Article
Chemistry, Physical
Shalini Tomar, P. Ashok
Summary: This study comparatively investigated the electronic and optical properties of triangular-shaped nanoflakes of VX2 with different sizes and compositions. The density of states analysis revealed localized metallic states originating from the edge atoms of the nanoflakes. The optical spectra showed broadening and resonance splitting as flake size and composition changed, respectively. The presence of plasmons, collective excitations arising from localized metallic edge states, was identified through analysis of induced density and transition contribution maps.
Review
Chemistry, Multidisciplinary
Zhihe Liu, Zhennan Wu, Qiaofeng Yao, Yitao Cao, Osburg Jin Huang Chai, Jianping Xie
Summary: This review article focuses on the correlation between the structures, physical and chemical properties of metal nanoclusters and their applications, highlighting the basic principles of structure- and property-oriented applications of metal nanoclusters. It provides guidance for the design of metal nanoclusters with desirable properties to meet application needs.
Article
Chemistry, Multidisciplinary
Si Li, Xi-Yan Dong, Kong-Sheng Qi, Shuang-Quan Zang, Thomas C. W. Mak
Summary: This study successfully obtained four pairs of defective crystals exhibiting full-color emission and circularly polarized luminescence by doping dye molecules into the chiral crystalline metal cluster-based matrixes. The main driving force for generating defective crystals was found to be electrostatic interactions. The defect engineering strategy in this study opens up new possibilities for versatile functions in crystalline cluster-based materials.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2021)
Article
Chemistry, Physical
Chuanjun Zhou, Hao Li, Feng Ke, Chen Zhu, Peiyao Pan, Wen Wu Xu, Xi Kang, Yongbo Song, Manzhou Zhu
Summary: The structure/composition of nanoclusters plays a crucial role in determining their physicochemical properties. Two different Au-Ag nanoclusters were successfully obtained in this study by controlling the Au/Ag molar ratios, and their structures were confirmed using various techniques. The Au11Ag6 nanocluster exhibited good stability and strong red photoluminescence in solution.
JOURNAL OF CHEMICAL PHYSICS
(2021)
Article
Chemistry, Physical
Xue-Jing Zhai, Jia-Hua Hu, Jianxin Guan, Yubing Si, Xi-Yan Dong, Peng Luo, Fangfang Pan, Zhihao Yu, Runping Han, Shuang-Quan Zang
Summary: In this study, newly obtained atomically precise phosphine-thiolate protected Au-11-SH and cationic Au-13-SH with a unique aromatic ligand (quinoline-2-thiol) were used to reveal the origin of luminescence in metal nanoclusters. By comparing with the traditional phosphine-halide-protected Au-11-Cl and Au-13-Cl, it was found that the conversion of chloride to thiol triggered room-temperature luminescence in Au-11 and modulated the luminescence behavior of Au-13. Ultrafast UV/IR spectroscopy and transient absorption spectroscopy provided insights into the relaxation process from ligand to core state, affecting the dynamics of excited states and intermediate states, leading to efficient room-temperature emission. The findings have implications in the fields of lighting, light harvesting, and photocatalysis.
Article
Chemistry, Physical
Ye Liu, Zhi Li, Xiao-He Liu, Nicola Pinna, Yu Wang
Summary: In this study, atomically precise AuxAg25-x nanoclusters (NCs) were used for photocatalytic hydrogen evolution. The incorporation of Au atoms into Ag25 NCs narrowed the HOMO-LUMO gaps and created an interstitial Au-Ag microenvironment, promoting photogenerated charge carrier utilization and optimizing reaction dynamics.
NANOSCALE HORIZONS
(2023)
Article
Chemistry, Inorganic & Nuclear
Xiao Wei, Honglei Shen, Chao Xu, Hao Li, Shan Jin, Xi Kang, Manzhou Zhu
Summary: The determination and regulation of surface active sites in metal nanoclusters lead to the preparation of new cluster-based nanomaterials with customized structures and enhanced performance, showing great significance in understanding structural evolution and physicochemical properties.
INORGANIC CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Arijit Jana, B. K. Spoorthi, Akhil S. Nair, Ankit Nagar, Biswarup Pathak, Tomas Base, Thalappil Pradeep
Summary: In this study, a film of a carborane-thiol-protected tetranuclear copper cluster with characteristic orange luminescence was fabricated and utilized using ambient electrospray deposition. The clusters were deposited at an air-water interface to form a film by charged microdroplets produced by an electrospray tip. The porous surface structure of the film was characterized by different microscopic and spectroscopic techniques. Visible and rapid quenching of the emission of the film upon exposure to 2-nitrotoluene vapours under ambient conditions was observed.
Article
Physics, Applied
Rui Fang, Amir Ghasemi, Dagou A. Zeze, Mehdi Keshavarz Hedayati
Summary: The proposed design of hybrid metasurfaces spatially arranges metals and dielectric resonators in a 2D lateral hybrid system, which exhibits high sensitivity and mechanical tunability. This concept can be applied to wearable devices that require high sensitivity to small mechanical fluctuations.
JOURNAL OF APPLIED PHYSICS
(2022)
Article
Chemistry, Multidisciplinary
Yaowei Peng, Lu Gao, Guligena Pidamaimaiti, Dan Zhao, Lumin Zhang, Guowei Yin, Fu Wang
Summary: This study reports a one-pot synthesis method for highly luminescent and biocompatible gold nanoclusters using polyvinyl pyrrolidone. The synthesized AuNCs exhibit high fluorescence efficiency and stability, making them suitable for cellular and lymph node bioimaging.
Article
Physics, Applied
Jun Zhang, Mengting Li, Beibei Dong, Yajing Wang, Shiqiang Xia, Hai Lu, Yufang Liu, Kun Yu
Summary: This study theoretically investigates the fundamental-frequency and second-harmonic responses of complex nanoclusters constructed by coupled spherical plasmonic nanoparticles, revealing the physical mechanisms and linear/nonlinear coupled-plasmon modes with potential applications in surface optical microscopy, plasmonic sensor, and nanolaser technology.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2022)
Article
Chemistry, Multidisciplinary
Jin Sakai, Sourav Biswas, Tsukasa Irie, Haruna Mabuchi, Taishu Sekine, Yoshiki Niihori, Saikat Das, Yuichi Negishi
Summary: Silver cluster-assembled materials (SCAMs) with molecular-level designability and unique photophysical properties have limited application scope due to their dissimilar structural architecture in different solvent media. In this study, two unprecedented luminescent SCAMs (TUS 1 and TUS 2) were synthesized, composed of an Ag-12 cluster core connected by quadridentate pyridine linkers. These materials exhibit exceptional fluorescence properties with high absolute quantum yield (QY) and excellent chemical stability in a wide range of solvent polarity. A highly sensitive assay for detecting Fe3+ in aqueous medium was developed, with promising detection limits comparable to the standard. The potential application of these materials in environmental monitoring and assessment was demonstrated through the detection of Fe3+ in real water samples.
Article
Chemistry, Inorganic & Nuclear
Anish Kumar Das, Roopesh Mekkat, Subarna Maity, Akhil S. Nair, Subhrajyoti Bhandary, Rohit Bhowal, Amitava Patra, Biswarup Pathak, Deepak Chopra, Sukhendu Mandal
Summary: A series of face-centered cubic-based silver nanoclusters were studied by varying the halogen atom in the thiolate ligand to investigate the influence of halide atoms on the electronic structure. These clusters are emissive at room temperature, with luminescence intensity increasing as temperature decreases, predominantly originating from interband relaxation of the silver cores.
INORGANIC CHEMISTRY
(2021)
Article
Chemistry, Inorganic & Nuclear
Anish Kumar Das, Roopesh Mekkat, Subarna Maity, Akhil S. Nair, Subhrajyoti Bhandary, Rohit Bhowal, Amitava Patra, Biswarup Pathak, Deepak Chopra, Sukhendu Mandal
Summary: The structure-property correlation of a series of silver nanoclusters reveals a strong relationship between the optical and electrochemical bandgap values and the electronic effect of halides, governed by intracluster and intercluster pi-pi interactions. Emission from these clusters at room temperature is predominantly due to interband relaxation of the Ag cores, with femtosecond transient absorption spectra showing decay profiles dominated by relaxation to surface states. This sheds light on the molecular-like dynamics of these nanoclusters with a face-centered cubic core.
INORGANIC CHEMISTRY
(2021)
Article
Chemistry, Inorganic & Nuclear
Yan-Li Gao, Xueli Sun, Xiongkai Tang, Zhenlang Xie, Guolong Tian, Zi-Ang Nan, Huayan Yang, Hui Shen
Summary: A novel alkynyl-stabilized silver-copper alloy nanocluster was synthesized and it was found that the structure of the alkynyl ligands played an important role in dictating the structure of the nanocluster. This nanocluster showed high performance in the catalytic hydrogenation of 4-nitrophenol.
DALTON TRANSACTIONS
(2022)
Article
Chemistry, Physical
Chuanfu Huang, Vitaly V. Kresin, Andriy Pysanenko, Michal Farnik
JOURNAL OF CHEMICAL PHYSICS
(2016)
Article
Chemistry, Physical
Daniel J. Merthe, Vitaly V. Kresin
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2016)
Article
Nanoscience & Nanotechnology
Malak Khojasteh, Vitaly V. Kresin
APPLIED NANOSCIENCE
(2017)
Article
Nanoscience & Nanotechnology
Malak Khojasteh, Shima Haghighat, Jahan M. Dawlaty, Vitaly V. Kresin
Article
Physics, Multidisciplinary
John W. Niman, Benjamin S. Kamerm, Daniel J. Merthe, Lorenz Kranabetter, Vitaly V. Kresin
PHYSICAL REVIEW LETTERS
(2019)
Article
Instruments & Instrumentation
Jiahao Liang, Thomas M. Fuchs, Rolf Schafer, Vitaly V. Kresin
REVIEW OF SCIENTIFIC INSTRUMENTS
(2020)
Article
Materials Science, Multidisciplinary
Malak Khojasteh, Matthew H. Mecklenburg, Patrick J. Edwards, Jacques Lefebvre, Jianfu Ding, Patrick R. L. Malenfant, Vitaly V. Kresin
Article
Chemistry, Physical
Benjamin S. Kamerin, John W. Niman, Vitaly V. Kresin
JOURNAL OF CHEMICAL PHYSICS
(2020)
Article
Chemistry, Physical
Jiahao Liang, Vitaly V. Kresin
JOURNAL OF CHEMICAL PHYSICS
(2020)
Review
Physics, Applied
Patrick J. Edwards, Malak Khojasteh, Avik Halder, Vitaly V. Kresin
Summary: Metal nanoclusters exhibit electronic shell structure and quantum size effect, which are highly beneficial for superconductivity and can exhibit pairing phase transition at high temperatures. In addition to gas-phase research, utilizing nanoclusters as building blocks for superconducting networks and assemblies is crucial for the development of high-Tc systems.
JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM
(2022)
Article
Chemistry, Physical
John W. Niman, Benjamin S. Kamerin, Vitaly V. Kresin, Jan Krohn, Ruth Signorell, Roope Halonen, Klavs Hansen
Summary: The abundance spectra of (CO2)(N) clusters were analyzed under a wide range of adiabatic expansion conditions, revealing a universal pattern in cluster stability functions. Individual cluster properties, size-dependent cluster binding energies, shell and subshell closing sizes, and cuboctahedral packing ordering for larger sizes were identified through the analysis. The study demonstrates that even a small variation in dissociation energies can lead to significant abundance variations, especially for larger clusters.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2022)
Article
Chemistry, Physical
Patrick J. Edwards, Sean Stuart, James T. Farmer, Ran Shi, Run Long, Oleg V. Prezhdo, Vitaly V. Kresin
Summary: Nanostructured electronic devices, like graphene-based ones, can be fully metallized while the insulating substrate remains coverage-free when exposed to small size-selected silver nanoparticles. This effect is due to the low binding energy between metal nanoparticles and a contaminant-free passivated silica surface. It provides insight into nanoparticle adhesion and has practical applications in deposition of metallic layers on device working surfaces, eliminating the need for masking and extensive pre- and post-processing.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2023)
Article
Chemistry, Physical
John W. Niman, Benjamin S. Kamerin, Thomas H. Villers, Thomas M. Linker, Aiichiro Nakano, Vitaly V. Kresin
Summary: Metal-fullerene compounds exhibit different behaviors when reacting with alkali or rare-earth atoms within superfluid helium nanodroplets, with alkali clusters failing to form charge-transfer bonds while rare-earth clusters show strong polarization.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2022)
Article
Chemistry, Physical
John W. Niman, Benjamin S. Kamerin, Lorenz Kranabetter, Daniel J. Merthe, Jiri Suchan, Petr Slavicek, Vitaly V. Kresin
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2019)
Proceedings Paper
Nanoscience & Nanotechnology
Malak Khojasteh, Vitaly V. Kresin
INTERNATIONAL SYMPOSIUM ON CLUSTERS AND NANOMATERIALS
(2017)
