Chemical potential shift in organic field-effect transistors identified by soft X-ray operando nano-spectroscopy

2015 ◽  
Vol 106 (25) ◽  
pp. 251604 ◽  
Author(s):  
Naoka Nagamura ◽  
Yuta Kitada ◽  
Junto Tsurumi ◽  
Hiroyuki Matsui ◽  
Koji Horiba ◽  
...  
Keyword(s):  
Field Effect ◽  
Chemical Potential ◽  
Field Effect Transistors ◽  
Organic Field Effect Transistors ◽  
Potential Shift ◽  
X Ray

scholarly journals A Quinacridone-Diphenylquinoxaline-Based Copolymer for Organic Field-Effect Transistors

Polymers ◽  
2019 ◽  
Vol 11 (3) ◽  
pp. 563 ◽  
Author(s):  
Yong Jeong ◽  
Jeong Oh ◽  
Ho Song ◽  
Tae An
Keyword(s):  
Field Effect ◽  
Field Effect Transistors ◽  
Coupling Reaction ◽  
Hole Mobility ◽  
Organic Field Effect Transistors ◽  
Field Effect Mobility ◽  
X Ray Diffraction ◽  
Suzuki Coupling Reaction ◽  
X Ray ◽  
Heat Treated

In this work, we characterized poly(quinacridone-diphenylquinoxaline) (PQCTQx). PQCTQx was synthesized by a Suzuki coupling reaction and the synthesized PQCTQx was used as a polymeric semiconducting material in organic field-effect transistors (OFETs) to research the potential of using quinacridone derivatives. The measured field-effect mobility of the pristine PQCTQx film was 6.1 × 10−3 cm2/(V·s). A PQCTQx film heat-treated at 150 °C exhibited good field-effect performances with a hole mobility of 1.2 × 10−2 cm2/(V·s). The improved OFET behaviors resulting from the mild thermal treatment was attributed to improved packing of the molecules in the film, as determined using X-ray diffraction, and to decreased channel resistance.

scholarly journals 5,7,12,14-Tetraphenyl-Substituted 6,13-Diazapentacenes as Versatile Organic Semiconductors: Characterization in Field Effect Transistors

2020 ◽  
Vol 02 (03) ◽  
pp. 204-213
Author(s):  
Miriam Hauschild ◽  
Michal Borkowski ◽  
Pavlo O. Dral ◽  
Tomasz Marszalek ◽  
Frank Hampel ◽  
...  
Keyword(s):  
Organic Semiconductors ◽  
Field Effect ◽  
Field Effect Transistors ◽  
Organic Field Effect Transistors ◽  
X Ray ◽  
X Ray Crystallography ◽  
Vis Spectroscopy ◽  
Theoretical Investigations ◽  
Solid State Structures ◽  
Semiconductor Properties

We report the synthesis of 5,7,12,14-tetraphenyl-substituted 6,13-dihydro-6,13-diazapentacene and its fully aromatic 6,13-diazapentacene congener. Both arylated diazapentacenes were characterized by X-ray crystallography to investigate their solid-state structures and by UV–vis spectroscopy and cyclic voltammetry to unveil their electronic properties. The experimental results are complemented with theoretical investigations. The semiconductor properties of both diazapentacene derivatives were assessed in organic field-effect transistors, whereby the fully aromatized compound showed comparably less abundant n-type behavior.

scholarly journals Modeling of Grazing-Incidence X-ray Diffraction from Naphthyl End-Capped Oligothiophenes in Organic Field-Effect Transistors

2020 ◽  
Vol 20 (6) ◽  
pp. 3968-3978
Author(s):  
Michael J. Winokur ◽  
Mathias K. Huss-Hansen ◽  
Andreas E. Lauritzen ◽  
Mika Torkkeli ◽  
Jakob Kjelstrup-Hansen ◽  
...  
Keyword(s):  
Field Effect ◽  
Field Effect Transistors ◽  
Grazing Incidence ◽  
Organic Field Effect Transistors ◽  
X Ray Diffraction ◽  
X Ray

Organic Field-Effect Transistors Based on 3’-Flouro-2,2',6,6'-Tetraphenyl-4,4'-Dipyranylidene

2019 ◽  
Vol 288 ◽  
pp. 37-43
Author(s):  
Altan Bolag ◽  
Yoshiro Yamashita
Keyword(s):  
Field Effect ◽  
Density Functional ◽  
Field Effect Transistors ◽  
Organic Field Effect Transistors ◽  
X Ray Diffraction ◽  
Si Substrate ◽  
Visible Spectroscopy ◽  
Functional Theory ◽  
X Ray ◽  
Contact Configuration

In this work, 3’-flouro-2,2',6,6'-tetraphenyl-4,4'-dipyranylidene (3FDP) was originally synthesized and investigated with density functional theory (DFT) calculations, ultraviolet–visible spectroscopy (UV–Vis) and cyclic voltammetry (CV) in comparison with 2,2',6,6'-tetraphenyl-4,4'-dipyranylidene (DP) and 4’-flouro-2,2',6,6'-tetraphenyl-4,4'-dipyranylidene (4FDP). 3FDP-based organic field-effect transistors (OFETs) were fabricated with bottom contact configuration on bare SiO2/Si substrate, 1,1,1,3,3,3-hexamethyldisilazane (HMDS) and octadecyltrichlorosilane (OTS) treated substrate, respectively. The HMDS-treated device showed highest mobility of 4 × 10−4 cm2 V−1 s−1, on/off ratio of 4 × 103 and threshold voltage of −10 V. Finally, vacuum deposited 3FDP films morphology was investigated by X-ray diffraction (XRD) analyses and the results showed higher crystallinity of HMDS-treated 3FDP film compared to the OTS-treated film, leading to a better FET performance.

scholarly journals Effect of contact resistance in organic field‐effect transistors

Nano Select ◽  
2021 ◽  
Author(s):  
Yanjun Shi ◽  
Jie Liu ◽  
Yuanyuan Hu ◽  
Wenping Hu ◽  
Lang Jiang
Keyword(s):  
Contact Resistance ◽  
Field Effect ◽  
Field Effect Transistors ◽  
Organic Field Effect Transistors

Isomeric Dibenzoheptazethrenes for Air‐stable Organic Field‐effect Transistors

2021 ◽  
Author(s):  
Chaoyang Zong ◽  
Xiaoting Zhu ◽  
Zhanqiang Xu ◽  
Lifeng Zhang ◽  
Jun Xu ◽  
...  
Keyword(s):  
Field Effect ◽  
Field Effect Transistors ◽  
Organic Field Effect Transistors
Sign in / Sign up

Export Citation Format

Share Document