A facile synthesis of highly stable and luminescent Ag clusters: a steady-state and time-resolved spectroscopy study

文献情報

出版日 2014-11-24

DOI 10.1039/C4CP03683B

インパクトファクター 3.676

著者

Nabin Kumar Pal, Carola Kryschi

原文を見る

要旨

In this paper, we reported a very simple and environmentally friendly procedure for the synthesis of bright luminescent and nearly monodisperse Ag nanoclusters stabilized by a poly(N-vinylpyrrolidone) homopolymer. In this synthesis route acetonitrile or N,N-dimethylformamide (DMF) acts as both solvent and a reducing agent at their respective reflux temperatures. The as-prepared Ag clusters were found to be highly stable in various solvents as well as show nearly no changes in their emission intensity in solutions with different pH values and ionic strengths. Remarkably, the acetonitrile method predominantly produces blue emitting Ag clusters with a photoluminescence (PL) emission maximum at 424 nm (quantum yield 3.5%), whereas mainly blue-green emitting Ag clusters with the PL emission maximum at 450 nm (quantum yield 2.7%) were formed using the DMF method. The photo-physical, electronic, structural and morphological properties of the Ag clusters were investigated by performing UV/Vis absorption spectroscopy, stationary and time-resolved PL spectroscopy, X-ray photoelectron spectroscopy, femtosecond transient absorption spectroscopy, and transmission electron microscopy experiments.

掲載誌

Physical Chemistry Chemical Physics

CiteScore: 5.5

自己引用率: 10.3%

年間論文数: 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.

A facile synthesis of highly stable and luminescent Ag clusters: a steady-state and time-resolved spectroscopy study

文献情報

おすすめジャーナル

関連文献

Mesostructure and physical properties of aqueous mixtures of the ionic liquid 1-ethyl-3-methyl imidazolium octyl sulfate doped with divalent sulfate salts in the liquid and the mesomorphic states

Probing the π → π* photoisomerization mechanism of trans-azobenzene by multi-state ab initio on-the-fly trajectory dynamics simulations

Influence of conjugation length on ultrafast electronic tunneling in organic semiconductor thin films

Oxygen vacancy induces self-doping effect and metalloid LSPR in non-stoichiometric tungsten suboxide synergistically contributing to the enhanced photoelectrocatalytic performance of WO3−x/TiO2−x heterojunction

Comment on “Revisiting the definition of local hardness and hardness kernel” by C. A. Polanco-Ramirez, M. Franco-Pérez, J. Carmona-Espíndola, J. L. Gázquez and P. W. Ayers, Phys. Chem. Chem. Phys., 2017, 19, 12355

Dehydrocoupling of dimethylamine borane by titanocene: elucidation of ten years of inconsistency between theoretical and experimental descriptions

Nuclear quantum effects on the liquid–liquid phase transition of a water-like monatomic liquid

Molecular dynamics simulation on the mechanical properties of natural-rubber-graft-rigid-polymer/rigid-polymer systems

Is ReO3 a mixed ionic–electronic conductor? A DFT study of defect formation and migration in a BVIO3 perovskite-type oxide

Q-model of electrode reactions: altering force constants of intramolecular vibrations

こちらもおすすめ

4'-ブロモビフェニル-3-メトークシーディ.ActionBarはどのように保存すればよいですか？

間甲苯乙腈とは何ですか？

2-異丙基フェニルヒドラジン塩酸塩とは何ですか？

5-(4-クロロフェニル)-4H-1,2,4-三氮唑-3-アミンを取り扱う際の実験室安全事項は何ですか？

去甲基雷贝拉唑硫醚はどのように合成されますか？

2-ブロモ-5-フロロ-N-(2-フェノールメチル)ベンゼンウレアは安全ですか？

対甲苯磺酸酯-四聚乙二醇-四氢吡喃醚の物理化学的性質は何ですか？

2-(3-(二氟甲基)-4-氟苯基)-4,4,5,5-四甲基-1,3,2-二噁硼戊環はどのように保存すればよいですか？

6-アミノ-5-クロロ-2-シクロプロピルピリミジンカルボン酸の代替品はありますか？

5-クロロベンゾ[1,3]二オキセイン-4-アミンに適用される法規ガイドラインは何ですか？

掲載誌

Physical Chemistry Chemical Physics

おすすめ化合物

6-(Methoxycarbonyl)-3-cyclohexene-1-carboxylic acid

Ethyl ({[(2-methyl-2-propanyl)oxy]carbonyl}amino)(2-pyridinyl)acetate

(2,2-Diethoxyethyl)(3-methoxyphenyl)sulfane

Ethyl 4-amino-3-phenyl-1H-pyrazole-5-carboxylate

(1S)-1,5-Anhydro-2-O-alpha-L-arabinopyranosyl-1-[5-hydroxy-7-({6-O-[3-(4-hydroxy-3-methoxyphenyl)propanoyl]-beta-D-glucopyranosyl}oxy)-2-(4-hydroxyphenyl)-4-oxo-4H-chromen-6-yl]-D-glucitol

おすすめサプライヤー