Article
Radiology, Nuclear Medicine & Medical Imaging
David Zopfs, Simon Lennartz, Nuran Abdullayev, Thorsten Lichtenstein, Kai Roman Laukamp, Robert Peter Reimer, Christoph Kabbasch, Jan Borggrefe, Marc Schlamann, Victor Neuhaus, Nils Grosse Hokamp
Summary: This study defined generally applicable window settings for low-keV VMI in spectral detector CTA of the head and neck, based on modeling methods, to improve image quality.
QUANTITATIVE IMAGING IN MEDICINE AND SURGERY
(2021)
Article
Materials Science, Ceramics
Guotao Xiang, Menglin Yang, Yongxi Ding, Hongxiu Wu, Lu Yao, Yongjie Wang, Xianju Zhou, Li Li, Li Ma, Xiaojun Wang, Jiahua Zhang
Summary: In this study, CaSc2O4: Nd3+ nanorods were found to be an excellent optical thermometer based on the fluorescence intensity ratio (FIR). They exhibited superior sensitivity and temperature resolution, with a temperature increment of 7 K after laser radiation. These nanorods can be used for real-time temperature measurement in deep-tissue photothermal therapy.
CERAMICS INTERNATIONAL
(2023)
Article
Computer Science, Information Systems
Yile Fang, Yibing Zhang, Michael C. Lun, Changqing Li
Summary: X-ray luminescence computed tomography (XLCT) combines the high spatial resolution of x-ray imaging with the high measurement sensitivity of optical imaging to image luminescent targets in deep tissues. A new superfast XLCT scan scheme based on a photon counter detector and fly-scanning method has been introduced, allowing for faster scanning speed and simultaneous XLCT and parallel beam CT imaging.
Article
Radiology, Nuclear Medicine & Medical Imaging
Ronald Booij, Marcel van Straten, Andreas Wimmer, Ricardo P. J. Budde
Summary: The study evaluated the impact of breathing state on the accuracy of a 3D camera for body contour detection and patient positioning in thoracic CT. Results showed that acquiring camera images and subsequent CT scans in the same breathing state leads to accurate and precise patient positioning. It is recommended to obtain expiratory planning images when performing a thoracic CT scan in both inspiratory and expiratory breathing states.
EUROPEAN RADIOLOGY
(2022)
Article
Engineering, Electrical & Electronic
Jeremie Pillon, Matthieu Collignon, Maxime Rattier, Francois Louf, Emmanuelle Peter, Pierre-Alain Boucard, Herve C. Lefevre
Summary: The study focuses on the precise topological reconstruction of the sensing coil of a fiber-optic gyroscope using X-ray computed tomography. It evaluates the quality of the winding, quantifies crossovers and layer transition fibers, and highlights winding defects.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2021)
Article
Energy & Fuels
Shahabeddin Dayani, Henning Markoetter, Anita Schmidt, Martinus Putra Widjaja, Giovanni Bruno
Summary: The effectiveness of several X-ray computer tomography techniques for studying commercial batteries is demonstrated in this paper. General guidelines are provided for selecting suitable imaging equipment and parameters for investigations of lithium-ion batteries at different length scales. Safety mechanisms, manufacturing inconsistencies, defects, and inhomogeneity in batteries are illustrated and quantified. The relationship between beam energy, sample-detector distance, and contrast retrieved from attenuation and phase shift is examined using Synchrotron XCT.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Radiology, Nuclear Medicine & Medical Imaging
Jinhua Wang, Xin Sui, Ruijie Zhao, Huayang Du, Jiaru Wang, Yun Wang, Ruiyao Qin, Xiaoping Lu, Zhuangfei Ma, Yinghao Xu, Zhengyu Jin, Lan Song, Wei Song
Summary: Low-dose computed tomography (LDCT) with deep learning reconstruction (DLR) can improve image quality and assess lung parenchyma effectively. LDCT has significantly lower radiation dose compared to regular-dose CT (RDCT). LDCT DLR has better image quality and performs well in evaluating pulmonary lesions, except for subsolid nodules and decreased lung attenuation, compared to RDCT.
EUROPEAN RADIOLOGY
(2023)
Article
Radiology, Nuclear Medicine & Medical Imaging
Stefanie J. Bette, Franziska M. Braun, Mark Haerting, Josua A. Decker, Jan H. Luitjens, Christian Scheurig-Muenkler, Thomas J. Kroencke, Florian Schwarz
Summary: In this study comparing PCD-CT and EID-CT in mouse specimens, PCD-CT demonstrated lower image noise, higher SNR, and better edge sharpness compared to EID-CT. Radiologists consistently preferred PCD-CT for visualizing bone details, even in SNR-matched pairs.
EUROPEAN RADIOLOGY
(2022)
Article
Radiology, Nuclear Medicine & Medical Imaging
Lenhard Pennig, David Zopfs, Roman Gertz, Johannes Bremm, Charlotte Zaeske, Nils Grosse Hokamp, Erkan Celik, Lukas Goertz, Marcel Langenbach, Thorsten Persigehl, Amit Gupta, Jan Borggrefe, Simon Lennartz, Kai Roman Laukamp
Summary: Virtual monoenergetic images (VMI) and metal artifact reduction (MAR) algorithms derived from spectral detector CT (SDCT) of the chest effectively reduce artifacts from cardiac implantable electronic devices (CIEDs), improving diagnostic assessment of surrounding structures.
EUROPEAN RADIOLOGY
(2021)
Article
Radiology, Nuclear Medicine & Medical Imaging
Alexey Surov, Hans Jonas Meyer, Mattes Hinnerichs, Vincenzo Ferraro, Vanja Zeremski, Dimitrios Mougiakakos, Sylvia Saalfeld, Andreas Wienke, Alexandra Strobel, Denise Wolleschak
Summary: Objective body composition assessment derived from cross-sectional imaging has shown promising results as a prognostic biomarker in several tumor entities. In this study, we aimed to analyze the role of low skeletal muscle mass and fat areas for prognosis of dose-limiting toxicity and treatment response in patients with primary central nervous system lymphoma.
EUROPEAN RADIOLOGY
(2023)
Article
Radiology, Nuclear Medicine & Medical Imaging
Uttam K. Bodanapally, Thorsten R. Fleiter, Bizhan Aarabi, Ajay Malhotra, Dheeraj Gandhi
Summary: This technical note introduces a new DECT protocol and iodine map reconstruction technique for visualizing membranes in chronic subdural hematoma. Results showed that all 50 hematomas had an enhancing external membrane, with 13 having an incomplete internal membrane and 23 having a complete internal membrane. A spandrel sign indicating partial or complete formation of the internal membrane was observed in 36 hematomas.
EUROPEAN RADIOLOGY
(2023)
Article
Radiology, Nuclear Medicine & Medical Imaging
D. Zopfs, M. Rinneburger, D. Pinto dos Santos, R. P. Reimer, K. R. Laukamp, D. Maintz, S. Lennartz, N. Grosse Hokamp
Summary: This study demonstrated that simple attenuation measurements using VNC imaging can predict the presence of anemia and differentiate between healthy individuals and those with varying degrees of anemia. A linear relationship between HbS and attenuation on VNC suggests a potential for accurate prediction of anemia based on contrast-enhanced SDCT examinations.
EUROPEAN RADIOLOGY
(2021)
Article
Radiology, Nuclear Medicine & Medical Imaging
Claes Hakansson, Gustav Torisson, Elisabet Londos, Oskar Hansson, Isabella M. Bjorkman-Burtscher, Danielle van Westen
Summary: This study found that introducing a template for radiological reporting of NECT in the primary care diagnostic work up of cognitive impairment significantly increased the mentioning of MTA, WMC, and GCA in radiology reports, as well as the percentage of reports where all parameters were mentioned. The findings suggest that using contextual radiological assessment with VRS could increase the reporting frequency of radiology findings in the diagnostic work up of cognitive impairment, but compliance with templates may be difficult to endorse.
EUROPEAN RADIOLOGY
(2021)
Article
Radiology, Nuclear Medicine & Medical Imaging
Pauline Didion, Amandine Crombe, Alexia Dabadie, Sophie Hassid, Mylene Seux, Guillaume Gorincour, Nathan Banaste
Summary: In this study, it was found that 59.4% of children with multiple trauma had injuries identified, with a further 8.3% having additional injuries detected on second reading, particularly in children aged 4 or younger, with multiple injured body parts or multiple injuries. The study also highlighted the importance of carefully considering the indication for whole-body CT due to potential risks like active extravasation or pseudoaneurysm in a small percentage of cases.
EUROPEAN RADIOLOGY
(2022)
Article
Materials Science, Ceramics
Faheem Muhammed, Tania Lavaggi, Laure Moretti, Suresh Advani, John W. Gillespie
Summary: Carbon-carbon composites (CCCs), as carbon-fiber reinforced materials, exhibit excellent thermomechanical properties under extreme environmental conditions. In order to reduce cost and processing time, a 7-hour pyrolytic schedule was proposed and successfully achieved for a thermoset benzoxazine-derived CCCs through an optimization process. The optimization involved using a multi-stage nth-order kinetics model to limit individual reaction rates and prevent layer separations and fiber rupture during thermal processing. X-Ray 3D Computed Tomography was used to evaluate the modified results post heat treatment, ensuring a fully interconnected porous microstructure with minimal closed void volume. A 1D model was also proposed to predict internal pressure generated during the final ramp, providing upper bounds for the optimization protocol in terms of sample thicknesses and applied ramp rates.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Applied
Lin Liu, Kexin Yu, Liyan Ming, Yangyang Sheng, Shenghui Zheng, Liang Song, Junpeng Shi, Yun Zhang
Summary: Ultraviolet (UV) persistent luminescent materials (PLMs) have gained significant attention in recent years due to their potential biological applications. However, the design and development of excellent UV PLMs remain challenging due to the lack of suitable emitters and hosts.
JOURNAL OF RARE EARTHS
(2022)
Article
Chemistry, Applied
Xiaoyan Fu, Shenghui Zheng, Yanfeng Meng, Wenzhi Sun, Hongwu Zhang
Summary: A yellow emitting long afterglow luminescence material SrSc2O4:Pr3+ was successfully prepared. It exhibits multiple long afterglow luminescence peaks corresponding to Pr3+ f-f transitions, with the afterglow emission falling in the yellow region. The optimal sample doped with 1 at% Pr3+ shows an afterglow luminescence persisting for over 3 hours. Thermoluminescence results indicate the formation of three traps caused by the addition of Pr3+ ions, with the trap density reaching its maximum at 1 at% Pr3+ doping, resulting in the longest afterglow luminescence.
JOURNAL OF RARE EARTHS
(2022)
Article
Materials Science, Ceramics
Wenzhi Sun, Mengmeng Jiao, Liyan Fan, Ruijuan Zhang, Xinxin Zhang, Hongwu Zhang
Summary: BaZnGeO4:Bi3+ is a novel bright orange persistent luminescence phosphor with improved emission properties by introducing defects. It exhibits good thermal stability and the bright orange persistent luminescence can be observed by the naked eye for 1 hour.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2022)
Article
Environmental Sciences
Penghui Li, Jingfu Liu, Hongwu Zhang
Summary: The environmental behavior of AgNPs in natural freshwater and brackish water is primarily affected by water chemistry. MPs can serve as carriers for AgNP transport in natural aquatic environments. Water chemistry and MPs types play crucial roles in the interaction between MPs and AgNPs.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Optics
Wei Meng, Pengbo Cai, Xiaoyan Fu, Hongwu Zhang
Summary: In this paper, sensitive mechanoluminescence phosphors Sr3Al2O5Cl2:Eu2+, Tm3+ were developed and the effect of co-doped Tm3+ ions on ML properties was investigated. The results showed that the ML emission originated from Eu2+ emitting center and the density of shallow traps increased greatly with the increase of co-doped Tm3+ ions, resulting in strong sensitive ML intensity. Additionally, deep traps could provide long time stable ML emission under strong compressive load. These findings indicate the great potential of Sr3Al2O5Cl2:Eu2+, Tm3+ phosphors in the detection of weak stress and long time stable ML.
JOURNAL OF LUMINESCENCE
(2022)
Article
Chemistry, Applied
Wenzhi Sun, Tao Tan, Jize Cai, Hongwu Zhang
Summary: Bright yellow-emitting long persistent luminescence materials were developed through high temperature solid-state reaction, with the addition of Zr4+, Ho3+, and Er3+ for improved energy storage ability. Optimal LPL performance was observed in SAO:Mn2+,Ho3+, lasting for 3 hours and visible to the naked eye.
JOURNAL OF RARE EARTHS
(2022)
Article
Neurosciences
Jiaqi Li, Shenghui Zheng, Yuhao Dong, Hao Xu, Yueyan Zhu, Jie Weng, Daijing Sun, Shunying Wang, Lei Xiao, Yan Jiang
Summary: This study found that SETDB1 represses Htr3a transcription via RMER21B-mediated distal chromatin interaction in the embryonic ganglionic eminence, regulating the development of cortical Htr3a+ inhibitory neurons and mood behaviors.
BIOLOGICAL PSYCHIATRY
(2023)
Article
Chemistry, Applied
Huimin Jiang, Lin Liu, Kexin Yu, Xianggui Yin, Shenghui Zheng, Liang Song, Junpeng Shi, Yun Zhang
Summary: Near-infrared persistent luminescence materials (NIR PLMs) can emit long-lasting luminescence after removal of excitation light, avoiding background fluorescence interference. Researchers have reported a novel NIR PLM with high excitation efficiency performance in the biological window, which is expected to have significant biomedical applications in deep tissues.
JOURNAL OF RARE EARTHS
(2022)
Article
Optics
Wei Meng, Pengbo Cai, Xiaoyan Fu, Hongwu Zhang
Summary: In this paper, a near-infrared luminescent material LiGaSiO4:Cr3+ with triple temperature detection function was successfully synthesized. The results showed that the material exhibited excellent near-infrared luminescence performance and achieved high temperature sensing sensitivity and accuracy through three fluorescence intensity ratio models. The study indicated that LiGaSiO4:Cr3+ has great potential in the application of temperature sensing.
JOURNAL OF LUMINESCENCE
(2022)
Article
Materials Science, Ceramics
Wenzhi Sun, Liyan Fan, Xinxin Zhang, Denghu Wei, Mengmeng Jiao, Wenlong Xu, Hongwu Zhang
Summary: The properties of orange-emitting SLNMPO-0.5:Eu2+ and SLNMPO-1:Eu2+ phosphors with broad emission bands were investigated. It was found that they exhibited better photoluminescence properties and more red emissions compared to SMPO:Eu2+. These phosphors have the potential to be used in high-quality warm white light-emitting diode (WLED) devices.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2023)
Article
Materials Science, Ceramics
Tongyan Lin, Zewen Liu, Naihui Chen, Runyao Liu, Jiaxu Zhang, Pengbo Cai, Wei Meng, An Xie, Xiaoyan Fu, Hongwu Zhang
Summary: In this study, X-ray induced color-tunable long afterglow luminescent material Ca9-xTb(PO4)7:xMn2+ was synthesized and the effects of Mn2+ doping concentration on the properties of the samples were investigated. Efficient energy transfer between Tb3+ and Mn2+ under X-ray excitation was observed, contributing to tunable green-red emission. Increasing Mn2+ concentration led to a decrease in green afterglow emissions of Tb3+ and an increase in red afterglow emissions of Mn2+, resulting in enhanced long afterglow luminescence properties.
CERAMICS INTERNATIONAL
(2023)
Article
Optics
Zewen Liu, Tongyan Lin, Naihui Chen, Wei Meng, Pengbo Cai, Runyao Liu, Jiaxu Zhang, Xiaoyan Fu, Hongwu Zhang
Summary: We have developed a novel strategy to design efficient X-ray-induced long afterglow luminescent materials. By using Eu3+ ions as trap creators and emitting centers, and scintillator Bi4Ge3O12 as the host to absorb X-ray efficiently, we obtained excellent X-ray induced red long afterglow luminescence from Bi4Ge3O12:Eu3+ material. The luminescence persisted for more than 5400 s and could still be observed by naked eyes. This strategy provides a pathway for the development of high-performance X-ray induced long afterglow phosphors.
JOURNAL OF LUMINESCENCE
(2023)
Article
Chemistry, Physical
Wenzhi Sun, Tingting Zhao, Shuya Wang, Denghu Wei, Mengmeng Jiao, Hongwu Zhang
Summary: In this study, yellow-orange emitting phosphors Sr9-xCaxMg1.5(PO4)(7):0.05Eu(2+) and Sr9-yBayMg1.5(PO4)(7):0.05Eu(2+) were reported. These phosphors can be efficiently excited by blue light and n-UV light. The crystal structure, photoluminescence spectra, fluorescence decay curves, and thermal stability were investigated. The introduction of Ca2+ or Ba2+ enhanced the thermal stability of the phosphors.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Article
Chemistry, Inorganic & Nuclear
Song Li, Zhongxian Qiu, Yahuan Mo, Hongwu Zhang, Hongzhou Lian, Jilin Zhang, Shixun Lian
Summary: Mixed-valence Eu2+/3+-activated phosphors with controllable multicolor emissions and linear response to irradiation dose were successfully prepared in this work. The phosphors have great potential for multi-level anti-counterfeiting and optical thermometry applications.
DALTON TRANSACTIONS
(2022)
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)