Electric field induced charge migration and formation of conducting filament during resistive switching in electrochemical metallization (ECM) memory cells

2020 ◽  
Vol 128 (20) ◽  
pp. 205102
Author(s):  
Arijit Roy ◽  
Pil-Ryung Cha
Keyword(s):  
Electric Field ◽  
Resistive Switching ◽  
Memory Cells ◽  
Charge Migration ◽  
Conducting Filament ◽  
Induced Charge

scholarly journals An In-Situ Reaction Route to Molecular Level Dispersed Bisimide and ZnO Nanorod Hybrids with Efficient Photo-Induced Charge Transfer

2021 ◽  
Vol 16 (1) ◽  
Author(s):  
Chunzheng Lv ◽  
Lirong He ◽  
Jiahong Tang ◽  
Feng Yang ◽  
Chuhong Zhang
Keyword(s):  
Charge Transfer ◽  
Electric Field ◽  
Self Assembly ◽  
Molecular Level ◽  
Surface Photovoltage ◽  
Zno Nanorod ◽  
In Situ Reaction ◽  
Perylene Bisimide ◽  
Induced Charge

AbstractAs an important photoconductive hybrid material, perylene/ZnO has attracted tremendous attention for photovoltaic-related applications, but generally faces a great challenge to design molecular level dispersed perylenes/ZnO nanohybrids due to easy phase separation between perylenes and ZnO nanocrystals. In this work, we reported an in-situ reaction method to prepare molecular level dispersed H-aggregates of perylene bisimide/ZnO nanorod hybrids. Surface photovoltage and electric field-induced surface photovoltage spectrum show that the photovoltage intensities of nanorod hybrids increased dramatically for 100 times compared with that of pristine perylene bisimide. The enhancement of photovoltage intensities resulting from two aspects: (1) the photo-generated electrons transfer from perylene bisimide to ZnO nanorod due to the electric field formed on the interface of perylene bisimide/ZnO; (2) the H-aggregates of perylene bisimide in ZnO nanorod composites, which is beneficial for photo-generated charge separation and transportation. The introduction of ordered self-assembly thiol-functionalized perylene-3,4,9,10-tetracarboxylic diimide (T-PTCDI)/ ZnO nanorod composites induces a significant improvement in incident photo-to-electron conversion efficiency. This work provides a novel mentality to boost photo-induced charge transfer efficiency, which brings new inspiration for the preparation of the highly efficient solar cell.

scholarly journals Turbulence Enhanced Ferroelectric-Nanocrystal-Based Photocatalysis in Urchin-like TiO2/BaTiO3 Microspheres for Hydrogen Evolution

2021 ◽  
Author(s):  
Haidong Li ◽  
Yanyan Song ◽  
Jiyun Zhang ◽  
Jiating He
Keyword(s):  
Electric Field ◽  
Charge Transport ◽  
Hydrogen Evolution ◽  
Mechanical Energy ◽  
Piezoelectric Potential ◽  
Induced Charge

The application of built-in electric field due to piezoelectric potential is one of the most efficient approaches for photo-induced charge transport and separation. However, the efficiency of converting mechanical energy...

Resistive switching and electric field control of ferromagnetism in SnO2 films deposited at room temperature

2019 ◽  
Vol 475 ◽  
pp. 368-373 ◽  
Author(s):  
Xinran Liu ◽  
Jianpei Bu ◽  
Xue Ren ◽  
Bin Cheng ◽  
Jihao Xie ◽  
...  
Keyword(s):  
Electric Field ◽  
Resistive Switching ◽  
Room Temperature ◽  
Field Control

scholarly journals Voltage-time dilemma of pure electronic mechanisms in resistive switching memory cells

2010 ◽  
Vol 107 (5) ◽  
pp. 054517 ◽  
Author(s):  
Herbert Schroeder ◽  
Victor V. Zhirnov ◽  
Ralph K. Cavin ◽  
Rainer Waser
Keyword(s):  
Resistive Switching ◽  
Memory Cells ◽  
Resistive Switching Memory ◽  
Switching Memory

Time-Resolved Imaging of Correlation-Driven Charge Migration in Light-Induced Molecular Magnets by X-ray Scattering

2020 ◽  
Author(s):  
Jean-Christophe Tremblay ◽  
Gunter Hermann ◽  
Vincent Pohl ◽  
Gopal Dixit
Keyword(s):  
Molecular Magnets ◽  
Time Dependent ◽  
Electron Dynamics ◽  
Charge Migration ◽  
Time Resolved ◽  
X Ray ◽  
X Ray Scattering ◽  
Induced Charge ◽  
Time Resolved Imaging ◽  
The Stability

In this contribution, we investigate the effect of correlation-induced charge migration on the stability of light-induced molecular magnets. Laser-driven electron dynamics is simulated using density-matrix based time-dependent configuration interaction. The...

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