Article
Nanoscience & Nanotechnology
Brianna Conrad, Behrang H. H. Hamadani
Summary: Hyperspectral luminescence imaging enhances the information gained from electroluminescence and photoluminescence images of solar cells by providing high-resolution spectral data. In a study of dilute InGaAs solar cells, we used temperature-dependent luminescence hyperspectral imaging to identify the cause of dark spots and a likely candidate for the defect type. The hyperspectral images also revealed a device-wide pattern in low-energy-tail luminescence and In alloy fraction, indicating increased non-radiative recombination.
Article
Chemistry, Multidisciplinary
Mariano Barella, Ianina L. Violi, Julian Gargiulo, Luciana P. Martinez, Florian Goschin, Victoria Guglielmotti, Diego Pallarola, Sebastian Schluecker, Mauricio Pilo-Pais, Guillermo P. Acuna, Stefan A. Maier, Emiliano Cortes, Fernando D. Stefani
Summary: The study implemented anti-Stokes thermometry for the photothermal characterization of individual nanoparticles, revealing that water dominates heat dissipation for NPs larger than 50 nm. Additionally, comparing the photothermal response of gold nanoparticles on different substrates demonstrated the significant role of interfacial thermal resistances in nanoscopic systems.
Article
Chemistry, Inorganic & Nuclear
Ji-Hyung Choi, Guillaume Fremy, Thibault Charnay, Nour Fayad, Jacques Pecaut, Sule Erbek, Niko Hildebrandt, Veronique Martel-Frachet, Alexei Grichine, Olivier Seneque
Summary: In this article, a novel microscopy imaging probe based on lanthanide complexes is described. The probe exhibits desirable luminescence properties and cell-penetrating ability for 2P imaging of live cells. By conjugating the lanthanide complexes with cell-penetrating peptides, successful synthesis of the conjugates was achieved and their application in various microscopy imaging techniques was evaluated. The results demonstrate that the probe has proper internalization and cytosolic delivery in cells, while maintaining its original luminescence properties. These findings provide new insights for the development of functional probes for live cell microscopy imaging.
INORGANIC CHEMISTRY
(2022)
Article
Multidisciplinary Sciences
Michal Magott, Maria Brzozowska, Stanislaw Baran, Veacheslav Vieru, Dawid Pinkowicz
Summary: In this study, the authors report a novel design strategy for intermetallic nanomagnets, which exhibit magnetic memory effect originating from each individual molecule. They synthesized a nanomagnetic molecule based on a single Er-III center coordinated solely by three transition metal ions in a perfectly trigonal planar fashion. This research opens up a new avenue for the development of high-performance single-molecule magnets.
NATURE COMMUNICATIONS
(2022)
Review
Chemistry, Multidisciplinary
Zhenhua Zhu, Jinkui Tang
Summary: Lanthanide compounds provide a unique chemical platform for developing high-temperature single-molecule magnets (SMMs). Recent research focuses on raising the blocking temperature (T-B) rather than increasing the magnetic anisotropy barrier (U-eff), and considers the effects of molecular vibrations on the relaxation of magnetization. Advances in dimetallofullerenes (di-EMFs) with Ln ions and mixed-valence dilanthanide complexes have demonstrated the potential for room-temperature molecular magnets. This review critically discusses the achievements and effects of metal-metal (MM) bonded lanthanide SMMs, and presents future developments for high-temperature Ln SMMs.
CHEMICAL SOCIETY REVIEWS
(2022)
Article
Chemistry, Multidisciplinary
Md Soif Ahmed, Lavadiya Sireesha, Sudhanshu Kumar Nayak, Rangarajan Bakthavatsalam, Dipanjan Banerjee, Venugopal Rao Soma, Janardan Kundu, Sai Santosh Kumar Raavi
Summary: Cs2AgInCl6 double perovskite (DP) nanocrystals have emerged as a promising material for photonics/optoelectronics due to their nontoxicity, direct bandgap, and high stability. This study investigates the photophysical and nonlinear optical properties of erbium- and ytterbium-doped Cs2AgInCl6 nanocrystals. The results show that these doped nanocrystals exhibit superior nonlinear optical properties compared to undoped ones.
Article
Chemistry, Physical
Yingjie Zhao, Gongxun Bai, Youqiang Huang, Yuan Liu, Dengfeng Peng, Liang Chen, Shiqing Xu
Summary: This study presents a piezophotonic material with multimode emission capabilities, including mechanoluminescence, optical stress sensing, and resistance to ambient light interference. The material, doped with lanthanide ions, shows potential for advanced optical sensing and anti-counterfeiting applications.
Article
Chemistry, Multidisciplinary
Yu Min, Xin Ding, Bing Yu, Youqing Shen, Hailin Cong
Summary: This paper focuses on the application of sodium lanthanide fluoride (NaLnF4) nanoparticles and their derivatives in various biological fields, including the key criteria such as electronic structure, lattice environment, doping strategy, surface functionalization, and basic design principles for biological applications. It also discusses the obstacles encountered in the development process and the research directions and challenges of future new applications.
MATERIALS TODAY CHEMISTRY
(2023)
Article
Chemistry, Inorganic & Nuclear
Avik De, Sukhen Bala, Sayan Saha, Krishna Sundar Das, Sohel Akhtar, Amit Adhikary, Arijit Ghosh, Guo-Zhang Huang, Srijita Paul Chowdhuri, Benu Brata Das, Ming-Liang Tong, Raju Mondal
Summary: The study presents the synthesis, characterization, and luminescence-magnetic properties of Ln-clusters using a novel ligand. The clusters exhibit unique features such as chirality and interesting fluorescence and magnetic behavior, with the Gd cluster showing significant cryogenic magnetic cooling behavior. These compounds were effectively used as fluorescent probes for imaging of human breast adenocarcinoma cells.
DALTON TRANSACTIONS
(2021)
Article
Computer Science, Artificial Intelligence
Lingfeng Liu, Dong Ni, Liankui Dai
Summary: This work proposes an autoencoder structured hybrid optical-electrical neural network method to address the issue of extensive data flow in real-time anomaly detection in hyperspectral imaging. The method utilizes a digital micromirror device as the core optical processor to extract low-level features and employs weight binarization and a conditional subnetwork for optical computation. Case studies have shown that the proposed method significantly reduces sampling time without compromising detection accuracy.
IEEE INTELLIGENT SYSTEMS
(2023)
Article
Spectroscopy
Fernanda Sodre Rodrigues, Victor Agostinho Marques da Silva, Graziella Borges Queiroz Segovia, Adailton Joao Bortoluzzi, Alexandre Cuin, Jessica I. R. de Souza, Juliana A. B. da Silva, Leonis Lourenco da Luz, Severino Alves Junior, Eduardo Tonon de Almeida, Maryene Alves Camargo
Summary: Three new lanthanide complexes Na[Ln(pic)(4)]center dot.2.5H(2)O (Ln = Tb, Eu, or Gd; pic = picolinate) were synthesized and characterized. The crystal structures of the complexes were determined by single-crystal X-ray diffraction. The photoluminescent properties and theoretical studies of the complexes were investigated.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2023)
Review
Chemistry, Multidisciplinary
Wai-Lun Chan, Chen Xie, Wai-Sum Lo, Jean-Claude G. Bunzli, Wai-Kwok Wong, Ka-Leung Wong
Summary: Tetrapyrrole derivatives complexed with lanthanides exhibit remarkable properties like a range of redox states, photo- and electro-chromism, and light emission in visible and near-infrared ranges. These complexes have applications in photodynamic therapy, bioimaging, and biosensing, with recent advances in synthesis improving efficiency and allowing for complex multi-nuclear structures. Major developments in the past five years include improved quantum yield and brightness of Yb-III-containing tetrapyrrole complexes, opening exciting opportunities for bio-applications.
CHEMICAL SOCIETY REVIEWS
(2021)
Article
Materials Science, Multidisciplinary
Anna S. Miroshnichenko, Konstantin Deriabin, Artem Baranov, Vladimir Neplokh, Dmitry M. Mitin, Ilya E. Kolesnikov, Mikhail Dobrynin, Elizaveta K. Parshina, Ivan S. Mukhin, Regina M. Islamova
Summary: Light-excited flexible and self-healing luminescent polymers have been widely studied for the development of advanced color-emitting films. This study presents a two-step synthesis method to produce red, green, and blue-emitting polymers, which can be used for controlled color lighting in flexible devices. Additionally, these polymers demonstrate high tensile strength and elongation, as well as non-autonomous self-healing properties.
ACS APPLIED POLYMER MATERIALS
(2022)
Article
Optics
Haiquan Hu, Hao Zhou, Zhihai Xu, Qi Li, Huajun Feng, Yueting Chen, Tingting Jiang, Wenbin Xu
Summary: This study proposed a practical hyperspectral camera with a designed diffractive optical element (DOE), which achieved good spatial resolution and spectral accuracy in snapshot spectral imaging. This system had great potential in portable hyperspectral imaging system.
OPTICS AND LASERS IN ENGINEERING
(2022)
Article
Chemistry, Inorganic & Nuclear
Pei-Yu Liao, Yang Liu, Ze-Yu Ruan, Hai-Ling Wang, Chen-Guang Shi, Si-Guo Wu, Jian-Hua Jia, Wei Deng, Ming-Liang Tong
Summary: In this study, a series of photochromic rare-earth complexes were synthesized using hexaazamacrocyclic ligand LN6, and the photogenerated radicals of the ligands were revealed for the first time. The complexes 1-Ln showed photochromic behavior upon 365 nm light irradiation, induced by the photo-generated radicals. Static and dynamic magnetic studies showed weak ferromagnetic interactions among DyIII ions and photogenerated LN6 radicals in 1-Dy and its irradiated product 1-Dy*. Time-dependent fluorescence measurements demonstrated the quenching dynamics of lanthanide in the photochromic process, with a high quenching efficiency in the irradiated product 1-Eu*.
INORGANIC CHEMISTRY
(2023)
Editorial Material
Materials Science, Ceramics
Kyle Brinkman, Armin Feldhoff, Eva Hemmer, Krista Carlson
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2023)
Article
Chemistry, Multidisciplinary
Diogo Alves Galico, Muralee Murugesu
Summary: Luminescence thermometry with trivalent lanthanide ions is a promising contactless temperature probing method that has been rapidly growing in various research domains over the past two decades. However, transitioning from laboratory equipment to practical applications remains challenging due to the possibility of background luminescence. To address this issue, we elegantly incorporate a rarely explored thermometric approach called time-gated luminescence thermometry (TGLT). Furthermore, we demonstrate enhanced relative sensitivity through this innovative approach and provide a path for practical application.
Article
Chemistry, Multidisciplinary
Soham Mukherjee, Sarmad Naim Katea, Emille M. Rodrigues, Carlo. U. Segre, Eva Hemmer, Peter Broqvist, Hakan Rensmo, Gunnar Westin
Summary: Nanocrystalline ZnO sponges doped with EuO1.5 were successfully prepared by heating metal-salt complex based precursor pastes. Phase separation between ZnO and c-Eu2O3 was observed at temperatures above 700 degrees C. The clean oxide made at 600 degrees C showed a slight volume increase compared to undoped ZnO, and the Eu-doping had little effect on the local structure of ZnO.
Article
Chemistry, Multidisciplinary
Dylan Errulat, Katie L. M. Harriman, Diogo A. Galico, Alexandros A. Kitos, Akseli Mansikkamaki, Muralee Murugesu
Summary: In this study, a cationic 4f complex Yb(III)[{N(SiMePh2)(2)}(2)][Al{OC(CF3)(3)}(4)] with only two bis-silylamide ligands was reported, which shows slow relaxation of its magnetization. Luminescence spectroscopy and ab initio calculations confirmed the strong ground-state magnetic anisotropy of this complex. These findings provide a facile route to access high-performing single-molecule magnets.
Article
Nanoscience & Nanotechnology
Claudia M. S. Calado, Diogo A. Galico, Muralee Murugesu
Summary: Composition control is a powerful tool for adjusting the optical outputs of high-performance lanthanide luminescent materials. Although commonly used in hierarchically structured nanoparticles, this strategy is seldom applied to molecular compounds due to the limited number of metal centers within a single unit. In this study, we investigate the composition control in a series of molecular cluster-aggregates with an icosanuclear core, aiming to adjust the optical output similarly to nanoparticles. Through exploring the impact of the addition of a third doping ion, we gain insights into the luminescent processes and qualitative trends in each molecular cluster-aggregate.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Diogo Alves Galico, Muralee Murugesu
Summary: Remote temperature probing at cryogenic range is crucial for the advancement of future quantum technologies. In this study, a novel magneto-optical thermometric approach based on magnetic-circular dichroism(MCD) technique is proposed, which offers unprecedented capabilities for meticulous temperature variation analysis at cryogenic temperatures. The use of MCD C-term's temperature sensitivity, combined with both positive and negative signals, enables highly sensitive magneto-optical temperature probing. Additionally, a groundbreaking high relative thermal sensitivity value of 95.3 % K-1 at 2.54 K can be achieved using a mononuclear lanthanide complex, [[Ho(acac)(3)(phen)], in the presence of a 0.25 T applied magnetic field and using a combination of multiparametric thermal read-out with multiple regression. These results unequivocally demonstrate the viability and effectiveness of the proposed methodology for cryogenic temperature sensing.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Review
Chemistry, Multidisciplinary
Diogo Alves Galico, Claudia Manuela Santos Calado, Muralee Murugesu
Summary: In this article, recent achievements in luminescent lanthanide-based molecular cluster-aggregates (MCAs) are reviewed, highlighting why MCAs can be considered as the next generation of highly efficient optical materials. MCAs are high nuclearity compounds composed of rigid multinuclear metal cores encapsulated by organic ligands, which unify the properties of traditional nanoparticles and small molecules. The development of heterometallic luminescent MCAs has shown significant impacts in areas such as anti-counterfeiting materials, luminescent thermometry, and molecular upconversion, representing a new generation of lanthanide-based optical materials.
Article
Chemistry, Inorganic & Nuclear
Airton G. Bispo-Jr, Diogo A. Galico, Roberto M. Diaz-Rodriguez, Jeffrey S. Ovens, Fernando A. Sigoli, Muralee Murugesu
Summary: By studying two dinuclear Nd-III complexes, the influence of terminal ligands on magnetic and luminescence performance was revealed. One of the Nd-III complexes exhibited lower thermal sensitivity and weaker equatorial crystal field component.
INORGANIC CHEMISTRY FRONTIERS
(2023)
Article
Chemistry, Multidisciplinary
Nan Liu, Christian Homann, Samuel Morfin, Meghana S. Kesanakurti, Nicholas D. Calvert, Adam J. Shuhendler, Tom Al, Eva Hemmer
Summary: Multimodal bioimaging probes with optical, MRI, and CT capabilities offer promising biomedical applications. Researchers prepared nanoparticles with multimodal capabilities and addressed issues such as UC emission loss and the effect of outer shell thickness on magnetic and CT performance.
Article
Chemistry, Multidisciplinary
Niki Mavragani, Alexandros A. Kitos, Diogo A. Galico, Akseli Mansikkamaeki, Muralee Murugesu
Summary: The reaction between 1,2,4,5-tetrazine (tz(center dot-)) radical and {Cp*Tb-2}(+) has resulted in the formation of a tetranuclear radical-bridged Tb-III single-molecule magnet. Magnetic, magneto-optical, and computational studies have been used to investigate the strong Ln-radical coupling and electronic differences of the Tb-III ions in [(Cp*Tb-2)(4)(tz(center dot-))(4)]center dot 3C(6)H(6) (1).
CHEMICAL COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Diogo Alves Galico, Muralee Murugesu
Summary: The proof-of-concept for magneto-optical barcodes is demonstrated for the first time. The dual-signalled spectrum observed via magnetic circular dichroism spectroscopy can be used to develop anti-counterfeiting materials with extra layers of security.
Article
Chemistry, Multidisciplinary
Diogo Alves Galico, Muralee Murugesu
Summary: In this study, a novel magneto-optical thermometric approach based on magnetic-circular dichroism (MCD) technique is proposed for precise temperature variation analysis at cryogenic temperatures. The method demonstrates high sensitivity and effectiveness in cryogenic temperature sensing.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Materials Science, Multidisciplinary
Paul Richardson, Alexandros A. Kitos, Michael Triglav, Jeffrey S. Ovens, Isabelle Laroche, Stephanie Delisle, Benoit Jolicoeur, Jaclyn L. Brusso, Muralee Murugesu
Summary: A novel N-rich (73.7%) energetic material, 2,4,6-tris(1H-tetrazol-5-yl)-1,3,5-triazine, along with a series of its salts were synthesized and physically characterized revealing excellent thermal stability and intriguing detonation parameters.
MATERIALS ADVANCES
(2023)
Article
Chemistry, Multidisciplinary
Claudia Manuela Santos Calado, Diogo Alves Galico, Muralee Murugesu
Summary: The impact of composition control and energy transfer on luminescence thermometry in a TbIII/EuIII dual-emitting molecular cluster-aggregate, known as {Ln20}, was investigated. The study of lifetime dynamics provides new insights into enhancing thermometric performance through rational planning and understanding intriguing optical properties.
CHEMICAL COMMUNICATIONS
(2023)
Article
Nanoscience & Nanotechnology
Claudia M. S. Calado, Diogo A. Galico, Muralee Murugesu
Summary: This work presents a study on molecular cluster-aggregates with a 20-metal core, exploring the use of composition control to modulate optical outputs. The impact of a third lanthanide ion on energy transfer and optical thermometry performance is investigated.
ACS APPLIED MATERIALS & INTERFACES
(2023)
