Electrical Conductance Measurement of Oligothiophene Molecular Wires Using Nanogap Electrodes Prepared by Electrochemical Plating

2007 ◽  
Vol 36 (2) ◽  
pp. 224-225 ◽  
Author(s):  
Natsumu Hatanaka ◽  
Masaru Endo ◽  
Shigeki Okumura ◽  
Yutaka Ie ◽  
Ryo Yamada ◽  
...  
Keyword(s):  
Electrical Conductance ◽  
Molecular Wires ◽  
Conductance Measurement ◽  
Nanogap Electrodes ◽  
Electrochemical Plating

scholarly journals Assessing the Reversed Exponential Decay of the Electrical Conductance in Molecular Wires: The Undeniable Effect of Static Electron Correlation

Nano Letters ◽  
2019 ◽  
Vol 19 (10) ◽  
pp. 7394-7399 ◽  
Author(s):  
Sara Gil-Guerrero ◽  
Ángeles Peña-Gallego ◽  
Nicolás Ramos-Berdullas ◽  
Ángel Martín Pendás ◽  
Marcos Mandado
Keyword(s):  
Exponential Decay ◽  
Electron Correlation ◽  
Electrical Conductance ◽  
Molecular Wires ◽  
Static Electron

scholarly journals Spectroscopic, Thermal and Biological Studies on Some Trivalent Ruthenium and Rhodium NS Chelating Thiosemicarbazone Complexes

2007 ◽  
Vol 2007 ◽  
pp. 1-10 ◽  
Author(s):  
Vinod K. Sharma ◽  
Shipra Srivastava ◽  
Ankita Srivastava
Keyword(s):  
Spectroscopic Data ◽  
Electrical Conductance ◽  
Molar Conductivity ◽  
Azomethine Nitrogen ◽  
Significant Activity ◽  
Conductance Measurement ◽  
Biological Studies ◽  
Thiosemicarbazone Complexes ◽  
Elemental Analyses ◽  
Bactericidal Activities

The synthetic, spectroscopic, and biological studies of sixteen ring-substituted 4-phenylthiosemicarbazones and 4-nitrophenyl-thiosemicarbazones of anisaldehyde, 4-chlorobenzaldehyde, 4-fluorobenzaldehyde, and vanillin with ruthenium(III) and rhodium(III) chlorides are reported here. Their structures were determined on the basis of the elemental analyses, spectroscopic data (IR, electronic,H1andC13NMR) along with magnetic susceptibility measurements, molar conductivity and thermogravimetric analyses. Electrical conductance measurement revealed a1:3electrolytic nature of the complexes. The resulting colored products are monomeric in nature. On the basis of the above studies, three ligands were suggested to be coordinated to each metal atom by thione sulphur and azomethine nitrogen to form low-spin octahedral complexes with ruthenium(III) while forming diamagnetic complexes with rhodium(III). Both ligands and their complexes have been screened for their bactericidal activities and the results indicate that they exhibit a significant activity.

Electrical conductance measurement of HgII-mediated DNA duplex in buffered aqueous solution

2020 ◽  
Vol 39 (8) ◽  
pp. 1083-1087
Author(s):  
Ryo Yamada ◽  
Issei Nomura ◽  
Yuki Yamaguchi ◽  
Yosuke Matsuda ◽  
Yoshikazu Hattori ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Electrical Conductance ◽  
Dna Duplex ◽  
Conductance Measurement

Self-Sustaining Soil Electrical Conductance Measurement Using a DC–DC Power Converter

2019 ◽  
Vol 19 (22) ◽  
pp. 10560-10567 ◽  
Author(s):  
I-Che Ou ◽  
Kun-Ju Tsai ◽  
Yuan-Hua Chu ◽  
Yu-Te Liao
Keyword(s):  
Electrical Conductance ◽  
Power Converter ◽  
Conductance Measurement ◽  
Dc Power

Electrical Conductance of Oligothiophene Molecular Wires

Nano Letters ◽  
2008 ◽  
Vol 8 (4) ◽  
pp. 1237-1240 ◽  
Author(s):  
Ryo Yamada ◽  
Hiroaki Kumazawa ◽  
Tomoharu Noutoshi ◽  
Shoji Tanaka ◽  
Hirokazu Tada
Keyword(s):  
Electrical Conductance ◽  
Molecular Wires

SYNTHESIS OF THICK PORPHYRIN MOLECULAR WIRES BY A PALLADIUM CATALYZED OLIGOMERIZATION

2002 ◽  
Vol 01 (05n06) ◽  
pp. 483-487
Author(s):  
HIROAKI OZAWA ◽  
TAKUJI OGAWA
Keyword(s):  
Molecular Weight ◽  
Electron Beam Lithography ◽  
Gel Permeation Chromatography ◽  
Molecular Wires ◽  
Force Microscopy ◽  
Atomic Force ◽  
Gel Permeation ◽  
Palladium Catalyzed ◽  
Nanogap Electrodes ◽  
Tof Ms

In the aim to prepare thick porphyrin molecular wires, which is visible by atomic force microscopy (AFM), even on the rough surfaces of nanogap electrodes fabricated by electron beam lithography, dendrimer protected porphyrins whose two meso-positions are substituted with ethynyl groups. The porphyrin monomer was reacted with palladium catalyst to make oligomers. Analyses of them with time-of-flight mass spectroscopy (TOF-MS), gel-permeation-chromatography (GPC) revealed that the oligomers were distributed up to 16 mer, whose molecular weight was about 38 000 Daltons.

Electrical Conductance of Single Oligothiophene Molecular Wires: Temperature Effect

2011 ◽  
Vol 1286 ◽  
Author(s):  
See Kei Lee ◽  
Ryo Yamada ◽  
Shoji Tanaka ◽  
Hirokazu Tada
Keyword(s):  
Transport Mechanism ◽  
Carrier Transport ◽  
Electrical Conductance ◽  
Molecular Wires ◽  
Scanning Tunneling ◽  
Molecular Junction ◽  
Break Junction ◽  
Charge Carrier Transport ◽  
Tunneling Microscopy ◽  
Hopping Transport

ABSTRACTWe investigated temperature dependence of the electrical conductance of single oligothiophene molecular wires with the length of 2.2 nm (5-mer), 5.6 nm (14-mer) and 6.7 nm (17-mer) by using the scanning tunneling microscopy break junction method. Results show that the dominant charge carrier transport for 5-mer molecule is tunneling while for 17-mer molecule is hopping. The carrier transport mechanism of 14-mer are tunneling transport (T ≤ 350 K) and hopping transport (T > 350 K) indicating that hopping and tunnelling transport are competitive process in the molecular junction.

scholarly journals Tuning molecular fluctuation to boost the conductance in DNA based molecular wires

2019 ◽  
Vol 21 (42) ◽  
pp. 23514-23520 ◽  
Author(s):  
Saientan Bag ◽  
Prabal K. Maiti
Keyword(s):  
Electrical Conductance ◽  
Molecular Wires

The electrical conductance of DNA and G4-Quad is enhanced by tuning their molecular fluctuation using the temperature of the DNA and number of ions inside the pore of G4-Quads.

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