scholarly journals Influence of orientation mismatch on charge transport across grain boundaries in tri-isopropylsilylethynyl (TIPS) pentacene thin films

2017 ◽  
Vol 19 (17) ◽  
pp. 10854-10862 ◽  
Author(s):  
Florian Steiner ◽  
Carl Poelking ◽  
Dorota Niedzialek ◽  
Denis Andrienko ◽  
Jenny Nelson
Keyword(s):  
Thin Films ◽  
Charge Transport ◽  
Grain Boundaries ◽  
Electronic Materials ◽  
Scale Model ◽  
Molecular Electronic ◽  
Multi Scale

We present a multi-scale model for charge transport across grain boundaries in molecular electronic materials that incorporates packing disorder, electrostatic and polarisation effects.

scholarly journals Charge transport mechanism in copper phthalocyanine thin films with and without traps

RSC Advances ◽  
2017 ◽  
Vol 7 (86) ◽  
pp. 54911-54919 ◽  
Author(s):  
Varsha Rani ◽  
Akanksha Sharma ◽  
Pramod Kumar ◽  
Budhi Singh ◽  
Subhasis Ghosh
Keyword(s):  
Thin Films ◽  
Charge Transport ◽  
Grain Boundaries ◽  
Transport Mechanism ◽  
Copper Phthalocyanine ◽  
Organic Thin Films ◽  
Interface States ◽  
Charge Transport Mechanism ◽  
Density Of Interface States

We investigate the charge transport mechanism in copper phthalocyanine thin films with and without traps. We find that the density of interface states at the grain boundaries can decide the mechanism of charge transport in organic thin films.

scholarly journals Polymer Charge Transport: Charge-Transport Anisotropy Due to Grain Boundaries in Directionally Crystallized Thin Films of Regioregular Poly(3-hexylthiophene) (Adv. Mater. 16/2009)

2009 ◽  
Vol 21 (16) ◽  
pp. NA-NA
Author(s):  
Leslie H. Jimison ◽  
Michael F. Toney ◽  
Iain McCulloch ◽  
Martin Heeney ◽  
Alberto Salleo
Keyword(s):  
Thin Films ◽  
Charge Transport ◽  
Grain Boundaries ◽  
Regioregular Poly

Effect of Grain Boundaries on Charge Transport in Methylammonium Lead Iodide Perovskite Thin Films

2019 ◽  
Vol 123 (9) ◽  
pp. 5321-5325 ◽  
Author(s):  
Hamidreza Khassaf ◽  
Srinivas K. Yadavalli ◽  
Yuanyuan Zhou ◽  
Nitin P. Padture ◽  
Angus I. Kingon
Keyword(s):  
Thin Films ◽  
Charge Transport ◽  
Grain Boundaries ◽  
Lead Iodide ◽  
Methylammonium Lead Iodide

Charge Transport in Pentacene Thin Film Transistors

2001 ◽  
Vol 665 ◽  
Author(s):  
J. H. Schön ◽  
L. D. Buchholz ◽  
Ch. Kloc ◽  
B. Batlogg
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Single Crystal ◽  
Charge Transport ◽  
Grain Boundaries ◽  
Thin Film Transistors ◽  
Room Temperature ◽  
Nanocrystalline Material ◽  
Hole Mobility ◽  
Grain Sizes

ABSTRACTThe charge transport properties in polycrystalline pentacene thin film transistors is investigated. A potential barrier is formed at grain boundaries due charged trapping states. The influence of such grain boundaries on the hole mobility of the devices is analyzed for different grain sizes, trap concentrations, and carrier densities. The results reveal that room temperature mobilities exceeding 0.5 cm2/Vs can be obtained in thin films with large grains as well as in nanocrystalline material. Consequently, single crystal device limits can be reached also by polycrystalline pentacene thin film transistors.

CNT Thin Film Network Failure due to Concentrated Current Loadings

2011 ◽  
Author(s):  
David A. Jack
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Electrical Response ◽  
Three Dimensional ◽  
Element Model ◽  
Scale Model ◽  
Lightning Strike ◽  
Similar System ◽  
Network Failure ◽  
Multi Scale

Polymer composite carbon nanotube (CNT) thin films have been hypothesized as a possible material for lightning strike protection for next generation aircraft structures. This study employs the author’s previously presented three-dimensional physics-based coupled thermal and electrical multi-scale model which constructs the non-deterministic nanostructure variations for a CNT thin film, and returns the bulk thermal and electrical response due to high electrical loadings. The key results of the present study are the presentation of a possible failure mechanism for CNT thin films under increasing electrical loadings. This paper discusses the nanoscale breakdown of the network conductivity using a quasi-static loading, and uses the nanoscale results in a macroscopic finite element model which couples resistive heating with thermal breakdown. The results are in reasonable agreement with those found in the literature for a similar system.

Charge-Transport Anisotropy Due to Grain Boundaries in Directionally Crystallized Thin Films of Regioregular Poly(3-hexylthiophene)

2009 ◽  
Vol 21 (16) ◽  
pp. 1568-1572 ◽  
Author(s):  
Leslie H. Jimison ◽  
Michael F. Toney ◽  
Iain McCulloch ◽  
Martin Heeney ◽  
Alberto Salleo
Keyword(s):  
Thin Films ◽  
Charge Transport ◽  
Grain Boundaries ◽  
Regioregular Poly

scholarly journals Exploring the Molecular Electronic Device Applications of Synthetically Versatile Silicon Pincer Complexes as Charge Transport and Electroluminescent Layers

2022 ◽  
Author(s):  
Margaret Kocherga ◽  
Kevin M. Boyle ◽  
Jon W Merkert ◽  
Thomas Andrew Schmedake ◽  
Michael G Walter
Keyword(s):  
Charge Transport ◽  
Electronic Device ◽  
Electronic Materials ◽  
Pincer Complexes ◽  
Molecular Electronic ◽  
Device Application ◽  
Device Applications ◽  
Molecular Electronic Device

Hexacoordinate silicon pincer complexes using 2,6-bis(benzimidizol-2-yl)pyridine (bzimpy) ligands have been developed as a multifunctional, molecular electronic materials platform. We report the synthesis, characterization, and device application of a variety of...

Three-dimensional Reconstruction of Microscopic Image Based on Multi-ST Algorithm

2020 ◽  
Vol 64 (2) ◽  
pp. 20506-1-20506-7
Author(s):  
Min Zhu ◽  
Rongfu Zhang ◽  
Pei Ma ◽  
Xuedian Zhang ◽  
Qi Guo
Keyword(s):  
3D Reconstruction ◽  
Three Dimensional ◽  
Scale Model ◽  
Microscopic Image ◽  
Multi Scale ◽  
Gaussian Pyramid ◽  
Cost Aggregation ◽  
Dimensional Reconstruction ◽  
Image Pairs ◽  
Accurate Matching

Abstract Three-dimensional (3D) reconstruction is extensively used in microscopic applications. Reducing excessive error points and achieving accurate matching of weak texture regions have been the classical challenges for 3D microscopic vision. A Multi-ST algorithm was proposed to improve matching accuracy. The process is performed in two main stages: scaled microscopic images and regularized cost aggregation. First, microscopic image pairs with different scales were extracted according to the Gaussian pyramid criterion. Second, a novel cost aggregation approach based on the regularized multi-scale model was implemented into all scales to obtain the final cost. To evaluate the performances of the proposed Multi-ST algorithm and compare different algorithms, seven groups of images from the Middlebury dataset and four groups of experimental images obtained by a binocular microscopic system were analyzed. Disparity maps and reconstruction maps generated by the proposed approach contained more information and fewer outliers or artifacts. Furthermore, 3D reconstruction of the plug gauges using the Multi-ST algorithm showed that the error was less than 0.025 mm.

Piezoelectric Response and Polarization-Dependent Conductivity of Grain Boundaries in BiFeO3 Thin Films

2019 ◽  
Author(s):  
D.O. Alikin ◽  
Y. Fomichov ◽  
S.P. Reis ◽  
A.S. Abramov ◽  
D.S. Chezganov ◽  
...  
Keyword(s):  
Thin Films ◽  
Grain Boundaries ◽  
Piezoelectric Response ◽  
Bifeo3 Thin Films

Effects of parametric uncertainty on multi-scale model predictions of shock response of a pressed energetic material

2019 ◽  
Vol 125 (23) ◽  
pp. 235104 ◽  
Author(s):  
Sangyup Lee ◽  
Oishik Sen ◽  
Nirmal Kumar Rai ◽  
Nicholas J. Gaul ◽  
K. K. Choi ◽  
...  
Keyword(s):  
Energetic Material ◽  
Parametric Uncertainty ◽  
Scale Model ◽  
Multi Scale ◽  
Model Predictions ◽  
Shock Response
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