Low Elastic Modulus and High Charge Mobility of Low-Crystallinity Indacenodithiophene-Based Semiconducting Polymers for Potential Applications in Stretchable Electronics

2018 ◽  
Vol 51 (16) ◽  
pp. 6352-6358 ◽  
Author(s):  
Yilin Li ◽  
Wesley K. Tatum ◽  
Jonathan W. Onorato ◽  
Yongcao Zhang ◽  
Christine K. Luscombe
Keyword(s):  
Elastic Modulus ◽  
Semiconducting Polymers ◽  
Stretchable Electronics ◽  
Charge Mobility ◽  
High Charge ◽  
Low Elastic Modulus ◽  
Potential Applications ◽  
Low Crystallinity

scholarly journals Local Structuring of Diketopyrrolopyrrole (DPP)-Based Semiconducting Polymers Using Molecular Dynamics Simulations

2020 ◽  
Author(s):  
Maryam Reisjalali ◽  
Jose Javier Burgos Marmol ◽  
Alessandro Troisi
Keyword(s):  
Molecular Dynamics ◽  
Molecular Dynamics Simulations ◽  
Electronic Devices ◽  
Atomic Level ◽  
Semiconducting Polymers ◽  
The Other ◽  
Charge Mobility ◽  
High Charge ◽  
High Performing ◽  
Dynamics Simulations

High performing organic semiconducting polymers show great potentials for use in electronic devices which is greatly dependent on the material crystallinity and packing. A series of short oligomers of the diketopyrrolopyrrole (DPP)-based materials that have shown to have high charge mobility are studied to understand the local structuring at atomic level for these materials. The simulations show that the tendency for this material class to form aggregates is driven by the interaction between DPP fragments, but this is modulated by the other conjugated fragments of the materials which afect the rigidity of the polymer and the ability to form aggregates of larger size.<br>

scholarly journals Local Structuring of Diketopyrrolopyrrole (DPP)-Based Semiconducting Polymers Using Molecular Dynamics Simulations

2020 ◽  
Author(s):  
Maryam Reisjalali ◽  
Jose Javier Burgos Marmol ◽  
Alessandro Troisi
Keyword(s):  
Molecular Dynamics ◽  
Molecular Dynamics Simulations ◽  
Electronic Devices ◽  
Atomic Level ◽  
Semiconducting Polymers ◽  
The Other ◽  
Charge Mobility ◽  
High Charge ◽  
High Performing ◽  
Dynamics Simulations

High performing organic semiconducting polymers show great potentials for use in electronic devices which is greatly dependent on the material crystallinity and packing. A series of short oligomers of the diketopyrrolopyrrole (DPP)-based materials that have shown to have high charge mobility are studied to understand the local structuring at atomic level for these materials. The simulations show that the tendency for this material class to form aggregates is driven by the interaction between DPP fragments, but this is modulated by the other conjugated fragments of the materials which afect the rigidity of the polymer and the ability to form aggregates of larger size.<br>

scholarly journals Cytocompatibility of Ti–xZr alloys as dental implant materials

2021 ◽  
Vol 32 (5) ◽  
Author(s):  
Pinghua Ou ◽  
Cong Hao ◽  
Jue Liu ◽  
Rengui He ◽  
Baoqi Wang ◽  
...  
Keyword(s):  
Elastic Modulus ◽  
Pure Titanium ◽  
Dead Cell ◽  
Commercially Pure Titanium ◽  
Modulus Ratio ◽  
High Mechanical Strength ◽  
Commercially Pure ◽  
Low Elastic Modulus ◽  
Cell Assays ◽  
Osteogenic Induction

AbstractTi–xZr (x = 5, 15, 25, 35, 45% wt%) alloys with low elastic modulus and high mechanical strength were fabricated as a novel implant material. The biocompatibility of the Ti–xZr alloys was evaluated by osteoblast-like cell line (MG63) in terms of cytotoxicity, proliferation, adhesion, and osteogenic induction using CCK-8 and live/dead cell assays, electron microscopy, and real-time PCR. The Ti–xZr alloys were non-toxic and showed superior biomechanics compared to commercially pure titanium (cpTi). Ti–45Zr had the optimum strength/elastic modulus ratio and osteogenic activity, thus is a promising to used as dental implants.

A novel biomedical titanium alloy with high antibacterial property and low elastic modulus

2021 ◽  
Vol 81 ◽  
pp. 13-25
Author(s):  
Diangeng Cai ◽  
Xiaotong Zhao ◽  
Lei Yang ◽  
Renxian Wang ◽  
Gaowu Qin ◽  
...  
Keyword(s):  
Titanium Alloy ◽  
Elastic Modulus ◽  
Antibacterial Property ◽  
Low Elastic Modulus ◽  
Biomedical Titanium Alloy

2,6-Bis[2-(4-pentylphenyl)vinyl]anthracene:  A Stable and High Charge Mobility Organic Semiconductor with Densely Packed Crystal Structure

2006 ◽  
Vol 128 (29) ◽  
pp. 9304-9305 ◽  
Author(s):  
Hong Meng ◽  
Fangping Sun ◽  
Marc B. Goldfinger ◽  
Feng Gao ◽  
David J. Londono ◽  
...  
Keyword(s):  
Crystal Structure ◽  
Organic Semiconductor ◽  
Charge Mobility ◽  
High Charge

First-principles calculations for development of low elastic modulus Ti alloys

2004 ◽  
Vol 70 (17) ◽  
Author(s):  
Hideaki Ikehata ◽  
Naoyuki Nagasako ◽  
Tadahiko Furuta ◽  
Atsuo Fukumoto ◽  
Kazutoshi Miwa ◽  
...  
Keyword(s):  
Elastic Modulus ◽  
First Principles ◽  
First Principles Calculations ◽  
Ti Alloys ◽  
Low Elastic Modulus

scholarly journals Microstructural and Mechanical Properties of β-Type Ti–Nb–Sn Biomedical Alloys with Low Elastic Modulus

Metals ◽  
2019 ◽  
Vol 9 (6) ◽  
pp. 712 ◽  
Author(s):  
Peiyou Li ◽  
Xindi Ma ◽  
Duo Wang ◽  
Hui Zhang
Keyword(s):  
Mechanical Properties ◽  
Wear Resistance ◽  
Elastic Modulus ◽  
Martensite Phase ◽  
Ti Alloy ◽  
Martensitic Phase Transition ◽  
Low Elastic Modulus ◽  
Nb Content ◽  
Biomedical Alloy ◽  
Cp Ti

The microstructural and mechanical properties of β-type Ti85-xNb10+xSn5 (x = 0, 3, 6, 10 at.%) alloys with low elastic modulus were investigated. The experimental results show that the Ti85Nb10Sn5 and Ti75Nb20Sn5 alloys are composed of simple α and β phases, respectively; the Ti82Nb13Sn5 and Ti79Nb16Sn5 alloys are composed of β and α″ phases. The content of martensite phase decreases with the increase of Nb content. The Ti82Nb13Sn5 and Ti79Nb16Sn5 alloys show an inverse martensitic phase transition during heating. The Ti85Nb10Sn5 and Ti82Nb13Sn5 alloys with the small residual strain exhibit the good superelastic properties in 10-time cyclic loading. The reduced elastic modulus (Er) of the Ti75Nb20Sn5 alloy (61 GPa) measured by using the nanoindentation technique is 2–6 times of that of human bone (10–30 GPa), and is smaller than that of commercial Ti-6Al-4V biomedical alloy (120 GPa). The Ti75Nb20Sn5 alloy can be considered as a novel biomedical alloy. The wear resistance (H/Er) and anti-wear capability (H3/Er2) values of the four alloys are higher than those of the CP–Ti alloy (0.0238), which indicates that the present alloys have good wear resistance and anti-wear capability.

A Unique Blend of 2‐Fluorenyl‐2‐anthracene and 2‐Anthryl‐2‐anthracence Showing White Emission and High Charge Mobility

2016 ◽  
Vol 129 (3) ◽  
pp. 740-745 ◽  
Author(s):  
Mengyun Chen ◽  
Yang Zhao ◽  
Lijia Yan ◽  
Shuai Yang ◽  
Yanan Zhu ◽  
...  
Keyword(s):  
Charge Mobility ◽  
High Charge ◽  
White Emission

Analysis on the Martensitic Transformation in the Ti-xNb Alloys Using a Phenomenological Theory

2007 ◽  
Vol 124-126 ◽  
pp. 1669-1672 ◽  
Author(s):  
Hi Won Jeong ◽  
Seung Eon Kim ◽  
Chang Yong Jo ◽  
Yong Tae Lee ◽  
Joong Kuen Park
Keyword(s):  
Mechanical Properties ◽  
Elastic Modulus ◽  
Martensitic Transformation ◽  
Shape Memory ◽  
Titanium Alloys ◽  
Martensitic Transformations ◽  
Phenomenological Theory ◽  
Transition Elements ◽  
Low Elastic Modulus ◽  
Diffraction Peaks

The titanium alloys containing the Nb transition elements have been investigated as the Ni-free shape memory and the biomedical alloys with a low elastic modulus. The mechanical properties of the alloys depended upon the meta-stable phases like the α`, α``, ω. To study the martensitic transformations from the β to α`` or α` the Ti-xNb (x=0 to 40 wt%) alloys were melted into the button type ingots using a VAR, and followed by the water-quenching after the soaking at 1000oC for 2hrs. The crystallography of the martensitic phases in the water-quenched alloys was analyzed using a XRD. The diffraction peaks of the orthorhombic martensites were identified by the crystallographic relationship with the bcc matrix. The lattice parameters of the orthorhombic martensites were varied continuously with the contents of the Nb elements. The martensitic transformations of the alloys were studied using the phenomenological theory of Bowles and Mackenzie.

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