Use of surface photovoltage spectroscopy to probe energy levels and charge carrier dynamics in transition metal (Ni, Cu, Fe, Mn, Rh) doped SrTiO3 photocatalysts for H2 evolution from water

2018 ◽  
Vol 6 (14) ◽  
pp. 5774-5781 ◽  
Author(s):  
Xiaoqing Ma ◽  
Xiaoli Cui ◽  
Zeqiong Zhao ◽  
Mauricio A. Melo ◽  
Emily J. Roberts ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Charge Carrier ◽  
Energy Levels ◽  
Carrier Dynamics ◽  
Surface Photovoltage ◽  
H2 Evolution ◽  
Surface Photovoltage Spectroscopy ◽  
Charge Carrier Dynamics ◽  
Donor States ◽  
Charge Transfer Dynamics

The photovoltage onset reveals the energetics of the donor states, while photovoltage size and reversibility provide information on the charge transfer dynamics of the dopants and their ability to oxidize methanol.

scholarly journals Real-time probing of charge-transfer induced interfacial fields in a dye-semiconductor system using time-resolved XPS

2019 ◽  
Vol 205 ◽  
pp. 05021
Author(s):  
Johannes Mahl ◽  
Stefan Neppl ◽  
Friedrich Roth ◽  
Andrey Shavorskiy ◽  
Nils Huse ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Charge Carrier ◽  
Photoelectron Spectroscopy ◽  
Carrier Dynamics ◽  
Time Resolved ◽  
X Ray ◽  
Charge Carrier Dynamics ◽  
Semiconductor System ◽  
Induced Charge ◽  
Polypyridine Complexes

Photo-induced charge carrier dynamics and transient interfacial fields at the interface between N3 polypyridine complexes and films of nanocrystalline ZnO are probed by picosecond time-resolved X-ray photoelectron spectroscopy.

scholarly journals Isopropanol-assisted synthesis of highly stable MAPbBr3/p-g-C3N4 intergrowth composite photocatalysts and their interfacial charge carrier dynamics

2020 ◽  
Vol 2 (1) ◽  
pp. 274-285 ◽  
Author(s):  
Qun Wang ◽  
Sicao Yu ◽  
Wei Qin ◽  
Xiaohong Wu
Keyword(s):  
Charge Transfer ◽  
Charge Carrier ◽  
Molecular Oxygen ◽  
Oxygen Activation ◽  
Carrier Dynamics ◽  
Core Shell ◽  
Type I ◽  
Charge Carrier Dynamics ◽  
Composite Photocatalysts ◽  
Interfacial Charge

Isopropanol-assisted synthesis MAPbBr3 wrapped/entrapped p-g-C3N4 intergrowth microcrystals have inverted type-I core/shell band configuration which leads to enhanced interfacial charge transfer and molecular oxygen activation.

scholarly journals Charge Carrier Dynamics in Photocatalytic Hybrid Semiconductor–Metal Nanorods: Crossover from Auger Recombination to Charge Transfer

Nano Letters ◽  
2018 ◽  
Vol 18 (8) ◽  
pp. 5211-5216 ◽  
Author(s):  
Yuval Ben-Shahar ◽  
John P. Philbin ◽  
Francesco Scotognella ◽  
Lucia Ganzer ◽  
Giulio Cerullo ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Charge Carrier ◽  
Auger Recombination ◽  
Carrier Dynamics ◽  
Charge Carrier Dynamics

Charge Carrier Dynamics in Nanostructured Tungsten Trioxide for Solar Driven Water Oxidation

2018 ◽  
Author(s):  
Sacha Corby ◽  
Laia Francas ◽  
Shababa Selim ◽  
Michael Sachs ◽  
Andreas Kafizas ◽  
...  
Keyword(s):  
Charge Carrier ◽  
Water Oxidation ◽  
Tungsten Trioxide ◽  
Carrier Dynamics ◽  
Charge Carrier Dynamics

scholarly journals Deciphering the role of quantum dot size in the ultrafast charge carrier dynamics at the perovskite–quantum dot interface

2020 ◽  
Vol 8 (42) ◽  
pp. 14834-14844
Author(s):  
Piotr Piatkowski ◽  
Sofia Masi ◽  
Pavel Galar ◽  
Mario Gutiérrez ◽  
Thi Tuyen Ngo ◽  
...  
Keyword(s):  
Quantum Dot ◽  
Charge Carrier ◽  
Rate Constants ◽  
Transient Absorption ◽  
Carrier Dynamics ◽  
Carrier Transfer ◽  
Charge Carrier Dynamics ◽  
Conduction Bands

Charge-carrier transfer (CT) from the perovskite host to PbS QDs were studied using fs-transient absorption and THz techniques. The CT rate constants increase with the size of QDs due to a change in the position of valence and conduction bands in PbS QDs.

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