scholarly journals Measuring Charge Transport from Transient Photovoltage Rise Times. A New Tool To Investigate Electron Transport in Nanoparticle Films

2006 ◽  
Vol 110 (34) ◽  
pp. 17155-17160 ◽  
Author(s):  
Brian C. O'Regan ◽  
Klaas Bakker ◽  
Jessica Kroeze ◽  
Herman Smit ◽  
Paul Sommeling ◽  
...  
Keyword(s):  
Electron Transport ◽  
Charge Transport ◽  
Nanoparticle Films ◽  
Transient Photovoltage

scholarly journals Charge transport through extended molecular wires with strongly correlated electrons

2021 ◽  
Author(s):  
James O. Thomas ◽  
Jakub K. Sowa ◽  
Bart Limburg ◽  
Xinya Bian ◽  
Charalambos Evangeli ◽  
...  
Keyword(s):  
Electron Transport ◽  
Charge Transport ◽  
Experimental Studies ◽  
Strongly Correlated Electrons ◽  
Molecular Wires ◽  
Correlated Electrons ◽  
Strongly Correlated

Experimental studies of electron transport through an edge-fused porphyrin oligomer in a graphene junction are interpreted within a Hubbard dimer framework.

scholarly journals Improving the parameters of electron transport in quantum dot sensitized solar cells through seed layer deposition

RSC Advances ◽  
2018 ◽  
Vol 8 (46) ◽  
pp. 26056-26068 ◽  
Author(s):  
Mahmoud Samadpour
Keyword(s):  
Solar Cells ◽  
Electron Transport ◽  
Quantum Dot ◽  
Charge Transport ◽  
Seed Layer ◽  
Layer Deposition ◽  
Sensitized Solar Cells

It is proved that the seed layer deposition could be systematically applied in order to enhance the charge transport in the cells.

Enhanced charge transport in ReSe2-based 2D/3D electrodes for efficient hydrogen evolution reaction

2020 ◽  
Vol 56 (2) ◽  
pp. 305-308 ◽  
Author(s):  
Jing Li ◽  
Yuanwu Liu ◽  
Chen Liu ◽  
Wentian Huang ◽  
Ying Zhang ◽  
...  
Keyword(s):  
Electron Transport ◽  
Size Effect ◽  
Charge Transport ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Porous Carbon ◽  
High Density ◽  
Carbon Cloth ◽  
Catalytic Sites ◽  
3D Electrodes

Ultra-high-density ReSe2 nanoflakes with uniform small 2D size were grown on porous carbon cloth by CVD. The 2D/3D construction gave more active catalytic sites, and the small size effect and the interfacial C–Se bonding facilitated electron transport between ReSe2 and PCC.

Electron Transport Features in Heterostructures 3C-SiC(n)/Si(p) at the Elevated Temperatures

2013 ◽  
Vol 740-742 ◽  
pp. 498-501
Author(s):  
A.V. Afanasyev ◽  
V.A. Ilyin ◽  
V.V. Luchinin ◽  
A.S. Petrov
Keyword(s):  
Electron Transport ◽  
Charge Transport ◽  
Wide Temperature Range ◽  
Silicon Substrate ◽  
Elevated Temperatures ◽  
Reverse Current ◽  
Current Generation ◽  
Temperature Range ◽  
Working Temperature ◽  
Transport Diffusion

3C-SiC (n) / Si (p) heterostructures were obtained and investigated in a wide temperature range. It was shown, the main mechanisms of charge transport diffusion and recombination. The properties of silicon substrate were determining the working temperature range of investigated diodes. Therefore the rectifying properties of 3С-SiC(n)/Si(p) diodes were stable only up to 473 K. Two sites with different activation energies were observed on the Jrev(1/T) curves at fixed voltage: 0,32 eV which, characterized states on the SiC/Si interface, Е2 ≈ 0,55 eV which corresponds to the middle of silicon bandgap and defines existence of reverse current generation component.

Dynamics of CO2-Plasticized Electron Transport in Au Nanoparticle Films:  Opposing Effects of Tunneling Distance and Local Site Mobility

2007 ◽  
Vol 111 (9) ◽  
pp. 3778-3785 ◽  
Author(s):  
Jai-Pil Choi ◽  
Melissa M. Coble ◽  
Matthew R. Branham ◽  
Joseph M. DeSimone ◽  
Royce W. Murray
Keyword(s):  
Electron Transport ◽  
Au Nanoparticle ◽  
Nanoparticle Films ◽  
Local Site ◽  
Opposing Effects ◽  
Tunneling Distance

Electroluminescent Diodes Using Cyclohexane-Based Glass Forming Liquid Crystals and Their Analogues

1996 ◽  
Vol 425 ◽  
Author(s):  
C. P. Lin ◽  
T. Tsutsui ◽  
S. Saito ◽  
S. H. Chen ◽  
J. C. Mastrangelo ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Electron Transport ◽  
Charge Transport ◽  
Single Layer ◽  
Hole Transport ◽  
Device Performance ◽  
Glass Forming ◽  
Two Component ◽  
Organic Electroluminescent ◽  
Transport Molecules

AbstractOrganic electroluminescent(EL) diodes using spin-coat films of cyclohexane-based glass-forming liquid crystal (LC) materials were fabricated. The cyclohexane-based LC materials were found to be useful for EL diodes. Blending the LC materials with charge transport molecules was found to be a promising method for improving device performance. Conventional hole transport and electron transport molecules were found to show a tendency to form exciplexes with cyclohexanebased LC materials. This difficulty was overcome by the introduction of cyclohexane-based charge transport molecules. The EL quantum efficiency of 0.06% was attained in the single-layer devices with two-component blends.

scholarly journals A highly conductive fibre network enables centimetre-scale electron transport in multicellular cable bacteria

2019 ◽  
Vol 10 (1) ◽  
Author(s):  
Filip J. R. Meysman ◽  
Rob Cornelissen ◽  
Stanislav Trashin ◽  
Robin Bonné ◽  
Silvia Hidalgo Martinez ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Electron Transport ◽  
Charge Transport ◽  
Cell Envelope ◽  
High Conductivity ◽  
Biological Structure ◽  
Electrical Currents ◽  
Fibre Network

Abstract Biological electron transport is classically thought to occur over nanometre distances, yet recent studies suggest that electrical currents can run along centimetre-long cable bacteria. The phenomenon remains elusive, however, as currents have not been directly measured, nor have the conductive structures been identified. Here we demonstrate that cable bacteria conduct electrons over centimetre distances via highly conductive fibres embedded in the cell envelope. Direct electrode measurements reveal nanoampere currents in intact filaments up to 10.1 mm long (>2000 adjacent cells). A network of parallel periplasmic fibres displays a high conductivity (up to 79 S cm−1), explaining currents measured through intact filaments. Conductance rapidly declines upon exposure to air, but remains stable under vacuum, demonstrating that charge transfer is electronic rather than ionic. Our finding of a biological structure that efficiently guides electrical currents over long distances greatly expands the paradigm of biological charge transport and could enable new bio-electronic applications.

Core–shell α-Fe2O3-mixed phase TiO2 nanocubes as a highway for electron transport with efficient energy harvesting

2020 ◽  
Vol 5 (4) ◽  
pp. 797-803
Author(s):  
Kiran P. Shejale ◽  
Sumit Saxena ◽  
Shobha Shukla
Keyword(s):  
Electron Transport ◽  
Energy Harvesting ◽  
Charge Transport ◽  
Mixed Phase ◽  
Core Shell ◽  
Efficient Energy ◽  
Immense Potential ◽  
Photoelectric Devices

Morphology (shape + phase) driven nanoassemblies are emerging materials for faster charge transport and have immense potential for the development of photoelectric devices.

scholarly journals High-Performance and Hysteresis-Free Perovskite Solar Cells Based on Rare-Earth-Doped SnO2 Mesoporous Scaffold

Research ◽  
2019 ◽  
Vol 2019 ◽  
pp. 1-13 ◽  
Author(s):  
Qiyao Guo ◽  
Jihuai Wu ◽  
Yuqian Yang ◽  
Xuping Liu ◽  
Zhang Lan ◽  
...  
Keyword(s):  
Solar Cells ◽  
Rare Earth ◽  
Electron Transport ◽  
Charge Transport ◽  
Photovoltaic Performance ◽  
Perovskite Solar Cells ◽  
Transport Layer ◽  
Electron Transport Layer ◽  
Rare Earth Doping ◽  
Perovskite Layer

Tin oxide (SnO2), as electron transport material to substitute titanium oxide (TiO2) in perovskite solar cells (PSCs), has aroused wide interests. However, the performance of the PSCs based on SnO2 is still hard to compete with the TiO2-based devices. Herein, a novel strategy is designed to enhance the photovoltaic performance and long-term stability of PSCs by integrating rare-earth ions Ln3+ (Sc3+, Y3+, La3+) with SnO2 nanospheres as mesoporous scaffold. The doping of Ln promotes the formation of dense and large-sized perovskite crystals, which facilitate interfacial contact of electron transport layer/perovskite layer and improve charge transport dynamics. Ln dopant optimizes the energy level of perovskite layer, reduces the charge transport resistance, and mitigates the trap state density. As a result, the optimized mesoporous PSC achieves a champion power conversion efficiency (PCE) of 20.63% without hysteresis, while the undoped PSC obtains an efficiency of 19.01%. The investigation demonstrates that the rare-earth doping is low-cost and effective method to improve the photovoltaic performance of SnO2-based PSCs.

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