Tuning the Charge-Transport Property of Pyromellitic Diimide-Based Conjugated Polymers towards Efficient Field-Effect Transistors

2014 ◽  
Vol 3 (2) ◽  
pp. 209-215 ◽  
Author(s):  
Xu Zhou ◽  
Yue Cao ◽  
Xiao-Ye Wang ◽  
Zi-Hao Guo ◽  
Jie-Yu Wang ◽  
...  
2021 ◽  
Author(s):  
Ze-Fan Yao ◽  
Jie-Yu Wang ◽  
Jian Pei

The multi-level microstructure of conjugated polymers is the most critical parameter determining the charge transport property in field-effect transistors (FETs). However, controlling the hierarchical microstructures and the structural evolution remains...


2018 ◽  
Vol 5 (3) ◽  
pp. 172025 ◽  
Author(s):  
Inori Ohnishi ◽  
Kazuhito Hashimoto ◽  
Keisuke Tajima

Linear polydimethylsiloxane (PDMS) was investigated as a solubilizing group for π-conjugated polymers with the aim of combining high solubility in organic solvents with the molecular packing in solid films that is advantageous for charge transport. Diketopyrrolopyrrole-based copolymers with different contents and substitution patterns of the PDMS side chains were synthesized and evaluated for application in organic field-effect transistors. The PDMS side chains greatly increased the solubility of the polymers and led to shorter d -spacings of the π-stacking in the thin films compared with polymers containing conventional branched alkyl side chains.


2019 ◽  
Vol 7 (25) ◽  
pp. 7618-7626 ◽  
Author(s):  
Kaiqiang Huang ◽  
Xue Zhao ◽  
Yuchang Du ◽  
Sanghyo Kim ◽  
Xiaohong Wang ◽  
...  

Six donor–acceptor (D–A) conjugated polymers, P1–P6, based on the novel electron acceptors bis-isoindigo (BIID) and bis-azaisoindigo (BAID), were designed and synthesized for solution-processed organic field-effect transistors.


2018 ◽  
Vol 695 ◽  
pp. 51-58 ◽  
Author(s):  
Satej S. Dharmapurikar ◽  
Sundaresan Chithiravel ◽  
Manoj V. Mane ◽  
Gunvant Deshmukh ◽  
Kothandam Krishnamoorthy

2021 ◽  
Vol 13 (7) ◽  
pp. 8631-8642
Author(s):  
Tomoya Taguchi ◽  
Fabio Chiarella ◽  
Mario Barra ◽  
Federico Chianese ◽  
Yoshihiro Kubozono ◽  
...  

2009 ◽  
Vol 47 (5) ◽  
pp. 1381-1392 ◽  
Author(s):  
Kun Lu ◽  
Xiangnan Sun ◽  
Yunqi Liu ◽  
Chongan Di ◽  
Hongxia Xi ◽  
...  

2013 ◽  
Vol 49 (56) ◽  
pp. 6289 ◽  
Author(s):  
Misook Min ◽  
Sohyeon Seo ◽  
Junghyun Lee ◽  
Sae Mi Lee ◽  
Eunhee Hwang ◽  
...  

MRS Advances ◽  
2017 ◽  
Vol 2 (23) ◽  
pp. 1249-1257 ◽  
Author(s):  
F. Michael Sawatzki ◽  
Alrun A. Hauke ◽  
Duy Hai Doan ◽  
Peter Formanek ◽  
Daniel Kasemann ◽  
...  

ABSTRACTTo benefit from the many advantages of organic semiconductors like flexibility, transparency, and small thickness, electronic devices should be entirely made from organic materials. This means, additionally to organic LEDs, organic solar cells, and organic sensors, we need organic transistors to amplify, process, and control signals and electrical power. The standard lateral organic field effect transistor (OFET) does not offer the necessary performance for many of these applications. One promising candidate for solving this problem is the vertical organic field effect transistor (VOFET). In addition to the altered structure of the electrodes, the VOFET has one additional part compared to the OFET – the source-insulator. However, the influence of the used material, the size, and geometry of this insulator on the behavior of the transistor has not yet been examined. We investigate key-parameters of the VOFET with different source insulator materials and geometries. We also present transmission electron microscopy (TEM) images of the edge area. Additionally, we investigate the charge transport in such devices using drift-diffusion simulations and the concept of a vertical organic light emitting transistor (VOLET). The VOLET is a VOFET with an embedded OLED. It allows the tracking of the local current density by measuring the light intensity distribution.We show that the insulator material and thickness only have a small influence on the performance, while there is a strong impact by the insulator geometry – mainly the overlap of the insulator into the channel. By tuning this overlap, on/off-ratios of 9x105 without contact doping are possible.


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