scholarly journals Exploring long-range proton conduction, the conduction mechanism and inner hydration state of protein biopolymers

2020 ◽  
Vol 11 (13) ◽  
pp. 3547-3556 ◽  
Author(s):  
Somen Mondal ◽  
Yuval Agam ◽  
Ramesh Nandi ◽  
Nadav Amdursky
Keyword(s):  
Charge Carrier ◽  
Long Range ◽  
Carrier Mobility ◽  
Conduction Mechanism ◽  
Charge Carrier Mobility ◽  
Proton Conduction ◽  
Hydration Layer ◽  
Hydration State

Post formation modification of protein-based materials can attenuate the proton conduction efficiency resulting from change in conduction mechanism, charge carrier mobility, carrier concentrations and inner hydration layer.

scholarly journals Correction: Exploring long-range proton conduction, the conduction mechanism and inner hydration state of protein biopolymers

2020 ◽  
Vol 11 (23) ◽  
pp. 6097-6097
Author(s):  
Somen Mondal ◽  
Yuval Agam ◽  
Ramesh Nandi ◽  
Nadav Amdursky
Keyword(s):  
Long Range ◽  
Conduction Mechanism ◽  
Proton Conduction ◽  
Hydration State

Correction for ‘Exploring long-range proton conduction, the conduction mechanism and inner hydration state of protein biopolymers’ by Somen Mondal et al., Chem. Sci., 2020, 11, 3547–3556, DOI: 10.1039/C9SC04392F.

CHARGE TRANSPORT AND CONDUCTION MECHANISM OF COPPER SUBSTITUTED MAGNESIUM ALUMINIUM FERRITES

1993 ◽  
Vol 07 (19) ◽  
pp. 3461-3472 ◽  
Author(s):  
Y. PURUSHOTHAM ◽  
V. DEVENDER REDDY ◽  
V.N. MULAY ◽  
K. BHUPAL REDDY ◽  
P. VENUGOPAL REDDY
Keyword(s):  
Electrical Conductivity ◽  
Curie Temperature ◽  
Charge Carrier ◽  
Seebeck Coefficient ◽  
Temperature Variation ◽  
Carrier Mobility ◽  
Conduction Mechanism ◽  
Magnetic Transition ◽  
Charge Carrier Mobility ◽  
Polycrystalline Copper

Electrical conductivity (σ) and thermopower (S) studies of polycrystalline copper substituted magnesium aluminium ferrites of different composition were investigated in the temperature range 300–800 K. Plots of log (σT) versus 103/T are almost linear and show a clear transition near the Curie temperature. On the basis of the sign of Seebeck coefficient, all the samples under investigation have been classified as n-type semiconductors. The temperature variation of Seebeck coefficient curves also exhibited a well defined magnetic transition at the Curie temperature. Using the temperature variation of charge carrier mobility a conduction mechanism in these ferrites is suggested.

scholarly journals Elucidating the long-range charge carrier mobility in metal halide perovskite thin films

2019 ◽  
Vol 12 (1) ◽  
pp. 169-176 ◽  
Author(s):  
Jongchul Lim ◽  
Maximilian T. Hörantner ◽  
Nobuya Sakai ◽  
James M. Ball ◽  
Suhas Mahesh ◽  
...  
Keyword(s):  
Thin Films ◽  
Charge Carrier ◽  
Long Range ◽  
Carrier Mobility ◽  
Accurate Determination ◽  
Charge Carrier Mobility ◽  
Metal Halide ◽  
Metal Halide Perovskite ◽  
Halide Perovskite

A new optoelectronic technique which enables the accurate determination of the long-range lateral charge carrier mobility of metal halide perovskite films.

CHARGE TRANSPORT IN GERMANIUM-SUBSTITUTED MAGNESIUM FERRITES

1994 ◽  
Vol 08 (16) ◽  
pp. 947-958 ◽  
Author(s):  
MD. ABDUL MALIK ◽  
V. D. REDDY ◽  
P. VENUGOPAL REDDY ◽  
D. R. SAGAR ◽  
PRANKISHAN
Keyword(s):  
Electrical Conductivity ◽  
Charge Carrier ◽  
Seebeck Coefficient ◽  
Charge Transport ◽  
Carrier Concentration ◽  
Carrier Mobility ◽  
Conduction Mechanism ◽  
Charge Carrier Mobility ◽  
Charge Carrier Concentration ◽  
Experimental Values

Electrical conductivity (σ) and thermopower measurements have been carried out on some Mg 1+x Ge x Fe 2−2x O 4 (0 < x < 0.4) ferrite samples over a temperature range 300–700 K. Using the experimental values of Seebeck coefficient at various temperatures, the values of charge carrier concentration have been determined. On the basis of the temperature variation of charge carrier mobility, the conduction mechanism in these ferrites has been discussed.

CHARGE TRANSPORT AND CONDUCTION MECHANISM OF SOME SUBSTITUTED STRONTIUM W-TYPE HEXAGONAL FERRITES

1996 ◽  
Vol 10 (03) ◽  
pp. 319-336 ◽  
Author(s):  
Y. PURUSHOTHAM ◽  
P. VENUGOPAL REDDY
Keyword(s):  
Electrical Conductivity ◽  
Charge Carrier ◽  
Seebeck Coefficient ◽  
Charge Transport ◽  
Carrier Mobility ◽  
Conduction Mechanism ◽  
Charge Carrier Mobility ◽  
Charge Carrier Concentration ◽  
Hexagonal Ferrites ◽  
Experimental Values

The present work is intended to investigate the thermopower and electrical conductivity studies of some substituted strontium W-type hexagonal ferrites as a function of composition and temperature. On the basis of the sign of the Seebeck coefficient (S), the ferrites under investigation have been classified as n-type semiconductors. Using the experimental values of Seebeck coefficient at various temperatures, the values of charge carrier concentration have been determined. On the basis of the temperature variation of charge carrier mobility, the conduction mechanism in these ferrites has been discussed.

The Influence of Nitrogen Position on Charge Carrier Mobility in Enantiopure Aza[6]helicene Crystals

2018 ◽  
Author(s):  
Francesco Salerno ◽  
Beth Rice ◽  
Julia Schmidt ◽  
Matthew J. Fuchter ◽  
Jenny Nelson ◽  
...  
Keyword(s):  
Solid State ◽  
Charge Carrier ◽  
Carrier Mobility ◽  
Chemical Structure ◽  
Crystal Packing ◽  
Charge Carrier Mobility ◽  
Individual Factor ◽  
Charge Mobility ◽  
Order Of Magnitude ◽  
Small Change

<p>The properties of an organic semiconductor are dependent on both the chemical structure of the molecule involved, and how it is arranged in the solid-state. It is challenging to extract the influence of each individual factor, as small changes in the molecular structure often dramatically change the crystal packing and hence solid-state structure. Here, we use calculations to explore the influence of the nitrogen position on the charge mobility of a chiral organic molecule when the crystal packing is kept constant. The transfer integrals for a series of enantiopure aza[6]helicene crystals sharing the same packing were analysed in order to identify the best supramolecular motifs to promote charge carrier mobility. The regioisomers considered differ only in the positioning of the nitrogen atom in the aromatic scaffold. The simulations showed that even this small change in the chemical structure has a strong effect on the charge transport in the crystal, leading to differences in charge mobility of up to one order of magnitude. Some aza[6]helicene isomers that were packed interlocked with each other showed high HOMO-HOMO integrals (up to 70 meV), whilst molecules arranged with translational symmetry generally afforded the highest LUMO-LUMO integrals (40 - 70 meV). As many of the results are not intuitively obvious, a computational approach provides additional insight into the design of new semiconducting organic materials.</p>

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