Design and characterization of (Al, C)/p-Ge/p-BN/C isotype resonant electronic devices

2015 ◽  
Vol 212 (8) ◽  
pp. 1845-1850 ◽  
Author(s):  
S. E. Al Garni ◽  
A. F. Qasrawi
Keyword(s):  
Polymers ◽  
2021 ◽  
Vol 13 (12) ◽  
pp. 1984
Author(s):  
Yu-Hsun Nien ◽  
Chih-Ning Chang ◽  
Pao-Lin Chuang ◽  
Chun-Han Hsu ◽  
Jun-Lun Liao ◽  
...  

In recent years, portable electronic devices have flourished, and the safety of lithium batteries has received increasing attention. In this study, nanofibers were prepared by electrospinning using different ratios of nylon 66/polyacrylonitrile (PAN), and their properties were studied and compared with commercial PP separators. The experimental results show that the addition of PAN in nylon 66/PAN nanofibrous film used as separator of lithium-ion battery can enhance the porosity up to 85%. There is also no significant shrinkage in the shrinkage test, and the thermal dimensional stability is good. When the Li/LiFePO4 lithium battery is prepared by nylon 66/PAN nanofibrous film used as separator, the capacitor can be maintained at 140 mAhg−1 after 20 cycles at 0.1 C, and the coulombic efficiency is still maintained at 99%, which has excellent electrochemical performance.


2017 ◽  
Vol 53 (11) ◽  
pp. 3241-3247 ◽  
Author(s):  
Mohammad Shahed Ahamed ◽  
Yuji Saito ◽  
Koichi Mashiko ◽  
Masataka Mochizuki

Author(s):  
Nadine Gergel-Hackett ◽  
Garrett S. Rose ◽  
Peter Paliwoda ◽  
Christina A. Hacker ◽  
Curt A. Richter

Entropy ◽  
2020 ◽  
Vol 22 (2) ◽  
pp. 254
Author(s):  
Miao Cai ◽  
Peng Cui ◽  
Yikang Qin ◽  
Daoshuang Geng ◽  
Qiqin Wei ◽  
...  

Understanding the defect characterization of electronic and mechanical components is a crucial step in diagnosing component lifetime. Technologies for determining reliability, such as thermal modeling, cohesion modeling, statistical distribution, and entropy generation analysis, have been developed widely. Defect analysis based on the irreversibility entropy generation methodology is favorable for electronic and mechanical components because the second law of thermodynamics plays a unique role in the analysis of various damage assessment problems encountered in the engineering field. In recent years, numerical and theoretical studies involving entropy generation methodologies have been carried out to predict and diagnose the lifetime of electronic and mechanical components. This work aimed to review previous defect analysis studies that used entropy generation methodologies for electronic and mechanical components. The methodologies are classified into two categories, namely, damage analysis for electronic devices and defect diagnosis for mechanical components. Entropy generation formulations are also divided into two detailed derivations and are summarized and discussed by combining their applications. This work is expected to clarify the relationship among entropy generation methodologies, and benefit the research and development of reliable engineering components.


1999 ◽  
Vol 561 ◽  
Author(s):  
R.C. Advincula ◽  
S. Inaoka ◽  
M. Park ◽  
D. Phillips ◽  
D.M. Shin

ABSTRACTIn this report, we describe our initial synthesis and characterization of mono-functional and bi-functional dibromoalkyl oligothiophenes to achieve amphiphilicity and telechelic functionality. Oligothiophenes are an important class of organic materials for opto-electronic devices and display applications. We have mono-functionalized oligothiophenes by the synthesis of a quinquethiophene bromoalkyl derivative. A bi-functional sexithiophene was derived primarily by the symmetrical coupling of terthiophene derivatives. Both were synthesized using Grignard coupling and lithiation reaction methodologies. UV-Vis, IR, NMR, MALDI-TOF-MS, and DSC confirmed the structure and physical properties of the oligomers. In addition, we have also synthesized an amphiphilic diamine derivative from the reaction of hexamethylenediamine with a bromoalkyl terthiophene derivative. Using photoluminescence, the photophysical properties of the oligomers were found to be that of typical oligothiophenes. Processing as ultrathin films for devices is currently being investigated.


2011 ◽  
Vol 542 (1) ◽  
pp. 227/[749]-236/[758] ◽  
Author(s):  
Freddy Krasinski ◽  
Bertrand Splingart ◽  
Frédéric Dubois ◽  
Ulrich Maschke ◽  
Christian Legrand

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