scholarly journals Dynamics of charge carrier trapping in NO2 sensors based on ZnO field-effect transistors

2012 ◽  
Vol 171-172 ◽  
pp. 1172-1179 ◽  
Author(s):  
Anne-Marije Andringa ◽  
Nynke Vlietstra ◽  
Edsger C.P. Smits ◽  
Mark-Jan Spijkman ◽  
Henrique L. Gomes ◽  
...  
Nano Letters ◽  
2015 ◽  
Vol 15 (7) ◽  
pp. 4657-4663 ◽  
Author(s):  
Yingjie Zhang ◽  
Qian Chen ◽  
A. Paul Alivisatos ◽  
Miquel Salmeron

Polymers ◽  
2021 ◽  
Vol 13 (10) ◽  
pp. 1567
Author(s):  
Adam Luczak ◽  
Angélina Ruiz ◽  
Simon Pascal ◽  
Adrian Adamski ◽  
Jarosław Jung ◽  
...  

The interface between the semiconductor and the dielectric layer plays a crucial role in organic field-effect transistors (OFETs) because it is at the interface that charge carriers are accumulated and transported. In this study, four zwitterionic benzoquinonemonoimine dyes featuring alkyl and aryl N-substituents were used to cover the dielectric layers in OFET structures. The best interlayer material, containing aliphatic side groups, increased charge carrier mobility in the measured systems. This improvement can be explained by the reduction in the number of the charge carrier trapping sites at the dielectric active layer interface from 1014 eV−1 cm−2 to 2 × 1013 eV−1 cm−2. The density of the traps was one order of magnitude lower compared to the unmodified transistors. This resulted in an increase in charge carrier mobility in the tested poly [2,5-(2-octyldodecyl)-3,6-diketopyrrolopyrrole-alt-5,5-(2,5-di(thien-2-yl)thieno [3,2-b]thiophene)] (DPPDTT)-based transistors to 5.4 × 10−1 cm2 V−1 s−1.


Author(s):  
Haixi Pan ◽  
Liping Feng ◽  
Xiaodong Zhang ◽  
Yang Chen ◽  
Gangquan Li ◽  
...  

2006 ◽  
Vol 382 (1-2) ◽  
pp. 220-228 ◽  
Author(s):  
K.P. Korona ◽  
A. Wysmolek ◽  
M. Kamińska ◽  
A. Twardowski ◽  
M. Piersa ◽  
...  

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Bishwajeet Singh Bhardwaj ◽  
Takeshi Sugiyama ◽  
Naoko Namba ◽  
Takayuki Umakoshi ◽  
Takafumi Uemura ◽  
...  

Abstract Pentacene, an organic molecule, is a promising material for high-performance field effect transistors due to its high charge carrier mobility in comparison to usual semiconductors. However, the charge carrier mobility is strongly dependent on the molecular orientation of pentacene in the active layer of the device, which is hard to investigate using standard techniques in a real device. Raman scattering, on the other hand, is a high-resolution technique that is sensitive to the molecular orientation. In this work, we investigated the orientation distribution of pentacene molecules in actual transistor devices by polarization-dependent Raman spectroscopy and correlated these results with the performance of the device. This study can be utilized to understand the distribution of molecular orientation of pentacene in various electronic devices and thus would help in further improving their performances.


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