scholarly journals Carrier dynamics in highly excited TlInS2: evidence of 2D electron–hole charge separation at parallel layers

2019 ◽  
Vol 21 (4) ◽  
pp. 2102-2114
Author(s):  
Vytautas Grivickas ◽  
Patrik Ščajev ◽  
Vitalijus Bikbajevas ◽  
Olga V. Korolik ◽  
Alexander V. Mazanik
Keyword(s):  
Charge Separation ◽  
Carrier Dynamics ◽  
Crystal Phase ◽  
Transient Grating ◽  
Electron Hole ◽  
Hole Charge

Imprinted transient grating fringes in TlInS2 are attributed to new crystal phase formed by 2D electron–hole charge separation on local layers.

Enhanced photocatalytic performance at a Au/N–TiO2hollow nanowire array by a combination of light scattering and reduced recombination

2014 ◽  
Vol 16 (33) ◽  
pp. 17748-17755 ◽  
Author(s):  
P. Sudhagar ◽  
Anitha Devadoss ◽  
Taeseup Song ◽  
P. Lakshmipathiraj ◽  
Hyungkyu Han ◽  
...  
Keyword(s):  
Light Scattering ◽  
Visible Light ◽  
Charge Separation ◽  
Nitrogen Doping ◽  
Photocatalytic Performance ◽  
Nanowire Array ◽  
Au Nanoparticle ◽  
Electron Hole ◽  
Hole Charge

Maximizing the Au nanoparticle decoration on TiO2nanowire through nitrogen doping for simultaneous enhancement in visible light scattering and electron–hole charge separation.

Intramolecular Polarization Induces Electron–Hole Charge Separation in Light-Harvesting Molecular Triads

2013 ◽  
Vol 118 (1) ◽  
pp. 126-134 ◽  
Author(s):  
Luis G. C. Rego ◽  
Bruno C. Hames ◽  
Kahio T. Mazon ◽  
Jan-Ole Joswig
Keyword(s):  
Charge Separation ◽  
Light Harvesting ◽  
Electron Hole ◽  
Hole Charge

Photoinduced electron-hole charge separation, intrinsic self-doping and novel device applications of Q1D heterojunction materials: mixed-halide MX solids

1993 ◽  
Vol 54 (1-3) ◽  
pp. 385-390 ◽  
Author(s):  
A. Saxena ◽  
X.Z. Huang ◽  
A.R. Bishop ◽  
L.A. Worl ◽  
S.P. Love ◽  
...  
Keyword(s):  
Charge Separation ◽  
Electron Hole ◽  
Novel Device ◽  
Hole Charge ◽  
Device Applications

scholarly journals Superior photo-carrier diffusion dynamics in organic-inorganic hybrid perovskites revealed by spatiotemporal conductivity imaging

2021 ◽  
Vol 12 (1) ◽  
Author(s):  
Xuejian Ma ◽  
Fei Zhang ◽  
Zhaodong Chu ◽  
Ji Hao ◽  
Xihan Chen ◽  
...  
Keyword(s):  
Thin Films ◽  
Solar Cell ◽  
Relaxation Times ◽  
Charge Trapping ◽  
Free Carrier ◽  
Carrier Dynamics ◽  
Electron Hole ◽  
Inorganic Hybrid ◽  
Diffusion Dynamics ◽  
The Difference

AbstractThe outstanding performance of organic-inorganic metal trihalide solar cells benefits from the exceptional photo-physical properties of both electrons and holes in the material. Here, we directly probe the free-carrier dynamics in Cs-doped FAPbI3 thin films by spatiotemporal photoconductivity imaging. Using charge transport layers to selectively quench one type of carriers, we show that the two relaxation times on the order of 1 μs and 10 μs correspond to the lifetimes of electrons and holes in FACsPbI3, respectively. Strikingly, the diffusion mapping indicates that the difference in electron/hole lifetimes is largely compensated by their disparate mobility. Consequently, the long diffusion lengths (3~5 μm) of both carriers are comparable to each other, a feature closely related to the unique charge trapping and de-trapping processes in hybrid trihalide perovskites. Our results unveil the origin of superior diffusion dynamics in this material, crucially important for solar-cell applications.

scholarly journals WO3/BiVO4: impact of charge separation at the timescale of water oxidation

2019 ◽  
Vol 10 (9) ◽  
pp. 2643-2652 ◽  
Author(s):  
Shababa Selim ◽  
Laia Francàs ◽  
Miguel García-Tecedor ◽  
Sacha Corby ◽  
Chris Blackman ◽  
...  
Keyword(s):  
Charge Carrier ◽  
Water Oxidation ◽  
Charge Separation ◽  
Carrier Dynamics ◽  
Applied Bias ◽  
Charge Carrier Dynamics

Unveiling the role of applied bias on the charge carrier dynamics in the WO3/BiVO4 junction during water oxidation.

Photoexcited charge carrier dynamics of interconnected TiO2 nanoparticles: evidence of enhancement of charge separation at anatase–rutile particle interfaces

2018 ◽  
Vol 20 (5) ◽  
pp. 3484-3489 ◽  
Author(s):  
Daiki Shingai ◽  
Yusuke Ide ◽  
Woon Yong Sohn ◽  
Kenji Katayama
Keyword(s):  
Charge Carrier ◽  
Tio2 Nanoparticles ◽  
Hydrothermal Treatment ◽  
Charge Separation ◽  
Separation Efficiency ◽  
Carrier Dynamics ◽  
Charge Carrier Dynamics ◽  
Charge Separation Efficiency ◽  
Photoexcited Charge Carrier

Hydrothermal treatment can improve the charge separation efficiency of P25.

scholarly journals Measurement of Electron-Hole Friction in ann-DopedGaAs/AlGaAsQuantum Well Using Optical Transient Grating Spectroscopy

2011 ◽  
Vol 106 (24) ◽  
Author(s):  
Luyi Yang ◽  
J. D. Koralek ◽  
J. Orenstein ◽  
D. R. Tibbetts ◽  
J. L. Reno ◽  
...  
Keyword(s):  
Transient Grating ◽  
Electron Hole ◽  
Transient Grating Spectroscopy ◽  
Grating Spectroscopy ◽  
Optical Transient

Electron and hole charge separation with a dual channel transistor

1989 ◽  
Vol 36 (11) ◽  
pp. 2604 ◽  
Author(s):  
A. Roy ◽  
M.H. White
Keyword(s):  
Charge Separation ◽  
Dual Channel ◽  
Hole Charge
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