Improving Bias-Stress Stability of p-Type Organic Field-Effect Transistors by Constructing an Electron Injection Barrier at the Drain Electrode/Semiconductor Interfaces

2020 ◽  
Vol 12 (37) ◽  
pp. 41886-41895
Author(s):  
Zhenxin Yang ◽  
Chunhua Guo ◽  
Changsheng Shi ◽  
Deng-Ke Wang ◽  
Tao Zhang ◽  
...  
2011 ◽  
Vol 15 (09n10) ◽  
pp. 964-972
Author(s):  
Ronghua Guo ◽  
Lijuan Zhang ◽  
Yuexing Zhang ◽  
Yongzhong Bian ◽  
Jianzhuang Jiang

Density functional theory (DFT) calculations were carried out to investigate the semiconductor performance of a series of phthalocyaninato zinc complexes, namely Zn[Pc(β-OCH3)8] (1), ZnPc (2), and Zn[Pc(β-COOCH3)8] (3) {[ Pc(β-OCH3)8]2- = dianion of 2,3,9,10,16,17,23,24-octamethoxyphthalocyanine; Pc2- = dianion of phthalocyanine; [ Pc(β-COOCH3)8]2- = dianion of 2,3,9,10,16,17,23,24-octamethoxycarbonylphthalocyanine} for organic field effect transistor (OFET). The effect of peripheral substituents on tuning the nature of phthalocyaninato zinc semiconductor has been clearly revealed. Introduction of eight weak electron-donating methoxy groups onto the peripheral positions of ZnPc (2) leads to a decrease in the hole injection barrier relative to Au electrode and an increase in the electron injection barrier, making compound 1 a better p-type semiconductor material in comparison with 2. In contrast, peripheral methoxycarbonyl substitution depresses the energy level of LUMO and thus induces an increase for the electron affinity (EA) value of ZnPc (2), resulting in the change of semiconductor nature from p-type for ZnPc (2) to n-type for Zn[Pc(β-COOCH3)8] (3) due to the improved electron injection ability. The calculated charge transfer mobility for hole is 1.05 cm2.V-1.s-1 for 1 and 5.33 cm2.V-1.s-1 for 2, while that for electron is 0.16 cm2.V-1.s-1 for 3. The present work should be helpful for designing and preparing novel phthalocyanine semiconductors in particular with good n-type OFET performance.


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...


2013 ◽  
Vol 102 (11) ◽  
pp. 113306 ◽  
Author(s):  
H. Sinno ◽  
S. Fabiano ◽  
X. Crispin ◽  
M. Berggren ◽  
I. Engquist

2014 ◽  
Vol 47 (35) ◽  
pp. 355101 ◽  
Author(s):  
Amit Kumar ◽  
Akshaya K Palai ◽  
Dongmyung Yang ◽  
Sungwoo Cho ◽  
Seung-un Park ◽  
...  

2012 ◽  
Vol 100 (1) ◽  
pp. 013303 ◽  
Author(s):  
Peter Darmawan ◽  
Takeo Minari ◽  
Akichika Kumatani ◽  
Yun Li ◽  
Chuan Liu ◽  
...  

2017 ◽  
Vol 9 (39) ◽  
pp. 34153-34161 ◽  
Author(s):  
Hyun Ho Choi ◽  
Hikmet Najafov ◽  
Nikolai Kharlamov ◽  
Denis V. Kuznetsov ◽  
Sergei I. Didenko ◽  
...  

2011 ◽  
Vol 13 (32) ◽  
pp. 14387 ◽  
Author(s):  
Florian Colléaux ◽  
James M. Ball ◽  
Paul H. Wöbkenberg ◽  
Peter J. Hotchkiss ◽  
Seth R. Marder ◽  
...  

2006 ◽  
Vol 421 (4-6) ◽  
pp. 395-398 ◽  
Author(s):  
Tomohiro Taguchi ◽  
Hiroshi Wada ◽  
Takuya Kambayashi ◽  
Bunpei Noda ◽  
Masanao Goto ◽  
...  

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