scholarly journals Origin of high thermal stability of amorphous Ge1Cu2Te3 alloy: A significant Cu-bonding reconfiguration modulated by Te lone-pair electrons for crystallization

2015 ◽  
Vol 90 ◽  
pp. 88-93 ◽  
Author(s):  
Nian-Ke Chen ◽  
Xian-Bin Li ◽  
Xue-Peng Wang ◽  
Meng-Jiao Xia ◽  
Sheng-Yi Xie ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Lone Pair ◽  
High Thermal Stability ◽  
Cu Bonding ◽  
Lone Pair Electrons ◽  
Thermal Stability Of

Fabrication and Surface Engineering of Two-Dimensional SnS Toward Piezoelectric Nanogenerator Application

MRS Advances ◽  
2018 ◽  
Vol 3 (45-46) ◽  
pp. 2809-2814 ◽  
Author(s):  
Naoki Higashitarumizu ◽  
Hayami Kawamoto ◽  
Keiji Ueno ◽  
Kosuke Nagashio
Keyword(s):  
Thermal Stability ◽  
Surface Morphology ◽  
Oxide Layer ◽  
Chemical Treatment ◽  
Surface Engineering ◽  
Lone Pair ◽  
Covalent Bonding ◽  
Two Dimensional ◽  
Lone Pair Electrons ◽  
Thermal Stability Of

ABSTRACTMechanical exfoliation is performed to fabricate ultrathin SnS layers, and chemical/thermal stability of SnS layers is discussed in comparison with GeS, toward piezoelectric nanogenerator application. Both SnS and GeS are difficult to be exfoliated under 10 nm using tape exfoliation due to strong interlayer ionic bonding by lone pair electrons in Sn or Ge atoms. Au-mediated exfoliation enables to fabricate larger-scale ultrathin SnS and GeS layers thinner than 10 nm owing to strong semi-covalent bonding between Au and S atoms, but GeS surface immediately degrades during Au etching in an oxidative KI/I2 solution. Although the surface of SnS after the Au-mediated exfoliation reveals several-nm oxide layer of SnOx, the surface morphology retains the flatness unlike the case of GeS. The SnS layers are more robust than GeS against the thermal annealing as well as the chemical treatment, suggesting that SnOx works as a passivation layer for SnS. Self-passivated SnS monolayer can be obtained by a controlled post-oxidation.

Photoconductive polyimides derived from a novel imidazole-containing diamine

2019 ◽  
Vol 32 (6) ◽  
pp. 620-630
Author(s):  
Keuk-Min Jeong ◽  
Pradip Kumar Tapaswi ◽  
Takehiko Kambara ◽  
Ryohei Ishige ◽  
Shinji Ando ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Lone Pair ◽  
Imidazole Ring ◽  
Hole Transport ◽  
High Thermal Stability ◽  
High Electron ◽  
Good Thermal Stability ◽  
Biphenyltetracarboxylic Dianhydride ◽  
Lone Pair Electrons ◽  
Tetracarboxylic Dianhydride

A new diamine containing an imidazole structure, 4,4′-(4,5-diphenyl-1H-imidazole-1,2-diyl)dianiline (DIMA), was synthesized to prepare photoconductive polyimides (PIs) with four types of dianhydrides such as 3,3′,4,4′-biphenyltetracarboxylic dianhydride, 4,4′-oxyduphthalic anhydride, 4,4′-(hexafluoroisopropylidene) diphthalic anhydride, and cyclobutane-1,2,3,4,-tetracarboxylic dianhydride, based on the fact that the imidazole ring is a useful n-type block with high electron-donating property and good thermal stability. The imidazole-containing diamine possesses high electron-donating properties due to the lone pair electrons at nitrogen, which affords a high hole-transport property. All the PIs prepared from DIMA were amorphous due to the large side group and kink structure of the diamine, optically transparent (transmittances of 92–98% at 450 nm), and exhibited high thermal stability (10% weight loss temperatures ranged 453–558°C).

Porous homo- and heterochiral cobalt(II) aspartates with high thermal stability of the metal-organic framework

2010 ◽  
Vol 59 (4) ◽  
pp. 733-740 ◽  
Author(s):  
M. P. Yutkin ◽  
M. S. Zavakhina ◽  
D. G. Samsonenko ◽  
D. N. Dybtsev ◽  
V. P. Fedin
Keyword(s):  
Thermal Stability ◽  
Metal Organic Framework ◽  
High Thermal Stability ◽  
Metal Organic ◽  
Thermal Stability Of ◽  
Organic Framework

High thermal stability of the YNbO4 − CaYTiNbO7 composites for radio frequency and microwave applications

2021 ◽  
pp. 124956
Author(s):  
F.F. do Carmo ◽  
J.P.C. do Nascimento ◽  
J.E.V. de Morais ◽  
V.C. Martins ◽  
J.C. Sales ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Radio Frequency ◽  
High Thermal Stability ◽  
Microwave Applications ◽  
Thermal Stability Of

Thermal Stability of 40Cr Steel with Surface Nanocrystallization

2006 ◽  
Vol 510-511 ◽  
pp. 434-437 ◽  
Author(s):  
Yu Liang Liu ◽  
Tian Ying Xiong ◽  
Ke Yang
Keyword(s):  
Thermal Stability ◽  
Surface Layer ◽  
Nanostructured Materials ◽  
High Thermal Stability ◽  
New Method ◽  
Nanostructured Surface ◽  
Surface Nanocrystallization ◽  
Nanostructured Layer ◽  
40Cr Steel ◽  
Thermal Stability Of

Surface Nanocrystallization(SNC) is a new method of fabricating nanostructured materials while thermal stability is an important problem for the application of nanostructured materials. A nanostructured layer was fabricated on the surface of 40Cr steel by Supersonic Particles Bombarding method, and the variation of microstructure and microhardness of nanostructured layer was studied. Nanostructured surface layer showed high thermal stability.

scholarly journals Investigation of reactively sputtered TaN thin-film resistors for microwave photonic applications

2021 ◽  
pp. 93-98
Author(s):  
Evgenii Erofeev ◽  
Egor Polyntsev ◽  
Sergei Ishutkin
Keyword(s):  
Thin Film ◽  
Thermal Stability ◽  
Magnetron Sputtering ◽  
Electrical Resistance ◽  
High Thermal Stability ◽  
Tantalum Nitride ◽  
Reactive Magnetron ◽  
Microwave Photonic ◽  
Thin Film Resistors ◽  
Thermal Stability Of

Electrophysical characteristics and their thermal stability of thin-film resistors based on tantalum nitride (TaN) obtained by reactive magnetron sputtering were investigated. The optimal modes of the magnetron sputtering process are determined, ensuring the Ta2N phase film composition with the value of the specific electrical resistance of 250 μm cm and high thermal stability of the parameters. On the basis of the investigations carried out, thin-film matching resistors were manufactured for use as part of an electro-optical InP-based MZ modulator

Achieving high thermal stability of different rare-earth ions in a single matrix host via the manipulation of the local structure by a solid solution

2020 ◽  
Vol 22 (28) ◽  
pp. 16294-16300
Author(s):  
Xiuxia Yang ◽  
Lei Zhao ◽  
Zhichao Liu ◽  
Shuyu Tian ◽  
Hao Zhang ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Solid Solution ◽  
Rare Earth ◽  
Local Structure ◽  
Local Environment ◽  
High Thermal Stability ◽  
Rare Earth Ions ◽  
Single Matrix ◽  
Thermal Stability Of

Manipulating the local environment of CAS by substitution of Al3+–Y3+ for Si4+–Ca2+ to achieve more stability in the structure of CYA.

Synthesis and thermal stability of dimethyl adamantanes as high-density and high-thermal-stability fuels

Fuel ◽  
2020 ◽  
Vol 260 ◽  
pp. 116424 ◽  
Author(s):  
Jiawei Xie ◽  
Tinghao Jia ◽  
Si Gong ◽  
Ning Liu ◽  
Genkuo Nie ◽  
...  
Keyword(s):  
Thermal Stability ◽  
High Thermal Stability ◽  
High Density ◽  
Thermal Stability Of
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