Charge Transfer in Amorphous Colored WO3Films Observed by X-Ray Photoelectron Spectroscopy

We investigate the increase of C-H vibration in benzene rings of pentacene molecule upon doping with indium by the X-ray photoelectron spectroscopy (XPS) characterization technique. The risen of C-H vibration spectral component is employed to demonstrate the charge transfer between In dopant atoms and C atoms in benzene rings of pentacene molecule. This experiment can be used to explain the same mechanism of charge transfer between In dopant atoms and C atoms in In-doped nickel-phthalocyanine(NiPc).

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

EPJ Web of Conferences ◽

10.1051/epjconf/201920505021 ◽

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.

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Time-resolved x-ray photoelectron spectroscopy techniques for real-time studies of interfacial charge transfer dynamics

10.1063/1.4802374 ◽

2013 ◽

Cited By ~ 4

Author(s):

Andrey Shavorskiy ◽

Amy Cordones ◽

Josh Vura-Weis ◽

Katrin Siefermann ◽

Daniel Slaughter ◽

...

Keyword(s):

Charge Transfer ◽

Real Time ◽

Photoelectron Spectroscopy ◽

Interfacial Charge Transfer ◽

Time Resolved ◽

X Ray ◽

Charge Transfer Dynamics ◽

Interfacial Charge

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The Observation of Laser-Induced Transient Species in a Molecular Charge-Transfer System Using X-Ray Photoelectron Spectroscopy.

Acta Chemica Scandinavica ◽

10.3891/acta.chem.scand.52-0275 ◽

1998 ◽

Vol 52 ◽

pp. 275-279

Author(s):

Nicklas Johansson ◽

Thomas Kugler ◽

Lennart Eberson ◽

William R. Salaneck ◽

Reijo Sillanpää ◽

...

Keyword(s):

Charge Transfer ◽

Photoelectron Spectroscopy ◽

Transfer System ◽

Transient Species ◽

X Ray ◽

Molecular Charge

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Enhanced Photocatalytic Activity of BiVO4/Bi2S3/SnS2 Heterojunction under Visible Light

Catalysts ◽

10.3390/catal10111294 ◽

2020 ◽

Vol 10 (11) ◽

pp. 1294

Author(s):

Sopheak Meng ◽

Takaya Ogawa ◽

Hideyuki Okumura ◽

Keiichi N. Ishihara

Keyword(s):

Photocatalytic Activity ◽

Charge Transfer ◽

Photoelectron Spectroscopy ◽

Charge Separation ◽

Solvothermal Synthesis ◽

Photocatalytic Performance ◽

Binding Energies ◽

X Ray ◽

Spatial Charge ◽

Photodegradation Rate

Heterojunction photocatalysts have attracted a significant amount of attention due to their advantages over a single photocatalyst and, particularly, their superior spatial charge separation. Herein, the BiVO4/Bi2S3/SnS2 heterojunction was synthesized via solvothermal synthesis with different ratios of BiVO4 to SnS2. The photodegradation rate of the 0.03 BiVO4/SnS2 sample for rhodamine B removal is 2.3 times or 2.9 times greater than that of a single SnS2 or BiVO4, respectively. The chemical bond between photocatalysts is confirmed by X-ray photoelectron spectroscopy (XPS), and the synchronized shift observed in binding energies strongly indicates the electron screening effect at the heterojunction. A Z-scheme model is proposed to explain charge transfer pathway in the system, in which the formation of Bi2S3 plays a crucial role in the enhanced photocatalytic performance of the heterojunction.

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