Interface States Beyond Band Gap and Their Impact on Charge Carrier Mobility in MOSFETs

2012 ◽  
Vol 59 (3) ◽  
pp. 783-790 ◽  
Author(s):  
Zhigang Ji ◽  
Jian Fu Zhang ◽  
Wei Dong Zhang ◽  
Ben Kaczer ◽  
Stefan De Gendt ◽  
...  
Keyword(s):  
Charge Carrier ◽  
Band Gap ◽  
Carrier Mobility ◽  
Charge Carrier Mobility ◽  
Interface States

High Charge Carrier Mobility, Low Band Gap Donor–Acceptor Benzothiadiazole-oligothiophene Based Polymeric Semiconductors

2012 ◽  
Vol 24 (21) ◽  
pp. 4123-4133 ◽  
Author(s):  
Boyi Fu ◽  
Jose Baltazar ◽  
Zhaokang Hu ◽  
An-Ting Chien ◽  
Satish Kumar ◽  
...  
Keyword(s):  
Charge Carrier ◽  
Band Gap ◽  
Carrier Mobility ◽  
Charge Carrier Mobility ◽  
Low Band Gap ◽  
High Charge ◽  
Donor Acceptor ◽  
High Charge Carrier Mobility

Side chain engineering of fused aromatic thienopyrazine based low band-gap polymers for enhanced charge carrier mobility

2011 ◽  
Vol 21 (5) ◽  
pp. 1537-1543 ◽  
Author(s):  
Rajib Mondal ◽  
Sangwon Ko ◽  
Eric Verploegen ◽  
Hector A. Becerril ◽  
Michael F. Toney ◽  
...  
Keyword(s):  
Charge Carrier ◽  
Band Gap ◽  
Carrier Mobility ◽  
Charge Carrier Mobility ◽  
Side Chain ◽  
Low Band Gap ◽  
Low Band Gap Polymers

Eleven-Membered Fused-Ring Low Band-Gap Polymer with Enhanced Charge Carrier Mobility and Photovoltaic Performance

2014 ◽  
Vol 24 (23) ◽  
pp. 3631-3638 ◽  
Author(s):  
Yongxi Li ◽  
Kai Yao ◽  
Hin-Lap Yip ◽  
Fei-Zhi Ding ◽  
Yun-Xiang Xu ◽  
...  
Keyword(s):  
Charge Carrier ◽  
Band Gap ◽  
Carrier Mobility ◽  
Photovoltaic Performance ◽  
Charge Carrier Mobility ◽  
Low Band Gap ◽  
Fused Ring ◽  
Low Band Gap Polymer

The Influence of Nitrogen Position on Charge Carrier Mobility in Enantiopure Aza[6]helicene Crystals

2018 ◽  
Author(s):  
Francesco Salerno ◽  
Beth Rice ◽  
Julia Schmidt ◽  
Matthew J. Fuchter ◽  
Jenny Nelson ◽  
...  
Keyword(s):  
Solid State ◽  
Charge Carrier ◽  
Carrier Mobility ◽  
Chemical Structure ◽  
Crystal Packing ◽  
Charge Carrier Mobility ◽  
Individual Factor ◽  
Charge Mobility ◽  
Order Of Magnitude ◽  
Small Change

<p>The properties of an organic semiconductor are dependent on both the chemical structure of the molecule involved, and how it is arranged in the solid-state. It is challenging to extract the influence of each individual factor, as small changes in the molecular structure often dramatically change the crystal packing and hence solid-state structure. Here, we use calculations to explore the influence of the nitrogen position on the charge mobility of a chiral organic molecule when the crystal packing is kept constant. The transfer integrals for a series of enantiopure aza[6]helicene crystals sharing the same packing were analysed in order to identify the best supramolecular motifs to promote charge carrier mobility. The regioisomers considered differ only in the positioning of the nitrogen atom in the aromatic scaffold. The simulations showed that even this small change in the chemical structure has a strong effect on the charge transport in the crystal, leading to differences in charge mobility of up to one order of magnitude. Some aza[6]helicene isomers that were packed interlocked with each other showed high HOMO-HOMO integrals (up to 70 meV), whilst molecules arranged with translational symmetry generally afforded the highest LUMO-LUMO integrals (40 - 70 meV). As many of the results are not intuitively obvious, a computational approach provides additional insight into the design of new semiconducting organic materials.</p>

Assembly effect on the charge carrier mobility in quaterthiophene-based n/p-materials

2019 ◽  
Vol 7 (22) ◽  
pp. 6649-6655
Author(s):  
A. López-Andarias ◽  
C. Atienza ◽  
J. López-Andarias ◽  
W. Matsuda ◽  
T. Sakurai ◽  
...  
Keyword(s):  
Charge Carrier ◽  
Self Assembly ◽  
Carrier Mobility ◽  
Charge Carrier Mobility ◽  
Assembly Process ◽  
Charge Mobility

Effect of the peptide-based quaterthiophene self-assembly process on the charge mobility properties of the n/p-materials formed is studied.

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