scholarly journals Electric field-dependent charge transport in organic semiconductors

2009 ◽  
Vol 95 (15) ◽  
pp. 153301 ◽  
Author(s):  
Ling Li ◽  
Steven Van Winckel ◽  
Jan Genoe ◽  
Paul Heremans
Keyword(s):  
Electric Field ◽  
Charge Transport ◽  
Organic Semiconductors ◽  
Field Dependent

Research on Charge Transport in One-Dimensional Organic Semiconductors Material

2012 ◽  
Vol 531 ◽  
pp. 231-234 ◽  
Author(s):  
Wen Liu
Keyword(s):  
Electric Field ◽  
Charge Transport ◽  
Organic Semiconductors ◽  
Electric Fields ◽  
One Dimensional ◽  
Organic Semiconductor Materials ◽  
Insulator Metal Transition ◽  
The Family ◽  
High Electric Fields ◽  
Ssh Model

1D conjugated polymers belong to the family of organic semiconductor materials, in which the charge carriers are polarons or bipolarons. Charge transport in 1D organic semiconductors in the presence of high electric fields is studied within the SSH model. It is found that under a sufficiently high electric field, the polaron is dissociated into free-like electron. The electron performs Bloch oscillation (BO) in the organic semiconductors. By enhancing the electric field, BO will be destroyed and electrons can transit from the valence band to the conduction band, which is Zener tunneling in organic semiconductors. The results also indicate a field-induced insulator-metal transition.

Electric-field-dependent charge transport in organic thin-film transistors

2007 ◽  
Vol 101 (5) ◽  
pp. 054515 ◽  
Author(s):  
Liang Wang ◽  
Daniel Fine ◽  
Debarshi Basu ◽  
Ananth Dodabalapur
Keyword(s):  
Thin Film ◽  
Electric Field ◽  
Charge Transport ◽  
Thin Film Transistors ◽  
Organic Thin Film Transistors ◽  
Organic Thin Film ◽  
Field Dependent

Insight into external electric field dependent photoinduced intermolecular charge transport in BHJ solar cell materials

2015 ◽  
Vol 3 (18) ◽  
pp. 4810-4819 ◽  
Author(s):  
Peng Song ◽  
Yuanzuo Li ◽  
Fengcai Ma ◽  
Mengtao Sun
Keyword(s):  
Charge Transfer ◽  
Solar Cell ◽  
Electric Field ◽  
Charge Transport ◽  
External Electric Field ◽  
Intermolecular Charge Transfer ◽  
Field Dependent ◽  
Insight Into

The external electric field dependent photoinduced intermolecular charge transfer in D⋯A type BHJ solar cell materials was theoretically investigated.

The external electric field effect on the charge transport performance of organic semiconductors: a theoretical investigation

2021 ◽  
Author(s):  
Xueying Lu ◽  
Yajing Sun ◽  
Wenping Hu
Keyword(s):  
Electric Field ◽  
Charge Transport ◽  
Transport Properties ◽  
External Electric Field ◽  
Organic Semiconductors ◽  
Theoretical Investigation ◽  
Field Effect ◽  
Electric Field Effect ◽  
Charge Mobility ◽  
External Electric Field Effect

Efficiently controlling the charge transport properties of existing organic semiconductors to achieve a higher charge mobility is one of the hottest issues in the field of organic electronics. Compared with...

Design and Synthesis of Two-Dimensional Covalent Organic Frameworks with Four-Arm Cores: Prediction of Remarkable Ambipolar Charge-Transport Properties

2019 ◽  
Author(s):  
Simil Thomas ◽  
Hong Li ◽  
Raghunath R. Dasari ◽  
Austin Evans ◽  
William Dichtel ◽  
...  
Keyword(s):  
Charge Transport ◽  
Organic Semiconductors ◽  
Density Functional ◽  
Polymer Networks ◽  
Two Dimensional ◽  
Covalent Organic Frameworks ◽  
X Ray Diffraction ◽  
Zinc Porphyrin ◽  
Design And Synthesis ◽  
Predicted Values

<p>We have considered three two-dimensional (2D) π-conjugated polymer networks (i.e., covalent organic frameworks, COFs) materials based on pyrene, porphyrin, and zinc-porphyrin cores connected <i>via</i> diacetylenic linkers. Their electronic structures, investigated at the density functional theory global-hybrid level, are indicative of valence and conduction bands that have large widths, ranging between 1 and 2 eV. Using a molecular approach to derive the electronic couplings between adjacent core units and the electron-vibration couplings, the three π-conjugated 2D COFs are predicted to have ambipolar charge-transport characteristics with electron and hole mobilities in the range of 65-95 cm<sup>2</sup>V<sup>-1</sup>s<sup>-1</sup>. Such predicted values rank these 2D COFs among the highest-mobility organic semiconductors. In addition, we have synthesized the zinc-porphyrin based 2D COF and carried out structural characterization via powder X-ray diffraction and surface area analysis, which demonstrates the feasability of these electroactive networks.</p>

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