Article
Chemistry, Inorganic & Nuclear
Yan Hao, Yibo Zhang, Shen Wang
Summary: MgAl2O4 ceramics were synthesized by a Pechini-type hydrothermal process, with the effects of different hydrolysis solvents investigated. The results showed that powders obtained in hydrophilic solvents exhibited different characteristics, and sheet-like MgAl2O4: Cr3+ powders had better emission intensity.
INORGANIC CHEMISTRY COMMUNICATIONS
(2021)
Article
Materials Science, Multidisciplinary
N. Mironova-Ulmane, M. G. Brik, J. Grube, G. Krieke, A. Antuzevics, V Skvortsova, M. Kemere, E. Elsts, A. Sarakovskis, M. Piasecki, A. Popov
Summary: In this study, the natural spinel crystal MgAl2O4 containing Cr3+ ions was experimentally and theoretically analyzed. Absorption and emission spectra were recorded at room and low temperatures. The results showed the energy level schemes of the Cr3+ ions at the Al sites with the local D3d symmetry, and the effects of the trigonal crystal field were clearly seen in the calculated results, which were in good agreement with the experimental spectra.
Article
Materials Science, Ceramics
Xiaomeng Yin, Ming Qiang, Hui Lin, Dawei Zhang, Ruijin Hong, Zhaoxia Han
Summary: In this study, a novel spinel-type phosphor material MgAl2-xGaxO4 doped with Cr3+ was fabricated using the high-temperature solid-state sintering method. The crystal field environment of the spinel was adjusted by replacing Al ions with Ga3+ ions of varying concentrations. Increasing the Ga3+ ion doping concentration resulted in larger cell volume and D-q/B gradient, indicating a decrease in the crystal's field strength. The excitation spectra of MgAl1.995-xGaxO4:0.5%Cr3+ phosphors showed a redshift. Additionally, higher Ga3+ ion doping concentration improved the emission intensity and thermal stability of the phosphors.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2023)
Article
Chemistry, Inorganic & Nuclear
Jiawei Zhang, Zhijun Wang, Xiaoxue Huo, Yu Wang, Panlai Li
Summary: In this study, multimodal fluorescent materials of Ca3Al2Ge3O12:Mn2+,Cr3+ were synthesized using the traditional high-temperature solid-state reaction method. These materials exhibit persistent luminescence with dynamic color-tunable properties at different concentrations, excitations, and temperatures. The materials also show potential applications in anti-counterfeiting and industrial inspection.
INORGANIC CHEMISTRY FRONTIERS
(2022)
Article
Materials Science, Multidisciplinary
Yu. S. Orlov, S. Nikolaev, V. I. Kuz'min, A. E. Zarubin, S. G. Ovchinnikov
Summary: This study investigates the effects of interatomic hoppings of excitons and the formation of excitonic Bose condensate on strongly correlated spin crossover systems, using the effective Hamiltonian for the two-band Kanamori model. It is found that antiferromagnetic ordering occurs due to exciton order, even in the absence of interatomic exchange interaction. The spectrum of excitonic excitations is calculated at various points on the temperature vs crystal field phase diagram, revealing a gap outside the exciton ordering region that disappears at the boundary of the exciton condensate phase, as well as a nonuniform spectral weight distribution over the Brillouin zone.
Article
Materials Science, Ceramics
Aleksandar Ciric, Zoran Ristic, Jovana Perisa, Zeljka Antic, Miroslav D. Dramicanin
Summary: Temperature sensing using photoluminescence of MgAl2O4:Cr3+ ceramic powder was investigated, showing high relative sensitivity in the physiological range. The intensity of emissions changes with temperature, allowing for temperature measurement.
CERAMICS INTERNATIONAL
(2021)
Article
Chemistry, Multidisciplinary
Zhichao Liu, Xue Yu, Qingpeng Peng, Xiaodie Zhu, Jianqiang Xiao, Jiangtao Xu, Shouxiang Jiang, Jianbei Qiu, Xuhui Xu
Summary: Researchers manipulated the matrix microstructure evolution of Y3Al5O12: Cr3+ material by adding Ga3+ ions, resulting in enhanced near-infrared zero-phonon line optical output at 688 nm. This discovery of enhancing near-infrared intensity through solid solution provides a new technique for optimizing near-infrared mechanoluminescent materials and opens up new possibilities for biological applications.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Inorganic & Nuclear
Jiajia Li, Xiao-Peng Sun, Shiqi Bi, Minglu Xu, Siyu Jia, Zheng Tang, Pengtao Ma, Jingping Wang, Jun Tao, Jingyang Niu
Summary: This study successfully integrated polyoxometalate (POM) anions into the Fe(II) spin crossover (SCO) system and found that POM anions play an effective role in regulating spin-state switching properties.
INORGANIC CHEMISTRY
(2022)
Article
Optics
Pratik S. Solanki, Sangeetha Balabhadra, Michael F. Reid, Jon-Paul R. Wells
Summary: This study presents high-resolution absorption and laser-excited fluorescence studies of KY3F10:Er3+ core-only nanoparticles. A total of 49 crystal-field energy levels distributed among 13 multiplets of the Er3+ ion have been deduced for the C4v point group symmetry center in this material. A parametrized, single-electron crystal-field calculation demonstrates an excellent approximation to the experimental data, with optimized crystal fit parameters comparable to the bulk KY3F10:Er3+ crystal.
JOURNAL OF LUMINESCENCE
(2022)
Article
Materials Science, Ceramics
Yan Hao, Yibo Zhang, Biao Liu, Kuibao Zhang
Summary: In this study, MgAl2O4:Cr3+ transparent ceramics were synthesized using hot press sintering techniques. The effect of the sintering aid Gd2O3 and its content on densification, microstructure, and optical properties was investigated. The addition of 0.8 wt% Gd2O3 resulted in a relative density of 99.29% and an optical transmittance of approximately 76% at 686 nm and 1446 nm. Increasing the Gd2O3 content led to smaller and more uniform grain size, as well as some pores with a size of around 1 μm. The ceramics with 4.0 wt% Gd2O3 exhibited a higher transmittance of 82% at 1446 nm. Gd2O3 also enhanced the quantum yield of Cr3+. The quantum yield of MgAl2O4:Cr3+ with 0.8 wt% Gd2O3 was approximately 0.175, which was 36% higher than that of ceramics without Gd2O3.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Ceramics
Hugo Spiridigliozzi, Luc Museur, Virgile Trannoy, Eric Gautron, Aleksei Kotlov, Eduard Feldbach, Frederic Schoenstein, Andrei Kanaev
Summary: Photoluminescence spectroscopy was used to study transparent MgAl2O4 spinel ceramics with grain sizes ranging from 100 to 300 nm. The results showed that the grain size affects the emission line shapes and intensities, particularly in the grain boundary regions. The emission of impurity Cr3+ ions became broad-band in these regions, which was attributed to the different local crystalline fields.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2023)
Article
Engineering, Environmental
M. Szymczak, P. Wozny, M. Runowski, M. Pieprz, V Lavin, L. Marciniak
Summary: This paper proposes a novel luminescent manometer that utilizes the spectral shift of Cr3+ ions in a specific material to measure pressure, and demonstrates its performance under different pressure ranges and temperature changes.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Biochemistry & Molecular Biology
Yonghao Li, Dipendra Dahal, Yi Pang
Summary: This study aimed to evaluate the fluorescence lifetime characteristics of newly developed NIR-emitting ESIPT dyes in a polar aprotic solvent. The results showed a two-component exponential decay in approximately 2-4 ns, which could be attributed to the excited keto tautomers. The probe structures significantly influenced both fluorescence lifetimes and fractional contributions of each component.
Article
Optics
Yan Hao, Shen Wang, Yibo Zhang
Summary: Transparent MgAl2O4: Cr3+ ceramics were synthesized using the hot pressing technique with LiF and Y2O3 as sinter aids. The study found that the relative density of the ceramic increased with the increase of Cr3+ content, Al3+ sites were occupied by Cr3+ ions, and Y3+ ions gathered at the grain boundary, leading to a decrease in optical transmittance.
JOURNAL OF LUMINESCENCE
(2022)
Article
Nanoscience & Nanotechnology
Subhabrata Ghosh, Jennifer A. Hollingsworth, Jose Ignacio Gallea, Somak Majumder, Joerg Enderlein, Alexey Chizhik
Summary: This article reports on the proof of principle measurements of a super-resolution imaging method based on the excitation field density-dependent lifetime modulation of semiconductor nanocrystals. Experimental results demonstrate that the method can achieve a spatial resolution of several tens of nanometers at moderate fluorescence excitation intensity.
Article
Pharmacology & Pharmacy
Lourdes Valdivia, Lorena Garcia-Hevia, Manuel Banobre-Lopez, Juan Gallo, Rafael Valiente, Monica Lopez Fanarraga
Summary: Solid lipid particles (SLPs) can effectively encapsulate and release therapeutic agents over long periods, reducing the number of metastatic foci in the lung. In vitro kinetic studies show two distinctive drug release profiles, providing the possibility for further clinical applications.
Article
Immunology
Sergi Lopez-Serrano, Carlos Neila-Ibanez, Mar Costa-Hurtado, Yasser Mahmmod, Jorge Martinez-Martinez, Ivan Jose Galindo-Cardiel, Ayub Darji, Fernando Rodriguez, Marina Sibila, Virginia Aragon
Summary: Vaccination of sows with a protein fragment from virulent G. parasuis resulted in improved immune response, increased weight gain, and lower body temperature in their offspring after challenge. Additionally, higher levels of surfactant protein D were observed in bronchoalveolar lavage of piglets from vaccinated sows, indicating a stronger immune response.
Article
Chemistry, Inorganic & Nuclear
Robin Turnbull, Javier Gonzalez-Platas, Fernando Rodriguez, Akun Liang, Catalin Popescu, Zhangzhen He, David Santamaria-Perez, Placida Rodriguez-Hernandez, Alfonso Munoz, Daniel Errandonea
Summary: The interplay between crystal structure and electronic structure in semiconductor materials is crucial for their potential technological applications. In this study, the high-pressure behavior of semiconducting antiferromagnetic material beta-Cu2V2O7 was investigated, revealing a pressure-induced phase transition to gamma-Cu2V2O7 below 4000 atm. The structural and electronic changes were studied using techniques such as single-crystal X-ray diffraction, absorption spectroscopy, and ab initio density functional theory calculations. These findings not only shed light on the potential barocaloric effects of beta-Cu2V2O7, but also suggest its significance as a multiferroic material with a decreased electronic band gap and a significant structural volume collapse.
INORGANIC CHEMISTRY
(2022)
Article
Chemistry, Physical
Camino Martin-Sanchez, Ana Sanchez-Iglesias, Paul Mulvaney, Luis M. Liz-Marzan, Fernando Rodriguez
Summary: The effects of nonhydrostatic pressure on the morphology and stability of gold nanorods and nanospheres were studied. It was found that solvent solidification had a negligible effect on nanospheres, while nanorods were broken into smaller particles under nonhydrostatic conditions. However, colloidal stability was maintained in all cases.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Article
Multidisciplinary Sciences
Virginia Monteseguro, Jose A. Barreda-Argueso, Javier Ruiz-Fuertes, Angelika D. Rosa, Holger L. Meyerheim, Tetsuo Irifune, Fernando Rodriguez
Summary: This study presents an advanced experimental and theoretical model to explain the correlation between the electronic and local structure of Eu2+ in EuS compound. The pressure evolution of the crystal field plays a major role in triggering the observed electronic transitions from semiconductor to half-metal and finally to the metallic state.
SCIENTIFIC REPORTS
(2022)
Editorial Material
Physics, Multidisciplinary
V. Monteseguro, J. Ruiz-Fuertes, J. A. Barreda-Argueso, H. L. Meyerheim, A. D. Rosa, F. Rodriguez
PHYSICAL REVIEW LETTERS
(2022)
Article
Chemistry, Multidisciplinary
Camino Martin-Sanchez, Ana Sanchez-Iglesias, Jose Antonio Barreda-Argueso, Alain Polian, Luis M. Liz-Marzan, Fernando Rodriguez
Summary: The mechanical properties and stability of metal nanoparticle colloids under high-pressure conditions are investigated using optical extinction spectroscopy and small-angle X-ray scattering (SAXS). SAXS allows in situ monitoring of the structural evolution of nanoparticles induced by pressure, including nanoparticle size, shape, and aggregation. The differences in behavior observed under hydrostatic and nonhydrostatic conditions are explained in terms of liquid solidification processes leading to nanoparticle aggregation. The impact of nanoparticle shape on the aggregation process is also discussed.
Article
Nanoscience & Nanotechnology
Elena Navarro-Palomares, Lorena Garcia-Hevia, Jesus Galan-Vidal, Alberto Gandarillas, Fe Garcia-Reija, Ana Sanchez-Iglesias, Luis M. Liz-Marzan, Rafael Valiente, Monica L. Fanarraga
Summary: In this study, a high-affinity protein-ligand was designed using Shiga toxin to target specific receptors in head and neck tumors. Functionalized gold nanorods were able to selectively kill targeted cancer cells after laser radiation. This research demonstrates the potential of using natural ligands to guide nanomedicines for the treatment of aggressive localized cancers.
INTERNATIONAL JOURNAL OF NANOMEDICINE
(2022)
Article
Immunology
Elena Blazquez, Joan Pujols, Fernando Rodriguez, Joaquim Segales, Rosa Rosell, Joy Campbell, Javier Polo
Summary: The potential benefits of feeding spray-dried porcine plasma (SDPP) to pigs infected with African swine fever virus (ASFV) were evaluated in this study. Contact exposed pigs fed SDPP had delayed ASFV transmission and reduced virus load compared to conventionally fed pigs. This may be due to enhanced specific T-cell priming after the first ASFV-exposure.
Article
Veterinary Sciences
Marek Walczak, Krzesimir Szymankiewicz, Fernando Rodriguez, Jordi Argilaguet, Boris Gavrilov, Jacek Zmudzki, Maciej Kochanowski, Malgorzata Juszkiewicz, Anna Szczotka-Bochniarz
Summary: This study investigated the molecular contamination of an animal facility during and after infection with highly pathogenic African swine fever virus. The results showed that maintaining the facility with mechanical cleaning and using personal protection and hand disinfection can efficiently minimize the risk of virus spread. The findings suggest that if stable environmental conditions are assured, the time needed before introducing new herds into previously ASF-affected farm facilities could be shortened, reducing economic losses caused by the disease outbreak.
JOURNAL OF VETERINARY RESEARCH
(2023)
Article
Materials Science, Multidisciplinary
A. Liang, F. Rodriguez, P. Rodriguez-Hernandez, A. Munoz, R. Turnbull, D. Errandonea
Summary: High-pressure optical-absorption measurements were conducted on polycrystalline Co(IO3)(2) samples to investigate the influence of pressure on the electronic properties and fundamental band gap of Co(IO3)(2). The results revealed unusual behavior in the electron-lattice coupling of Co(IO3)(2), and the d-d transitions were explained by changes in the CoO6 octahedral units.
Article
Virology
Elizabeth Ramirez-Medina, Elizabeth Vuono, Ayushi Rai, Sarah Pruitt, Nallely Espinoza, Lauro Velazquez-Salinas, Sonia Pina-Pedrero, James Zhu, Fernando Rodriguez, Manuel Borca, Douglas P. Gladue
Summary: African swine fever (ASF) is a major pandemic affecting the swine industry and no commercial vaccines are available. This study shows that deletion of the E184L gene from the ASFV-G can reduce the virus virulence and animals surviving the infection with ASFV-G-Delta E184L are protected from developing ASF after challenge. These results support the potential use of the E184L deletion for the development of vaccines able to differentiate infected from vaccinated animals (DIVA).
JOURNAL OF VIROLOGY
(2022)
Article
Materials Science, Multidisciplinary
Enrique Jara, Rafael Valiente, Jesus Gonzalez, Jose Ignacio Espeso, Nicholas Khaidukov, Fernando Rodriguez
Summary: This study presents a spectroscopic investigation of doubly Mn4+ and Cr3+-doped Sr4Al14O25 to evaluate its potential as a red emitting phosphor. The results show that Sr4Al14O25 exhibits a ruby-like emission due to the strong crystal field effect of Cr3+. The photoluminescence and excitation spectra of Sr4Al14O25:Mn4+,Cr3+ reveal a non-centrosymmetric distorted Al4 site in the crystal structure. Additionally, the study highlights the effects of pressure and temperature on the photoluminescence intensity and lifetime of the material.
JOURNAL OF MATERIALS CHEMISTRY C
(2022)
Article
Chemistry, Multidisciplinary
Andrea Diego-Rucabado, Marina T. Candela, Fernando Aguado, Jesus Gonzalez, Eugenio Gomez, Rafael Valiente, Israel Cano, Rosa Martin-Rodriguez
Summary: The research focused on the catalytic activity of TiO2 nanocrystals, revealing that calcination increases the formation of rutile form, and different transition metal dopants enhance the photocatalytic performance. By using NCs as active additives, a smart photocatalytic surface with self-cleaning coating and corrosion protection function was developed.
REACTION CHEMISTRY & ENGINEERING
(2021)
Article
Optics
R. B. Adamov, G. A. Melentev, I. V. Sedova, S. V. Sorokin, G. V. Klimko, I. S. Makhov, D. A. Firsov, V. A. Shalygin
Summary: This study investigates the THz luminescence in doped nanostructures with GaAs/AlGaAs quantum wells under interband optical pumping. The results show that the spatial separation of donors and acceptors can greatly enhance the integrated intensity of THz emission.
JOURNAL OF LUMINESCENCE
(2024)
Article
Optics
Yanru Li, Lei Zhong, Sha Jiang, Yutong Wang, Binyao Huang, Guotao Xiang, Li Li, Yongjie Wang, Chuan Jing, Xianju Zhou
Summary: In this study, a ratiometric luminescent thermometry based on dual-emission centers was developed using co-doped CaNb2O6 phosphors with Bi3+ and Pr3+. The obtained samples exhibited good thermosensitive and thermochromic characteristics, with a maximum absolute sensitivity of 0.09 K-1 @ 528 K and a maximum relative sensitivity of 2.17 % K-1 @ 453 K.
JOURNAL OF LUMINESCENCE
(2024)
Article
Optics
Yujing Gong, Yeqing Wang, Zhiyuan Wang, Yijian Sun, Yi Yu
Summary: Single crystals of Dy3+ single-doped and Dy3+/Tb3+ co-doped CaYAlO4 were grown and analyzed. The incorporation of Tb3+ resulted in increased absorption and emission cross sections. The fluorescence lifetimes and branching ratios of the yellow emission were affected by the presence of Tb3+. The deactivation effect of Tb3+ ions and energy transfer mechanism were also discussed.
JOURNAL OF LUMINESCENCE
(2024)
Article
Optics
Lu Chen, Zhuangzhuang Ma, Jian Chen, Wang Guo
Summary: This study focuses on enhancing the thermal robustness of phosphor converter materials by preparing composite ceramics of YAG:Ce combined with high-thermal-conductivity MgO. The composite ceramics showed high density and thermal conductivity at the optimum temperature of 1400℃. Stable laser-driven white light was obtained under blue laser excitation.
JOURNAL OF LUMINESCENCE
(2024)
Article
Optics
Yuwei Wu, Chunhui Niu, Lei Wang, Mingqing Yang, Shiyu Zhang
Summary: Er3+-doped germanate-tellurite glasses were prepared and their structure, luminescent, and temperature-sensing properties were studied. The glass exhibited large values of O2 and O6 and its luminescence intensity varied with temperature.
JOURNAL OF LUMINESCENCE
(2024)
Article
Optics
Kensei Ichiba, Takumi Kato, Kenichi Watanabe, Yuma Takebuchi, Daisuke Nakauchi, Noriaki Kawaguchi, Takayuki Yanagida
Summary: In this study, Eu-doped YVO4 single crystals with different concentrations were fabricated to evaluate their photoluminescence and scintillation properties. The results showed that the samples doped with Eu exhibited emission peaks due to 4f-4f transitions in PL and scintillation spectra. Based on the pulse height spectra, the light yield of the Eu-doped samples increased with increasing Eu concentration, while the afterglow level decreased.
JOURNAL OF LUMINESCENCE
(2024)
Article
Optics
Daiwen Xiao, Hei-Yui Kai, Anjun Huang, Menglin Song, Ka-Leung Wong, Peter A. Tanner
Summary: The emission spectra of Cs2NaEuCl6 nanoparticles synthesized by the hot injection method are explained. The dispersion of the nanoparticles in alkane solvents in the experiment allows the determination of the magnetic dipole radiative rate for the D-5(0) -F-7(1) channel in vacuum, which is in agreement with the calculated value.
JOURNAL OF LUMINESCENCE
(2024)
Article
Optics
Italia V. Barbosa, Geraldine Dantelle, Alain Ibanez, Lauro J. Q. Maia
Summary: The thermal response and luminescence properties of different oxide matrices were evaluated to design more accurate thermal probes. It was found that thermal probes emitting in BW-II provide better thermal sensing with higher signal-to-noise ratio. Additionally, doping Nd3+ in Y2O3 matrix maximizes luminescence intensity, making it a promising matrix for thermal sensing.
JOURNAL OF LUMINESCENCE
(2024)
Article
Optics
Xin Li, Yu Zhang, Hongrui Ren, Lunlong Xie, Yinsheng Di, Mengqing Han, Zhaohui Bai, Quansheng Liu, Liangliang Zhang, Jiahua Zhang
Summary: This study successfully prepared phosphor samples based on Ca3-xLuxSc2-xMgxSi3O12:Ce3+ and investigated their luminescence properties. With the increase in Lu-Mg concentration, the peak of the sample redshifted, but the thermal stability gradually decreased. The LD devices made from CLSMS:Ce3+ fluorescent materials showed a decrease in cyan-green light and an increase in red light as the Lu-Mg concentration increased.
JOURNAL OF LUMINESCENCE
(2024)
Article
Optics
Tim Pier, Julia Hopster, Thomas Juestel
Summary: This study investigates and reports on several samples of cerium-activated gallium-based garnet phosphors. The optimal activator concentration was found to be 1 atom-%. The size of non-emitting lanthanide ions and the molar concentration of cerium strongly influenced the crystal field splitting, which in turn shaped the excitation and emission wavelengths.
JOURNAL OF LUMINESCENCE
(2024)
Article
Optics
Guijie Zhao, Wei Shi, Xin Xin, Fengcai Ma, Yongqing Li
Summary: This study reveals for the first time the proton transfer pathways and changes in the photophysical properties of P-TNS with three intramolecular hydrogen bonds. The reaction mechanism and driving force for the proton transfer process are explained through analysis of potential energy surface, frontier molecular orbitals, and hydrogen bond parameters, among others.
JOURNAL OF LUMINESCENCE
(2024)
Article
Optics
Li He, Jinshu Huang, Zhengce An, Haozhang Huang, Yu Zhao, Kexin Zhong, Bo Zhou
Summary: In this study, we designed a NaYF4:Yb3+/Tm3+@NaYF4 core-shell nanostructure to achieve thermochromic upconversion and high thermal sensitivity. We found that the blue upconversion emission of Tm3+ decreased while the deep-red emission increased with elevating temperature. The sample also showed a gradual emission color change from blue to purplish-red, and the optimal relative sensitivity reached 2.79% K-1.
JOURNAL OF LUMINESCENCE
(2024)
Article
Optics
Rupesh A. Talewar
Summary: A series of Li2TiO3 phosphors doped with Mn4+ and codoped with Mn4+ and Er3+ were synthesized, which demonstrated the ability of Mn4+ ions to absorb UV-Vis photons and subsequently transfer energy to Er3+ ions, resulting in the emission of near-infrared light. These materials have the potential to enhance the absorption efficiency of Er3+-based luminescent materials.
JOURNAL OF LUMINESCENCE
(2024)
Article
Optics
Xingyuan Ma, Jianfeng Li
Summary: Carbon quantum dots (CQDs) with tunable photoluminescence properties have been synthesized using suitable carbon and dopant sources in an aqueous system. The synthesized CQDs exhibited blue, green, yellow, and red emissions, and solid-state luminescence was achieved through the preparation of solid-state fluorescent films and phosphors. This study provides important technical support for the future development of CQDs synthesis.
JOURNAL OF LUMINESCENCE
(2024)
Article
Optics
De Bin Fu, Yang Bing Xu, Yu Teng Zhang, Shan Ting Liu, Xiao Fei Yang, Sheng Hua Liu
Summary: A pair of new chiral molecules, (S)-4 and (R)-4, have been designed and synthesized by introducing valine-containing groups at symmetrical positions on the periphery of an indolo[3,2-b]carbazole unit. These molecules exhibit aggregation-induced circular dichroism (AICD) properties in DMF/water mixtures, and in a mixture with 99% water fraction, they show strong, mirror-image, blue circularly polarized luminescence (CPL) signals.
JOURNAL OF LUMINESCENCE
(2024)
