Boron Fullerenes (B40)—A Projecting Applicant for Molecular Devices: A Review

2019 ◽  
Vol 17 (11) ◽  
pp. 859-864
Author(s):  
Jupinder Kaur ◽  
Ravinder Kumar ◽  
Ravinder Singh Sawhney

The field of molecular electronics has gained a great impetus in the recent times and made the fabrication of extremely small devices possible that demonstrates extraordinary electrical properties. Being superconductive, fullerenes have drawn concerted attention of the research community committed to the exploration of applications in the field of molecular electronics. After extensive research in the field of carbon fullerenes in the last decade, Boron based fullerenes have stolen the limelight for their inherent stability among fullerene group. While the properties of B80 fullerene are still under exploration, researchers have been successful in synthesizing all boron fullerenes B40 in the laboratory. B40 is distinctive from other known clusters of boron as it has extraordinary properties like high stability and comprises of both acidic and basic sites, making it an optimum choice for detecting a number of gases like hydrogen, ammonia and carbon dioxide. This paper gives a brief review about the properties of B40 and the comparative research done on Boron fullerene so far.

2014 ◽  
Vol 50 (27) ◽  
pp. 3571-3574 ◽  
Author(s):  
Suha Altarawneh ◽  
S. Behera ◽  
Puru Jena ◽  
Hani M. El-Kaderi

Computational studies reveal that the excellent performance of benzimidazole-linked polymers in selective carbon dioxide capture over methane and nitrogen is facilitated by several electrostatic interactions involving the Lewis basic sites and the aryl C–H of the benzimidazole units with CO2.


2021 ◽  
Author(s):  
Hashem Mohammad ◽  
Busra Demir ◽  
Caglanaz Akin ◽  
Binquan Luan ◽  
Joshua Hihath ◽  
...  

Intercalating ds-DNA/RNA with small molecules can play an essential role in controlling the electron transmission probability for molecular electronics applications such as biosensors, single-molecule transistors, and data storage. However, its...


2011 ◽  
Vol 239-242 ◽  
pp. 2628-2631 ◽  
Author(s):  
Ming Chang Kuan ◽  
Kai Huang Chen ◽  
Wen Cheng Tzou ◽  
Chien Min Cheng ◽  
Yi Jun Lin

In this study, the electrical properties of as-deposited Sr0.4Ba0.6Nb2O6(SBN) ferroelectric thin films on SiO2/Si(100) substrates were improved by low temperature supercritical carbon dioxide fluid (SCF) process treatment. The as-deposited SBN ferroelectric thin films were treated by SCF process which mixed with pure H2O and propyl alcohol. After SCF process treatment, the memory windows increased in C-V curves, and the passivation of oxygen vacancy and defect in leakage current density curves were obtained. In addition, the improvement properties of as-deposited SBN thin films after SCF process treatment were found by XPS, C-V, and J-E measurement. Finally, the mechanism concerning the dependence of electrical properties of the SBN ferroelectric thin films on the SCF process was discussed.


2012 ◽  
Vol 4 (4) ◽  
pp. 391-396 ◽  
Author(s):  
Justas Žaglinskis ◽  
Paulius Rapalis ◽  
Vygintas Daukšys

The article presents the results of comparative motor research on FAME biofuels using diesel engine VALMET 320 DMG. Energy (ηe, be) and environmental parameters (CO2, CO, NOx, HC, SM) of the engine were estimated. The obtained data on motor research into new biofuels show that the properties of Camelina sativa biofuels are as good as those observed in standardized rapeseed methyl ester biofuels. In case of using Camelina sativa biofuels blends VME and ZME at different engine loads, exhaust emissions from gas smoke could be reduced up to 10% and 30% accordingly comparing with mineral diesel. When the engine is fueled with tested biofuel blends, carbon monoxide emissions decrease by about 5–6%, and the factor for effective performance increases by approximately 4%. In all range of engine loads, an increase in nitrogen oxide emissions reaching 2–3% was observed. In all cases of using biofuel blends, carbon dioxide emissions keep close to the application of mineral diesel. Santrauka Straipsnyje pateikiami RRME biodegalų palyginamųjų motorinių bandymų, kurie buvo atlikti dyzeliniame variklyje VALMET 320 DMG, rezultatai. Įvertinti variklio energetiniai (ηe, be) ir ekologiniai rodikliai (CO2, CO, NOX, HC, SM). Atliktų naujų biodegalų motoriniai tyrimų rezultatai rodo, kad naujų Camelina sativa biodegalų savybės nenusileidžia standartizuotiems rapso metilesterio biodegalų savybėms. Lyginant su mineraliniu dyzelinu, naudojant Camelina sativa biodegalų mišinius VME ir ZME, skirtingais variklio apkrovos režimais galima sumažinti išmetamųjų dujų dūmingumą atitinkamai iki 10 % ir 30 %. Varikliui dirbant bandomaisiais biodegalų mišiniais, buvo pasiektas 5–6 % anglies monoksido emisijos sumažėjimas ir 4 % naudingo veikimo koeficiento padidėjimas. Visame variklio apkrovos diapazone stebimas 2–3 % azoto oksidų emisijos padidėjimas. Anglies dioksido emisija visais biodegalų naudojimo atvejais išlieka artima mineralinio dyzelino naudojimui.


1995 ◽  
Vol 09 (03n04) ◽  
pp. 187-193 ◽  
Author(s):  
S.-T. YAU ◽  
YAN ZHOU

In molecular electronics, components and circuits are made of biological molecules.1 It is important to study how the molecules arrange themselves on a substrate and to arrange them artificially. The ferritin molecule is a good candidate for making molecular devices. Previously, transmission electron microscopy was used to image only the metallic core of the ferritin molecule. We use scanning tunneling microscopy to study the behavior of ferritin deposited on a surface by imaging its protein shell. We have observed different kinds of ferritin aggregates as well as single molecules under different deposition conditions. For the first time ordered self-assemble of ferritin aggregates was observed. The aggregates were also found to be arranged in artificially made patterns. We suggest a possible mechanism of the formation of the observed structures.


2013 ◽  
Vol 771 ◽  
pp. 51-54
Author(s):  
Ying Hu Li ◽  
Li Kuo Zhou ◽  
Chao Qun Li

In this work, polystyrene/ graphene nanocomposite foams were prepared using supercritical carbon dioxide. Chemically reduced graphene oxide were incorporated into PS using latex mixing. Subsequently, the nanocomposites were foamed with supercritical CO2, the foaming temperature is varied. The morphology and electrical properties of the foamed samples were discussed. It is suggested that foaming temperature has significant influence on the morphology of foams. For those samples foamed at higher temperature, foams have thin cell wall and low density even when the content of graphene is relatively high, while they possess good electrical conductivity, may be used as light weight functional materials.


2012 ◽  
Vol 06 ◽  
pp. 104-108
Author(s):  
CHIEN-MIN CHENG ◽  
MING-CHANG KUAN ◽  
KAI-HUNAG CHEN ◽  
JEN-HWAN TSAI

Electrical and physical properties of as-deposited Bi 3.9 La 0.1 Ti 2.9 V 0.1 O 12 (BLTV) ferroelectric thin films on SiO 2/ Si (100) substrates were improved by low temperature supercritical carbon dioxide fluid (SCF) process treatment. The as-deposited BLTV ferroelectric thin films were treated by SCF process which mixed with propyl alcohol and pure water. The memory windows increased in C-V curves, and the oxygen vacancy and defect in leakage current density curves were obtained after SCF process treatment. Finally, the improvement properties of as-deposited BLTV thin films after SCF process treatment were investigated by XPS, C-V, and J-E measurement. The mechanism concerning the dependence of electrical properties of the ferroelectric thin films on the SCF process was investigated and discussed.


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