Article
Chemistry, Multidisciplinary
Pengfei Yu, Tingquan Shao, Wenfei Liu, Pandeng Gao, Biru Jiang, Shiwei Zhao, Zhao Han, Xuanbing Gu, Jiahong Zheng
Summary: In this study, CdMnTe nanopowders with uniform shapes were successfully prepared through a hydrothermal route using 3-mercaptopropionic acid as the stabilizer and modifier. Various experimental conditions were investigated to understand their effects on the phase composition and formation mechanism of the nanopowders. The results showed that the CdMnTe nanopowders had a pure phase with high crystallinity and a wider band gap, indicating a clear quantum confinement effect.
Article
Environmental Studies
Wan Ibtisam Wan Omar, Chin Fhong Soon, Mohd Khairul Ahmad, Masaru Shimomura
Summary: The study successfully synthesized N-doped graphene quantum dots (N-GQDs) by hydrothermal method, and analyzed their optical and electronic properties through experimental and theoretical calculations, showing that N-GQDs are non-toxic to cells with high viability.
ENERGY & ENVIRONMENT
(2021)
Article
Materials Science, Multidisciplinary
Anmol Arora, Kriti Sharma, S. K. Tripathi
Summary: Hydrothermal synthesis technique was used to synthesize MoSe2 nanoflowers from different molybdenum precursors. The samples were characterized and further processed to synthesize MoSe2 quantum dots. Thin films of the materials were also synthesized and their transport characteristics were analyzed. The electrical characteristics of MoSe2 were found to be influenced by the molybdenum precursors used.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2023)
Article
Chemistry, Multidisciplinary
Barbara La Ferla, Barbara Vercelli
Summary: The controllable synthesis of red-emitting carbon quantum dots (r-CDs) is of fundamental importance for their application in advanced medical large-scale applications. In this study, we present an experimental investigation on the synthesis and post-synthesis purification treatments of r-CDs. We propose three synthetic strategies and observe challenges in the efficiency, yield, and separation of r-CDs using different precursors.
Article
Engineering, Environmental
Somayeh Marouzi, Majid Darroudi, Azadeh Hekmat, Kayvan Sadri, Reza Kazemi Oskuee
Summary: This study investigated the formation of nutrient Chia plant as a carbon source for the production of CQDs through a hydrothermal strategy, as well as analyzing their biological distribution and cytotoxicity. The obtained CQDs showed satisfactory fluorescence and quantum yield under optimal conditions, while confirming their non-toxicity and colloidal stability in various physiological conditions. Additionally, the biological distribution of CQDs was tested through in vivo experiments in rats, demonstrating their cost-effectiveness, biocompatibility, and bioavailability for potential medical imaging applications.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Chemistry, Physical
Ting Chen, Yulei Ren, Yanqiao Xu, Weihui Jiang, Lianjun Wang, Wan Jiang, Zhixiang Xie
Summary: Synthesis of water-soluble I-III-VI type quantum dots (QDs) with high luminescence performance remains a challenge, but the study successfully prepared water-soluble Ag-In-Zn-S (AIZS) QDs using room temperature ionic liquids (RTILs) assisted hydrothermal method. The RTIL [Mim]BF4 played an important role in the phase structure, morphology, and optical properties of the AIZS QDs, resulting in improved quantum yield and successful passivation of trap states. Moreover, a high-performance white light-emitting diode (WLED) based on AIZS QDs was fabricated, showing promising prospects for application in photoelectric devices.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Review
Chemistry, Inorganic & Nuclear
Huaxin Liu, Xue Zhong, Qing Pan, Yi Zhang, Wentao Deng, Guoqiang Zou, Hongshuai Hou, Xiaobo Ji
Summary: Among the carbon nanomaterials family, fluorescent carbon dots have emerged as significant members with outstanding characteristics and extensive applications. Despite the development of many synthesis strategies, achieving controllable synthesis remains challenging.
COORDINATION CHEMISTRY REVIEWS
(2024)
Article
Materials Science, Multidisciplinary
Y. X. Pang, X. Li, X. Zhang, J. X. Yeoh, C. Wong, S. Manickam, Y. Yan, T. Wu, C. H. Pang
Summary: This article reviews the recent progress in carbon-based quantum dots (QDs) research, with a focus on the application of supercritical fluids (SCFs) technology in the synthesis process. The influence of precursor types and synthesis routes on the characteristics of the as-produced QDs is analyzed, and a summary of the synthesis methods and types of carbon-based QDs is provided. Additionally, recent applications of carbon-based QDs in biomedical and pharmaceutical, electronics and energy storage, as well as materials engineering are summarized to highlight their future potential.
MATERIALS TODAY PHYSICS
(2022)
Article
Chemistry, Multidisciplinary
Kunio Shimura, TaeGi Lee, Tatsuya Ito, DaeGwi Kim
Summary: The formation of CdS shell can be controlled by varying the Te/Cd ratio of the precursor solution during the synthesis of CdTe and CdTe/CdS QDs, allowing for the selective synthesis of QDs with the same PL energy but different PL decay times.
BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN
(2021)
Review
Optics
Jian Zhang, Shaohui Zhang, Yule Zhang, Omar A. Al-Hartomy, Swelm Wageh, Abdullah G. Al-Sehemi, Yabin Hao, Lingfeng Gao, Hao Wang, Han Zhang
Summary: This review provides a comprehensive evaluation of the optoelectronic application levels of semiconductor quantum dots (SQDs), perovskite quantum dots (PQDs), and carbon quantum dots (CDs), as well as a detailed summary of photocatalysis. The article discusses the compositions and optoelectronic properties of the three types of quantum dots, compares their strengths and weaknesses, demonstrates their flourishing development in various optoelectronic applications, and identifies bottlenecks and opportunities for future breakthroughs.
LASER & PHOTONICS REVIEWS
(2023)
Article
Chemistry, Physical
Chenhan Zhang, Zhihua Ying, Yuan Jiang, Haiyang Wang, Xuebin Zhou, Weipeng Xuan, Peng Zheng
Summary: Hydrophilic and hydrophobic carbon dots were synthesized using a solvent-controlled method. By adjusting the doping of nitrogen and fluorine elements in the reaction solvent, the hydrophilicity or hydrophobicity of the carbon dots could be regulated. The sensitivity of the hydrophobic carbon dots to water was also studied. In addition, amphiphilic carbon dots were prepared by varying the volume ratio of water/DMF and their hydrophilicity and hydrophobicity were further investigated.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Article
Chemistry, Physical
Yuanhong Chen, Ting Chen, Zhe Qin, Zhixiang Xie, Mengbiao Liang, Youpeng Li, Jian Lin
Summary: Rapid synthesis of AgInS2 quantum dots (AIS QDs) with high quantum yield and crystallinity in aqueous phase was achieved using a microwave-assisted hydrothermal method. The luminescence properties of the AIS QDs were enhanced by employing an ionic liquid as a wave absorber. The spectral tunability and luminescence intensity were optimized by adjusting the reaction conditions, and further improved by coating a ZnS shell on the QDs. The AIS QDs-based white light emitting diodes (WLEDs) exhibited excellent color rendering index and luminous efficiency.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Qi Hu, Yi Fang, Zhao Du, Zhonglu Guo, Zhenya Liu, Yang Huang, Jing Lin, Chengchun Tang
Summary: This study successfully prepared GQDs/BNNs composites with excellent microwave absorption properties, and discussed the relationship between microwave absorption performance and the concentration of GQDs in the composites. The results showed that GQDs/BNNs had strong absorption capabilities.
Article
Chemistry, Analytical
Dan Yang, Liwen Chen, Le Wang, Zhongjie Cui, Zhuoqi Wen, Bobo Yang, Haiyang He, Shiliang Mei, Wanlu Zhang, Fengxian Xie, Jiong Ma, Ruiqian Guo
Summary: In this study, water-soluble VS2 quantum dots were prepared with favorable properties and potential for cellular imaging.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Chemistry, Multidisciplinary
Karthiga Anpalagan, Jimsheena Valiyakath Karakkat, Raz Jelinek, Nila Nandha Kadamannil, Tian Zhang, Ivan Cole, Kulmira Nurgali, Hong Yin, Daniel T. H. Lai
Summary: This study developed a facile and rapid toasting method to prepare biocompatible carbon quantum dots (CQDs) without any additional chemicals. The CQDs derived from this method could be used for cell bioimaging and produced equally bright images as CQDs derived from the commonly used hydrothermal method.
Article
Chemistry, Analytical
Dan Zhao, Yao Fan, Fang Gao, Tian-ming Yang
ANALYTICA CHIMICA ACTA
(2015)
Article
Biochemical Research Methods
Chunjin Wei, Jinyu Li, Fang Gao, Shuxia Guo, Yongcui Zhou, Dan Zhao
JOURNAL OF SPECTROSCOPY
(2015)
Article
Chemistry, Analytical
Xiaoling Xu, Fang Gao, Xincai Xiao, Yan Hu, Chaozhen Zhu, Dan Zhao
JOURNAL OF PHARMACEUTICAL AND BIOMEDICAL ANALYSIS
(2017)
Article
Chemistry, Analytical
Fang Gao, Shiyao Ma, Xincai Xiao, Yan Hu, Dan Zhao, Zhike He
Review
Chemistry, Analytical
Chaomin Cao, Fuyuan Zhang, Ewa M. Goldys, Fang Gao, Guozhen Liu
TRAC-TRENDS IN ANALYTICAL CHEMISTRY
(2018)
Article
Materials Science, Multidisciplinary
Fang Gao, Yuying Liu, Yao Fan, Dan Zhao
SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS
(2014)
Article
Chemistry, Multidisciplinary
Dan Zhao, Jiao-Tian Li, Fang Gao, Cui-Ling Zhang, Zhi-ke He
Article
Chemistry, Physical
Chang Lei, Yuxue Cao, Sepanta Hosseinpour, Fang Gao, Jingyu Liu, Jianye Fu, Reuben Staples, Saso Ivanovski, Chun Xu
Summary: This study demonstrates the fabrication of hydroxyapatite-dendritic mesoporous silica nanoparticles based scaffolds for bone regeneration, showing excellent biocompatibility and osteogenic potential both in vitro and in vivo. The hierarchical pore structure of the scaffolds provides a promising approach for bone tissue engineering.
Article
Chemistry, Physical
Fang Gao, Yang Liu, Chang Lei, Chao Liu, Hao Song, Zhengying Gu, Pei Jiang, Sheng Jing, Jingjing Wan, Chengzhong Yu
Summary: This study developed a new method to prepare water-dispersible DMSNs-QDs, with the optimal size of 368 nm for the detection of C-reactive protein with high sensitivity.
Article
Nanoscience & Nanotechnology
Fang Gao, Chang Lei, Yang Liu, Hao Song, Yueqi Kong, Jingjing Wan, Chengzhong Yu
Summary: This study investigates the impact of surface chemistry of dendritic mesoporous silica nanoparticles (DMSNs) on their enrichment of quantum dots (QDs) and signal amplification as label materials. The amino groups on DMSNs are found to benefit QD fluorescence preservation, while thiol groups increase QD loading capacity. Optimized DMSNs-QDs labels achieve high QD fluorescence preservation and loading capacity, enabling ultrasensitive detection of serum amyloid A (SAA).
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Nanoscience & Nanotechnology
Yuxue Cao, Chun Xu, Patricia P. Wright, Jingyu Liu, Yueqi Kong, Yue Wang, Xiaodan Huang, Hao Song, Jianye Fu, Fang Gao, Yang Liu, Laurence J. Walsh, Chang Lei
Summary: This study developed a combination nanomaterial system that achieved rapid and stable occlusion of dentin tubules, showing potential for the treatment of dentin hypersensitivity.
ACS APPLIED NANO MATERIALS
(2021)
Article
Materials Science, Biomaterials
Jing Geng, Hao Song, Fang Gao, Yueqi Kong, Jianye Fu, Jiangqi Luo, Yannan Yang, Chengzhong Yu
JOURNAL OF MATERIALS CHEMISTRY B
(2020)
Article
Chemistry, Physical
Fang Gao, Shiyao Ma, Jun Li, Kang Dai, Xincai Xiao, Dan Zhao, Weifan Gong
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)