Relationship Between Molecular Structure and Electrical Performance of Oligothiophene Organic Thin Film Transistors

2003 ◽  
Vol 15 (11) ◽  
pp. 917-922 ◽  
Author(s):  
M. Halik ◽  
H. Klauk ◽  
U. Zschieschang ◽  
G. Schmid ◽  
S. Ponomarenko ◽  
...  
2020 ◽  
Vol 91 (3) ◽  
pp. 30201
Author(s):  
Hang Yu ◽  
Jianlin Zhou ◽  
Yuanyuan Hao ◽  
Yao Ni

Organic thin film transistors (OTFTs) based on dioctylbenzothienobenzothiophene (C8BTBT) and copper (Cu) electrodes were fabricated. For improving the electrical performance of the original devices, the different modifications were attempted to insert in three different positions including semiconductor/electrode interface, semiconductor bulk inside and semiconductor/insulator interface. In detail, 4,4′,4′′-tris[3-methylpheny(phenyl)amino] triphenylamine (m-MTDATA) was applied between C8BTBTand Cu electrodes as hole injection layer (HIL). Moreover, the fluorinated copper phthalo-cyanine (F16CuPc) was inserted in C8BTBT/SiO2 interface to form F16CuPc/C8BTBT heterojunction or C8BTBT bulk to form C8BTBT/F16CuPc/C8BTBT sandwich configuration. Our experiment shows that, the sandwich structured OTFTs have a significant performance enhancement when appropriate thickness modification is chosen, comparing with original C8BTBT devices. Then, even the low work function metal Cu was applied, a normal p-type operate-mode C8BTBT-OTFT with mobility as high as 2.56 cm2/Vs has been fabricated.


2019 ◽  
Vol 21 (46) ◽  
pp. 25690-25699 ◽  
Author(s):  
Xiaowu Tang ◽  
Hyeok-jin Kwon ◽  
Heqing Ye ◽  
Jae Young Kim ◽  
Jaewoong Lee ◽  
...  

The addition of hardeners to the PEDOT:PSS composites enhances both electrical and physical properties to satisfy the requirements for electrode usages in organic electronic devices.


2005 ◽  
Vol 86 (4) ◽  
pp. 042105 ◽  
Author(s):  
Dawen Li ◽  
Evert-Jan Borkent ◽  
Robert Nortrup ◽  
Hyunsik Moon ◽  
Howard Katz ◽  
...  

2015 ◽  
Vol 71 (a1) ◽  
pp. s522-s522
Author(s):  
Fabiola Liscio ◽  
Laura Ferlauto ◽  
Micaela Matta ◽  
Rafael Pfattner ◽  
Mauro Murgia ◽  
...  

2013 ◽  
Vol 1501 ◽  
Author(s):  
Ronak Rahimi ◽  
D. Korakakis

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.


2011 ◽  
Vol 257 (22) ◽  
pp. 9386-9389 ◽  
Author(s):  
A.K. Diallo ◽  
F. Fages ◽  
F. Serein-Spirau ◽  
J.-P. Lère-porte ◽  
C. Videlot-Ackermann

2018 ◽  
Vol 124 (10) ◽  
Author(s):  
Loredana Parlato ◽  
Ettore Sarnelli ◽  
Antonio Cassinese ◽  
Federico Chianese ◽  
Fabio Chiarella ◽  
...  

RSC Advances ◽  
2019 ◽  
Vol 9 (37) ◽  
pp. 21478-21485 ◽  
Author(s):  
Nicholas T. Boileau ◽  
Rosemary Cranston ◽  
Brendan Mirka ◽  
Owen A. Melville ◽  
Benoît H. Lessard

A series of metal phthalocyanine based organic thin film transistors were evaluated and their responses to changes in temperature and environmental was determined: the choice of central atom makes a difference.


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