scholarly journals Developing and Comparing 2,6-Anthracene Derivatives: Optical, Electrochemical, Thermal, and Their Use in Organic Thin Film Transistors

Materials ◽  
2020 ◽  
Vol 13 (8) ◽  
pp. 1961
Author(s):  
Mikhail Y. Vorona ◽  
Nathan J. Yutronkie ◽  
Owen A. Melville ◽  
Andrew J. Daszczynski ◽  
Jeffrey S. Ovens ◽  
...  

Anthracene-based semiconductors have attracted great interest due to their molecular planarity, ambient and thermal stability, tunable frontier molecular orbitals and strong intermolecular interactions that can lead to good device field-effect transistor performance. In this study, we report the synthesis of six anthracene derivatives which were di-substituted at the 2,6-positions, their optical, electrochemical and thermal properties, and their single crystal structures. It was found that 2,6-functionalization with various fluorinated phenyl derivatives led to negligible changes in the optical behaviour while influencing the electrochemical properties. Furthermore, the choice of fluorinated phenyl moiety had noticeable effects on melting point and thermal stability (ΔTm < 55 °C and ΔTd < 65 °C). Bottom-gate top-contact (BGTC) organic thin transistors (OTFTs) were fabricated and characterized using the 2,6-anthracene derivatives as the semiconducting layer. The addition of fluorine groups on the phenyl groups led to a transition from p-type behaviour to n-type behaviour in BGBC OTFTs.

2021 ◽  
Author(s):  
Suman Yadav ◽  
Shivani Sharma ◽  
Satinder K Sharma ◽  
Chullikkattil P. Pradeep

Solution-processable organic semiconductors capable of functioning at low operating voltages (~5 V) are in demand for organic field-effect transistor (OFET) applications. Exploration of new classes of compounds as organic thin-film...


CrystEngComm ◽  
2021 ◽  
Author(s):  
Tommaso Salzillo ◽  
Francesco D'Amico ◽  
Nieves Montes ◽  
Raphael Pfattner ◽  
Marta Mas-Torrent

The presented work concerns the study of solution sheared organic thin film transistors based on a 2,8-difluoro-5,11-bis(triethylsilylethynyl)anthradithiophene (diF-TES-ADT) polymer blend.


RSC Advances ◽  
2020 ◽  
Vol 10 (4) ◽  
pp. 1910-1916 ◽  
Author(s):  
Hyunah Kwon ◽  
Hocheon Yoo ◽  
Masahiro Nakano ◽  
Kazuo Takimiya ◽  
Jae-Joon Kim ◽  
...  

Ambipolar organic field effect transistor shows a great potential to be used for multi-gas sensing device utilizing gate-tunable gas sensing behaviors.


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.


1995 ◽  
Vol 31 (8) ◽  
pp. 680 ◽  
Author(s):  
M. Arafa ◽  
K. Ismail ◽  
P. Fay ◽  
J.O. Chu ◽  
B.S. Meyerson ◽  
...  

Author(s):  
Kuo-Tong Lin ◽  
Chia-Hsun Chen ◽  
Ming-Huan Yang ◽  
Yuh-Zheng Lee ◽  
Kevin Cheng

Sensors ◽  
2021 ◽  
Vol 21 (22) ◽  
pp. 7491
Author(s):  
Abbas Panahi ◽  
Deniz Sadighbayan ◽  
Ebrahim Ghafar-Zadeh

This paper presents a new field-effect sensor called open-gate junction gate field-effect transistor (OG-JFET) for biosensing applications. The OG-JFET consists of a p-type channel on top of an n-type layer in which the p-type serves as the sensing conductive layer between two ohmic contacted sources and drain electrodes. The structure is novel as it is based on a junction field-effect transistor with a subtle difference in that the top gate (n-type contact) has been removed to open the space for introducing the biomaterial and solution. The channel can be controlled through a back gate, enabling the sensor’s operation without a bulky electrode inside the solution. In this research, in order to demonstrate the sensor’s functionality for chemical and biosensing, we tested OG-JFET with varying pH solutions, cell adhesion (human oral neutrophils), human exhalation, and DNA molecules. Moreover, the sensor was simulated with COMSOL Multiphysics to gain insight into the sensor operation and its ion-sensitive capability. The complete simulation procedures and the physics of pH modeling is presented here, being numerically solved in COMSOL Multiphysics software. The outcome of the current study puts forward OG-JFET as a new platform for biosensing applications.


Nanoscale ◽  
2018 ◽  
Vol 10 (8) ◽  
pp. 3613-3620 ◽  
Author(s):  
Nan Cui ◽  
Hang Ren ◽  
Qingxin Tang ◽  
Xiaoli Zhao ◽  
Yanhong Tong ◽  
...  

A fully transparent conformal organic thin-film field-effect transistor array is obtained based on an ultrathin embedded metal-grid electrode and a solution-processed C8-BTBT film.


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