Time-resolved terahertz spectroscopy reveals the influence of charged sensitizing quantum dots on the electron dynamics in ZnO

Literature Information

Publication Date 2017-02-09
DOI 10.1039/C6CP07509F
Impact Factor 3.676
Authors

Hynek Němec, Karel Žídek, Mohammed J. Al-Marri, Pavel Chábera, Carlito Ponseca, Tönu Pullerits


View Original

Abstract

Photoinitiated charge carrier dynamics in ZnO nanoparticles sensitized by CdSe quantum dots is studied using transient absorption spectroscopy and time-resolved terahertz spectroscopy. The evolution of the transient spectra shows that electron injection occurs in a two-step process, where the formation of a charge transfer state (occurring in several picoseconds) is followed by its dissociation within tens of picoseconds. The photoconductivity of electrons injected into the ZnO nanoparticles is lower than that of charges photogenerated directly in ZnO. We conclude that the motion of injected electrons in ZnO nanoparticles is strongly influenced by their interaction with positive charges left in the sensitizing quantum dots.

Related Literature

A catenane consisting of a large ring threaded through both cyclic units of a handcuff-like compound

Julien Frey, Tomáš Kraus, Valérie Heitz, Jean-Pierre Sauvage

2005-09-23 Communication

DOI: 10.1039/B509745B

An azido–metal–isonicotinate complex showing long-range ordered ferromagnetic interaction: synthesis, structure and magnetic properties

Yong-Fei Zeng, Fu-Chen Liu, Jiong-Peng Zhao, Shuang Cai, Xian-He Bu, Joan Ribas

2006-04-24 Communication

DOI: 10.1039/B601311B

Synthesis, structure, and olefinpolymerization with nickel(ii) N-heterocyclic carbene enolates

Benjamin E. Ketz, Xavier G. Ottenwaelder, Robert M. Waymouth

2005-10-20 Communication

DOI: 10.1039/B511202H

Towards large amounts of Janusnanoparticles through a protection–deprotection route

Stéphane Reculusa, Franck Pereira, Marie-Hélène Delville, Christophe Mingotaud, Etienne Duguet, Elodie Bourgeat-Lami, Serge Ravaine

2005-10-03 Communication

DOI: 10.1039/B507486J

Biocatalytic deuterium- and hydrogen-transfer using over-expressed ADH-‘A’: enhanced stereoselectivity and 2H-labeled chiral alcohols

Christian C. Gruber, Tina M. Poessl, Frank Niehaus, Juergen Eck, Reinhold Oehrlein, Andreas Hafner

2006-04-11 Communication

DOI: 10.1039/B602487D

The pentanuclear Feii cluster [(C5H4)6Fe5]2−: bringing together ferrocene sandwiches and homoleptic Feii-cyclopentadienyl σ-complexes

Ingeborg Sänger, Julia B. Heilmann, Michael Bolte, Hans-Wolfram Lerner, Matthias Wagner

2006-04-07 Communication

DOI: 10.1039/B602359B

Easy access to the family of thiazole N-oxides using HOF·CH3CN

Elizabeta Amir, Shlomo Rozen

2006-04-25 Communication

DOI: 10.1039/B602594C

Fluorescence based strategies for genetic analysis

Rohan T. Ranasinghe, Tom Brown

2005-09-30 Feature Article

DOI: 10.1039/B509522K

Anion-templated assembly of interpenetrated and interlocked structures

Paul D. Beer, Mark R. Sambrook, David Curiel

2006-03-08 Feature Article

DOI: 10.1039/B516435B

You might also like

Compound Q&A

What are the main uses of 1H-Indazole-6-carbonitrile (CAS: 141290-59-7)?

1H-Indazole-6-carbonitrile finds applications in pharmaceuticals, where it serve...

141290-59-71H-Indazole-6-carbon...
Compound Q&A

How should waste containing Dioctyl (2E)-2-butenedioate (CAS: 2997-85-5) be handled?

Waste containing Dioctyl (2E)-2-butenedioate (CAS: 2997-85-5) should be collecte...

2997-85-5Dioctyl (2E)-2-buten...
Compound Q&A

What industries use Sodium [(1,2-benzoxazol-3-ylmethyl)sulfonyl]azanide (CAS: 68291-98-5)?

Sodium [(1,2-benzoxazol-3-ylmethyl)sulfonyl]azanide is primarily used in pharmac...

68291-98-5Sodium [(1,2-benzoxa...
Compound Q&A

Are there alternatives to Dimethyl 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2,6-pyridinedicarboxylate (CAS: 741709-66-0) in synthesis?

Dimethyl 4-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)-2,6-pyridinedicarboxyla...

741709-66-0Dimethyl 4-(4,4,5,5-...
Compound Q&A

How should waste containing 2-Fluoro-6-hydrazinopyridine (CAS: 80714-39-2) be handled?

Waste containing 2-Fluoro-6-hydrazinopyridine (CAS: 80714-39-2) should be manage...

80714-39-22-Fluoro-6-hydrazino...
Compound Q&A

What is 6-Formyl-2-pyridinecarboxylic acid (CAS: 499214-11-8)?

6-Formyl-2-pyridinecarboxylic acid is an organic compound with the molecular for...

499214-11-86-Formyl-2-pyridinec...
900874-91-13-(3,4-dimethoxyphen...
Compound Q&A

How is 9H-Tribenzo[b,d,f]azepine (CAS: 29875-73-8) typically synthesized?

9H-Tribenzo[b,d,f]azepine is typically synthesized via a multi-step process invo...

29875-73-89H-Tribenzo[b,d,f]az...
Compound Q&A

How is 1-Cyclopropyl-7-ethoxy-6-fluoro-8-methoxy-4-oxo-1,4-dihydro-3-quinolinecarboxylic acid (CAS: 1797982-51-4) typically synthesized?

1-Cyclopropyl-7-ethoxy-6-fluoro-8-methoxy-4-oxo-1,4-dihydro-3-quinolinecarboxyli...

1797982-51-41-Cyclopropyl-7-etho...
Compound Q&A

How should waste containing Methyl 3-oxo-1,2,3,4-tetrahydro-6-quinoxalinecarboxylate (CAS: 671820-52-3) be handled?

Waste containing Methyl 3-oxo-1,2,3,4-tetrahydro-6-quinoxalinecarboxylate (CAS: ...

671820-52-3Methyl 3-oxo-1,2,3,4...

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.