  
Chang-Hung Lee ◽  
Chun-Hao Hsu ◽  
Iu-Ren Chen ◽  
Wen-Jong Wu ◽  
Chih-Ting Lin
Keyword(s):  
Thin Film ◽  
Thin Film Transistors ◽  
Carbon Nanoparticles ◽  
Carrier Mobility ◽  
Organic Thin Film Transistors ◽  
Organic Thin Film ◽  
Photoluminescence Spectra ◽  
X Ray Diffraction ◽  
X Ray ◽  
Printing System

To improve the field-effect mobility of all-inkjet-printed organic thin film transistors (OTFTs), a composite material consisted of carbon nanoparticles (CNPs) and poly(3-hexylthiophene) (P3HT) was reported by using homemade inkjet-printing system. These all-inkjet-printed composite OTFTs represented superior characteristics compared to the all-inkjet-printed pristine P3HT OTFTs. To investigate the enhancement mechanism of the blended materials, the percolation model was established and experimentally verified to illustrate the enhancement of the electrical properties with different blending concentrations. In addition, experimental results of OTFT contact resistances showed that both contact resistance and channel resistance were halved. At the same time, X-ray diffraction measurements, Fourier transform infrared spectra, ultraviolet-visible light, and photoluminescence spectra were also accomplished to clarify the material blending effects. Therefore, this study demonstrates the potential and guideline of carbon-based nanocomposite materials in all-inkjet-printed organic electronics.

A novel polymer as a functional dielectric layer for OTFTs to improve the grain size of the pentacene semiconductor

2016 ◽  
Vol 7 (11) ◽  
pp. 2143-2150 ◽  
Author(s):  
Yao Li ◽  
He Wang ◽  
Xuesong Wang ◽  
Zuosen Shi ◽  
Donghang Yan ◽  
...  
Keyword(s):  
Thin Film ◽  
Grain Size ◽  
Charge Carrier ◽  
Dielectric Layer ◽  
Thin Film Transistors ◽  
Carrier Mobility ◽  
Charge Carrier Mobility ◽  
Single Variable ◽  
Dielectric Layers ◽  
The Relationship

A series of novel polymers as functional dielectric layers for pentacene thin-film transistors was synthesized and investigated to explore the relationship between the grain size and the charge carrier mobility with a single variable.

Printing technique dependent charge carrier velocity distribution in organic thin film transistors

2013 ◽  
Author(s):  
Simone Ganz ◽  
Sebastian Pankalla ◽  
Hans Martin Sauer ◽  
Manfred Glesner ◽  
Edgar Dörsam
Keyword(s):  
Thin Film ◽  
Charge Carrier ◽  
Velocity Distribution ◽  
Thin Film Transistors ◽  
Organic Thin Film Transistors ◽  
Organic Thin Film ◽  
Printing Technique ◽  
Carrier Velocity
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