Charge transfer process at the Ag/MPH/TiO2 interface by SERS: alignment of the Fermi level

Literature Information

Publication Date 2016-10-13
DOI 10.1039/C6CP04370D
Impact Factor 3.676
Authors

Xiaolei Zhang, Huimin Sui, Xiaolei Wang, Hongyang Su, Weina Cheng, Xu Wang, Bing Zhao


View Original

Abstract

A nanoscale metal–molecule–semiconductor assembly (Ag/4-mercaptophenol/TiO2) has been fabricated over Au nanoparticle (NP) films as a model to study the interfacial charge transfer (CT) effects involved in Ag/MPH/TiO2. Due to the interaction between Au NPs and Ag NPs, some distinct differences occur in the SERS spectra. We also measured the SERS of Ag/MPH (4-mercaptophenol), Ag/MPH/TiO2, and Au/Ag/MPH/TiO2 assemblies at excitation wavelengths of 477, 514, 532, 633, and 785 nm. We found that the changes in the CT process, caused by the introduction of TiO2 and Au, can be reflected in SERS. Then in combination with other detection methods, we proposed a possible CT process involved in the Ag/MPH, Ag/MPH/TiO2, and Au/Ag/MPH/TiO2 assemblies. A Pt/Ag/MPH/TiO2 assembly was also constructed to verify our proposed CT mechanism. This work not only provides more details about CT between metal–molecule–semiconductor interfaces but also aids in constructing nanoscale models to study interfacial problems with the SERS technique.

Related Literature

Front cover

Other

DOI: 10.1039/JA99510FX041

News & Views

News

DOI: 10.1039/B210802J

Front cover

Other

DOI: 10.1039/CS99019FX005

News

Paper

DOI: 10.1039/B100267H

Bhopal - 15 years on

Paper

DOI: 10.1039/B001772H

Editorial

Editorial

DOI: 10.1039/B204527N

GSC TOKYO 2003

2003-09-18 News

DOI: 10.1039/B307225H

Front cover

Other

DOI: 10.1039/CS99019FX009

Green chemistry in developing countries

2000-10-16 Editorial

DOI: 10.1039/B007228L

You might also like

Compound Q&A

What are the main uses of (3.beta.)-3-Hydroxy-N,N-dimethyl-chol-5-en-24-amide (CAS: 79066-03-8)?

(3.beta.)-3-Hydroxy-N,N-dimethyl-chol-5-en-24-amide (CAS: 79066-03-8) is primari...

79066-03-8(3.beta.)-3-Hydroxy-...
Compound Q&A

What regulatory guidelines apply to 5-(aminomethyl)-2-methoxyphenol (CAS: 89702-89-6)?

5-(Aminomethyl)-2-methoxyphenol (CAS: 89702-89-6) is classified under GHS as a s...

89702-89-65-(aminomethyl)-2-me...
Compound Q&A

What is Thieno[2,3-c]pyridin-7(6H)-one (CAS: 28981-13-7)?

Thieno[2,3-c]pyridin-7(6H)-one (CAS: 28981-13-7) is a heterocyclic organic compo...

28981-13-7Thieno[2,3-c]pyridin...
Compound Q&A

Is 1-[(6-Methoxy-3-pyridinyl)methyl]-4-piperidinamine dihydrochloride (CAS: 1185311-28-7) safe?

1-[(6-Methoxy-3-pyridinyl)methyl]-4-piperidinamine dihydrochloride is generally ...

1185311-28-71-[(6-Methoxy-3-pyri...
Compound Q&A

What regulatory guidelines apply to [(2E)-3-Phenyl-2-propen-1-yl]phosphonic acid (CAS: 146404-58-2)?

[(2E)-3-Phenyl-2-propen-1-yl]phosphonic acid (CAS: 146404-58-2) is regulated und...

146404-58-2[(2E)-3-Phenyl-2-pro...
Compound Q&A

What regulatory guidelines apply to 6-Bromo-7-methoxyquinoline (CAS: 1620515-86-7)?

6-Bromo-7-methoxyquinoline (CAS: 1620515-86-7) falls under the scope of the Glob...

1620515-86-76-Bromo-7-methoxyqui...
Compound Q&A

What industries use (2R)-1-(1-Benzofuran-2-yl)-N-propyl-2-pentanamine (CAS: 260550-89-8)?

This compound is primarily used in the pharmaceutical industry for the developme...

260550-89-8(2R)-1-(1-Benzofuran...
1228013-15-71-Ethyl-7-[2-methyl-...
Compound Q&A

Are there alternatives to {5-(Acryloylamino)-2-[(dimethylamino)methyl]phenyl}boronic acid (CAS: 1217500-78-1) in synthesis?

Alternative reagents such as 2-[(dimethylamino)methyl]phenylboronic acid or rela...

1217500-78-1{5-(Acryloylamino)-2...
Compound Q&A

What is 3-(Piperidin-4-yloxy)pyridine (CAS: 310881-48-2)?

3-(Piperidin-4-yloxy)pyridine (CAS: 310881-48-2) is an organic compound with the...

310881-48-23-(Piperidin-4-yloxy...

Source Journal

Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics
CiteScore: 5.5
Self-citation Rate: 10.3%
Articles per Year: 3036

Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.

Recommended Compounds

Recommended Suppliers

Disclaimer
This page provides academic journal information for reference and research purposes only. We are not affiliated with any journal publishers and do not handle publication submissions. For publication-related inquiries, please contact the respective journal publishers directly.
If you notice any inaccuracies in the information displayed, please contact us at support@chemtradehub.com. We will promptly review and address your concerns.