Systematic Investigation of Isoindigo-Based Polymeric Field-Effect Transistors: Design Strategy and Impact of Polymer Symmetry and Backbone Curvature

2012 ◽  
Vol 24 (10) ◽  
pp. 1762-1770 ◽  
Author(s):  
Ting Lei ◽  
Yue Cao ◽  
Xu Zhou ◽  
Yang Peng ◽  
Jiang Bian ◽  
...  
Nanoscale ◽  
2015 ◽  
Vol 7 (47) ◽  
pp. 19921-19929 ◽  
Author(s):  
Rui Yang ◽  
Arnob Islam ◽  
Philip X.-L. Feng

We describe systematic investigation of electromechanical coupling effects in suspended single-layer MoS2, as suspended-channel field-effect transistors and vibrating-channel nanoelectromechanical resonators.


2019 ◽  
Vol 1 (7) ◽  
pp. 1233-1242
Author(s):  
Rutian Gao ◽  
Peng Yuan ◽  
Xiaonan Zhang ◽  
Shenglong Sang ◽  
Xiao-Chun Hang ◽  
...  

2014 ◽  
Vol 25 (4) ◽  
pp. 586-596 ◽  
Author(s):  
Dohyuk Yoo ◽  
Benjamin Nketia-Yawson ◽  
Seok-Ju Kang ◽  
Hyungju Ahn ◽  
Tae Joo Shin ◽  
...  

MRS Advances ◽  
2016 ◽  
Vol 1 (38) ◽  
pp. 2653-2658
Author(s):  
S. Inoue ◽  
H. Minemawari ◽  
J. Tsutsumi ◽  
T. Hamai ◽  
S. Arai ◽  
...  

ABSTRACTHere we discuss requirements for high performance and solution processable organic semiconductors, by presenting a systematic investigation of 7-alkyl-2-phenyl[1]benzothieno[3,2-b][1]benzothiophenes (Ph-BTBT-Cn’s). We found that the solubility and thermal properties of Ph-BTBT-Cn’s depend systematically on the substituted alkyl-chain length n. The observed features are well understood in terms of the change of molecular packing motif with n: The compounds with n ≤ 4 do not form independent alkyl chain layers, whereas those with n ≥ 5 form isolated alkyl chain layers. The latter compounds afford a series of isomorphous bilayer-type crystal structures that form two-dimensional carrier transport layers within the crystals. We also show that the Ph-BTBT-C10 afford high performance single-crystalline field-effect transistors the mobility of which reaches as high as 15.9 cm2/Vs. These results demonstrate a crucial role of the substituted alkyl chain length for obtaining high performance organic semiconductors and field-effect transistors.


2021 ◽  
Vol 21 (7) ◽  
pp. 3923-3928
Author(s):  
Gyujeong Lee ◽  
Hea-Lim Park ◽  
Sin-Hyung Lee ◽  
Min-Hoi Kim ◽  
Sin-Doo Lee

We investigate the effect of a semiconducting organic buffer layer (SOBL) on the injection and transport of charges in organic field-effect transistors (OFETs). Here, two different injection barriers at the source/organic semiconductor interface are respectively studied with the aid of a numerical simulation: one is intermediate (0.4 eV), and the other is large energy barriers (0.6 eV). The introduction of nanostructure buffer layer, or SOBL, exhibits the decrease of potential loss at the contact interfaces, improving the electrical performance of the OFETs. It is also found that the energy level as well as the mobility of the SOBL plays an important role in determining the injection properties at the metal/organic hetero-interfaces and thus improving the device performance. Our systematic investigation on the injection barrier by the introduction of the nanostructure buffer layer will provide a useful guideline for the fabrication of high-performance FETs with molecular semiconductors.


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