Article
Materials Science, Multidisciplinary
Huaze Zhu, Yongqiang Yang, Yuyang Kang, Ping Niu, Xiangdong Kang, Zhiqing Yang, Hengqiang Ye, Gang Liu
Summary: Integrating upconversion materials with visible light active photocatalysts can enhance the efficiency of photocatalysts. The interface contact between upconversion material and photocatalyst has potential influence on the properties and performance of the system. By modulating the microstructures through annealing process, the hydrogen evolution activity of the photocatalyst was greatly increased.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2022)
Article
Optics
Nattha Buatong, Balaji Rao Ravuri, Wisanu Pecharapa
Summary: Multicomponent nanoheterostructures that combine upconverting materials and semiconductor nanocrystals have gained increasing interest in recent years. The interaction between these components can improve the properties of existing materials and induce new materials with enhanced electronic properties. In this study, a new nanoheterostructure composed of NaYF4:Yb,Er decorated with AgInS2 nanocrystals was synthesized via a thermal decomposition reaction. The combination of upconverting and semiconducting materials in the NaYF4:Yb,Er/AgInS2 nanoheterostructure exhibited photoactivity under NIR irradiation. Compared to pure AgInS2 nanocrystals, the NaYF4:Yb,Er/AgInS2 nanoheterostructure showed stronger light absorption characteristics in the visible region.
Article
Engineering, Chemical
Marina Vukovic, Ivana Dinic, Paula Jardim, Smilja Markovic, Ljiljana Veselinovic, Marko Nikolic, Lidija Mancic
Summary: This paper reports the successful synthesis of hexagonal NaYF4:Yb,Er mesocrystals using mild sonochemical methods at low temperature. The formation process of crystal structures is investigated and it is found that the pure beta phase can be obtained after 2 hours of pulsed sonication. The transition from the alpha phase to the beta phase is concluded to be a result of dissolution-recrystallization process based on the analysis of nanoparticle morphology.
ADVANCED POWDER TECHNOLOGY
(2022)
Article
Chemistry, Physical
Christian Wurth, Bettina Grauel, Monika Pons, Florian Frenzel, Philipp Rissiek, Kerstin Rucker, Markus Haase, Ute Resch-Genger
Summary: This study systematically analyzed the dependence of UC luminescence quantum yield on the dopant concentration in solid NaYF4:Yb,Er/NaYF4:Lu upconversion core/shell nanocrystals. The results showed that high Yb3+ concentrations can increase the particle absorption cross section and brightness of UCNC, while high Er3+ concentrations can decrease the luminescence brightness.
Article
Chemistry, Multidisciplinary
Dandan Ju, Xiaoli Gao, Shouchao Zhang, Yang Li, Wenjing Cui, Yinhui Yang, Mingyan Luo, Shujing Liu
Summary: The study explores the impact of temperature on the emission luminescence properties of beta-NaYF4:Yb/Er@beta-NaYF4:Yb/Tm microcrystals and proposes a temperature sensing method based on fluorescence intensity ratio, showing high temperature sensitivity of the sample, especially in the low temperature region.
Article
Materials Science, Ceramics
Nguyen Ba Tong, Le Van Si, Cao T. M. Dung, Ta Thi Kieu Hanh, Tran Thi Ngoc Lam, Phan Bach Thang, Do Huy Binh, Nguyen Thai Ngoc Uyen, Tran T. T. Van
Summary: This study successfully prepared hydrophilic pigments based on NaYF4:Er,Yb@SiO2 nanoparticles for water-based ink printing, which can be used for anti-counterfeiting printing, biological imaging, and optical information storage.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Multidisciplinary
Hanchang Huang, Yanyi Zhong, Mingchen Li, Wenda Cui, Tongcheng Yu, Guomin Zhao, Zhongyang Xing, Chuan Guo, Kai Han
Summary: In Yb-Er co-doped upconversion nanomaterials, the concentration of Er3+ can modulate the upconversion luminescence (UCL) to generate multiband emissions. By studying beta-NaYF4:Yb3+/Er3+ microcrystals with different Er3+ concentrations, it was found that the doping concentration influenced the UCL emission bands and response rates. A low Er3+ doping concentration resulted in slow UCL response, while a higher concentration led to faster response and multiband UCL. However, excessive Er doping hindered the four-photon UC process. This research demonstrates the importance of controlling Er3+ doping concentration to manipulate energy flow and improve the performance of rare earth materials.
FRONTIERS IN CHEMISTRY
(2023)
Article
Polymer Science
S. Namagal, N. Victor Jaya, N. Nithyaa, M. Muralidharan, S. Venkatesh
Summary: Tracking cancer cells and assessing the cytotoxicity of normal tissue are critical in cancer treatment. Magnetic and fluorescent multifunctional particles show potential for future target recognition. Ferromagnetic materials are the best candidates for gene therapy in cancer treatment. This study prepared beta-NaYF4: Yb, Er compounds doped with varying percentages of Zirconium (Zr) using a hydrothermal technique. The results indicate that Zr doping transforms the crystal phase of NaYF4: Yb, Er compounds and enhances their red emission for bioimaging applications. Among the different doping concentrations, 10-20% Zr doping shows better magnetic properties. The resultant compound is viable for VERO cells.
JOURNAL OF INORGANIC AND ORGANOMETALLIC POLYMERS AND MATERIALS
(2022)
Article
Chemistry, Physical
Pawel Mazierski, Juganta K. Roy, Alicja Mikolajczyk, Ewelina Wyrzykowska, Tomasz Grzyb, Pablo Nicolas Arellano Caicedo, Zhishun Wei, Ewa Kowalska, Adriana Zaleska-Medynska, Joanna Nadolna
Summary: The NaYF4-Er-Yb-TiO2 photocatalyst synthesized by hydrothermal process exhibits Er3+ and F- surface doping at the TiO2 crystal boundaries and UCPs particles, with the predicted electronic structure indicating that the formation of new Er-4f states is crucial for its photocatalytic performance. Luminescence spectroscopy measurements reveal up-conversion energy transfer from Yb3+ to Er3+ ions in UCPs particles.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Physical
Jingxiao Liu, Zhichun Zou, Fei Shi, Xin Song, Haoyuan Zhang, Han Zhang, Xiaoying Song, Xinran Zhao, Zixuan Wang, Jiahong Kang
Summary: In this study, pitaya-like Cs0.3WO3@NaYF4:Yb, Er particles were successfully constructed to enhance the luminescence of NaYF4:Yb, Er. The enhancement of emission peaks and colour tuning were achieved through the localized surface plasmon resonance (LSPR) effect of Cs0.3WO3. These novel particles show strong upconversion (UC) luminescence enhancement and colour tuning, demonstrating great potential in the field of luminescent displays.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Analytical
Wei Tang, Ruo Mi, Lun Wang, Hongqi Chen
Summary: The system combines quantitative image analysis with magnetic separation technology, showing low background interference and high separation efficiency, making it suitable for application in biology.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Materials Science, Multidisciplinary
Xiaoxiong Zhang, Xiaohong Qin, Wenjun Zhang
Summary: A mixture of NaYF4:Yb, Er and nitrogen-doped graphene quantum dots (N-GQDs) was synthesized using a simple one-pot hydrothermal method, displaying different luminescent colors under different light irradiation wavelengths. The synthesized mixture, when integrated into a polyvinyl alcohol (PVA) matrix, forms a transparent luminescent film with potential applications in anti-counterfeiting packaging.
Article
Chemistry, Applied
Yunfei Ma, Wenhui Yue, Zehong Xu, Ziwei Ye, Jinlong Zhang
Summary: Composite nanoparticles consisting of upconversion nanoparticles (beta-NaYF4:Yb/Er) and nitrogen doped TiO2 nanoparticles were fabricated using a chemical assembly method. Efficient energy transfer was achieved by matching the upconverted energy with the band gap of N-TiO2, resulting in excellent Rhodamine B (RhB) degradation activity under near infrared (NIR) light irradiation.
Article
Biochemistry & Molecular Biology
T. M. Dung Cao, T. T. Giang Le, Sylvia Turrell, Maurizio Ferrari, Quang Vinh Lam, T. T. Van Tran
Summary: NaYF4:Er,Yb upconversion luminescent nanoparticles were prepared by hydrothermal methods with MA grafting for hydrophilic properties, showing high stability and emission intensity suitable for screen printing applications.
Article
Chemistry, Physical
Jiamin Jiang, Ru Bai, Cong Liu, Jinglai Zhang, Li Wang
Summary: Photocatalysis is a promising method for degrading water pollution, but removing antibiotics from aqueous solutions remains challenging. A novel heterogeneous photocatalyst with energy trapping center in the shell is synthesized to improve upconversion efficiency. The results show that the photocatalyst achieves a high degradation extent of amoxicillin, surpassing conventional catalysts by 40%.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Multidisciplinary
Lei Wang, Jinkyu Han, Bryan Sundahl, Scott Thornton, Yuqi Zhu, Ruiping Zhou, Cherno Jaye, Haiqing Liu, Zhuo-Qun Li, Gordon T. Taylor, Daniel A. Fischer, Joerg Appenzeller, Robert J. Harrison, Stanislaus S. Wong
Article
Chemistry, Multidisciplinary
Huidong Zang, Prahlad K. Routh, Qingping Meng, Mircea Cotlet
Article
Materials Science, Multidisciplinary
Shiyu Yue, Yuchen Zhou, Shihui Zou, Lei Wang, Haiqing Liu, Stanislaus S. Wong
ADVANCED OPTICAL MATERIALS
(2017)
Article
Materials Science, Multidisciplinary
Jinkyu Han, Elaine Lee, Jessica K. Dudoff, Michael Bagge-Hansen, Jonathan R. I. Lee, Andrew J. Pascall, Joshua D. Kuntz, Trevor M. Willey, Marcus A. Worsley, Thomas Yong-Jin Han
ADVANCED OPTICAL MATERIALS
(2017)
Article
Chemistry, Physical
Haiqing Liu, Dominic Moronta, Luyao Li, Shiyu Yue, Stanislaus S. Wong
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2018)
Article
Nanoscience & Nanotechnology
Jinkyu Han, Megan C. Freyman, E. Feigenbaum, T. Yong-Jin Han
Article
Chemistry, Physical
Ted A. Laurence, Yang Liu, Ming Zhang, Matthew J. Owen, Jinkyu Han, Lingdong Sun, Chunhua Yan, Gang-Yu Liu
JOURNAL OF PHYSICAL CHEMISTRY C
(2018)
Article
Chemistry, Physical
Soham Banerjee, Chia-Hao Liu, Jennifer D. Lee, Anton Kovyakh, Viktoria Grasmik, Oleg Prymak, Christopher Koenigsmann, Haiqing Liu, Lei Wang, A. M. Milinda Abeykoon, Stanislaus S. Wong, Matthias Epple, Christopher B. Murray, Simon J. L. Billinge
JOURNAL OF PHYSICAL CHEMISTRY C
(2018)
Meeting Abstract
Chemistry, Multidisciplinary
Shiyu Yue, Yuchen Zhou, Shihui Zou, Lei Wang, Haiqing Liu, Stanislaus Wong
ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
(2018)
Meeting Abstract
Chemistry, Multidisciplinary
Luyao Li, Haiqing Liu, Lei Wang, Shiyu Yue, Xiao Tong, Tatiana Zaliznyak, Gordon Taylor, Stanislaus Wong
ABSTRACTS OF PAPERS OF THE AMERICAN CHEMICAL SOCIETY
(2018)
Article
Nanoscience & Nanotechnology
Luyao Li, Haiqing Liu, Chao Qin, Zhixiu Liang, Alexis Scida, Shiyu Yue, Xiao Tong, Radoslav R. Adzic, Stanislaus S. Wong
ACS APPLIED NANO MATERIALS
(2018)
Article
Nanoscience & Nanotechnology
Coray L. McBean, Haiqin Liu, Megan E. Scofield, Luyao Li, Lei Wang, Ashley Bernstein, Stanislaus S. Wong
ACS APPLIED MATERIALS & INTERFACES
(2017)
Article
Chemistry, Physical
Sergey Yu. Ketkov, Sheng-Yuan Tzeng, Elena A. Rychagova, Anton N. Lukoyanov, Wen-Bih Tzeng
Summary: Metallocenes, including methylcobaltocene, play important roles in various fields of chemistry. The ionization energy and vibrational structure of (Cp ')(Cp)Co can be influenced by introducing methyl substituents. The mass-analyzed threshold ionization spectrum and DFT calculations provide accurate information about the properties and transformations of (Cp ')(Cp)Co.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Review
Chemistry, Physical
Qifeng Mu, Jian Hu
Summary: Polymer mechanochemistry has experienced a renaissance due to the rapid development of mechanophores and principles governing mechanochemical transduction or material strengthening. It has not only provided fundamental guidelines for converting mechanical energy into chemical output, but also found applications in engineering and smart devices.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Da Hye Yang, Francesco Ricci, Fredrik L. Nordstrom, Na Li
Summary: Through systematic evaluation of the oiling-out behavior of procaine, we identified both stable and metastable liquid-liquid phase separation, and established phase diagrams to assist in rational selection of crystallization strategies.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Vikki Anand Varma, Simmie Jaglan, Mohd Yasir Khan, Sujin B. Babu
Summary: Designing engineering structures like nanocages, shells, and containers through self-assembly of colloids is a challenging problem. This work proposes a simple model for the subunit, which leads to the formation of monodispersed spherical cages or containers. The model with only one control parameter can be used to design cages with the desired radius.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Hainan Jiang, Yaolong He, Xiaolin Li, Zhiyao Jin, Huijie Yu, Dawei Li
Summary: The cycling lifespan and coulombic efficiency of lithium-ion batteries are crucial for high C-rate applications. The Li-ion concentration plays a crucial role in determining the mechanical integrity and structural stability of electrodes. This study focuses on graphite as the working electrode and establishes an experimental system to investigate the mechanical properties of composite graphite electrode at different C-rates. Considering the effect of Li-ion concentration in stress analysis is found to be significant.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Zhiye Wang, Yunchuan Li, Mingjun Sun
Summary: This study investigates the influence of intramolecular pi-pi interactions on the electronic transport capabilities of molecules. By designing and analyzing three pi-conjugated molecules, the researchers observe that different pi-conjugated structures have varying effects on electron transport. The findings provide a theoretical foundation for designing single-molecule electronic devices with multiple electron channels based on intramolecular pi-pi interactions.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Yuandong Xu, Haoyang Feng, Chaoyang Dong, Yuqing Yang, Meng Zhou, Yajun Wei, Hui Guo, Yaqing Wei, Jishan Su, Yingying Ben, Xia Zhang
Summary: Hollow MoS2 cubes and spheres were successfully synthesized using a one-step hydrothermal method with the hard template method. The hollow MoS2 cubes exhibited higher specific capacitance and energy density compared to the hollow MoS2 spheres. The symmetrical supercapacitors assembled with these hollow structures showed good performance and high capacity retention after multiple cycles. These findings suggest that controlling the pore structure and surface characteristics of MoS2 is crucial for enhancing its electrochemical properties.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Ainhoa Oliden-Sanchez, Rebeca Sola-Llano, Joaquin Perez-Pariente, Luis Gomez-Hortiguela, Virginia Martinez-Martinez
Summary: The combination of photoactive molecules and inorganic structures is important for the development of advanced materials in optics. In this study, bulky dyes were successfully encapsulated in a zeolitic framework, resulting in emission throughout the visible spectrum.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Miaomiao Zhang, Cunyuan Pei, Qiqi Xiang, Lintao Liu, Zhongxu Dai, Huijuan Ma, Shibing Ni
Summary: The design of a solid electrolyte interphase (SEI) plays a crucial role in improving the electrochemical performance of anode materials. In this study, lithium difluoro(oxalate)borate (LiDFOB) is used as an electrolyte additive to form a protective SEI film on Li3VO4 (LVO) anodes. The addition of LiDFOB results in a dense, uniform, stable, and LiF-richer SEI, which enhances the Li-ion storage kinetics. The generated SEI also prevents further decomposition of the electrolyte and maintains the morphology of LVO anodes during charge/discharge processes. This work demonstrates the effectiveness of LiDFOB as a multi-functional additive for LiPF6 electrolytes and provides insights into SEI construction for high-performance LVO anodes.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
B. V. Andryushechkin, T. V. Pavlova, V. M. Shevlyuga
Summary: The atomic structure of the Ag(111)-p(4 x 4)-O phase was reexamined and two phases with the same periodicity were discovered. It was demonstrated that the accepted Ag6 model is incompatible with high-resolution oxygen-sensitive STM images.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
S. L. Romo-Avila, D. Marquez-Ruiz, R. A. Guirado-Lopez
Summary: In this study, we used density functional theory (DFT) calculations to investigate the interaction between model graphene oxide (GO) nanostructures and chlorine monoxide ClO. We aimed to understand the role of this highly oxidizing species in breaking C-C bonds and forming significant holes on GO sheets. Our results showed that C-C bonds in a single graphene oxide sheet can be broken through a simple mechanism involving the dissociation of two chemically attached ClO molecules. The formation of carbonyl groups and holes on the GO surface was also observed. This study provides important insights into the degradation of carbon nanotubes and the stability of GO during the myeloperoxidase (MPO) catalytic cycle.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Alberto Garcia-Fernandez, Birgit Kammlander, Stefania Riva, Hakan Rensmo, Ute B. Cappel
Summary: In this study, the X-ray stability of five different lead halide perovskite compositions (MAPbI3, MAPbCl3, MAPbBr3, FAPbBr3, CsPbBr3) was investigated using photoelectron spectroscopy. Different degradation mechanisms and resistance to X-ray were observed depending on the crystal composition. Overall, perovskite compositions based on the MA+ cation were found to be less stable than those based on FA+ or Cs+. Metallic lead formation was most easily observed in the chloride perovskite, followed by bromide, and very little in MAPbI3. Multiple degradation processes were identified for the bromide compositions, including ion migration, formation of volatile and solid products, as well as metallic lead. CsBr was formed as a solid degradation product on the surface of CsPbBr3.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Timofei Rostilov, Vadim Ziborov, Alexander Dolgoborodov, Mikhail Kuskov
Summary: The shock-loading behavior of nanomaterials is investigated in this study. It is found that shock compaction waves exhibit a distinct two-step structure, with the formation of faster precursor waves that travel ahead of the main compaction waves. The complexity of the shock Hugoniot curve of the tested nanomaterial is described, and the effect of initial porosity on the compressed states is demonstrated.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Sergey S. Nikitin, Alexander D. Koryakov, Elizaveta A. Antipinskaya, Alexey A. Markov, Mikhail V. Patrakeev
Summary: The stability of La1/3Sr2/3Fe1-xMnxO3-delta, a perovskite-type oxide, under reducing conditions is dependent on the manganese content. Increasing the manganese content leads to a decrease in stability. The behavior of iron and manganese in the oxide shows distinct differences, which can be attributed to the difference in the enthalpy of oxidation reactions. Additionally, the change in the La/Sr ratio affects the concentration of iron and manganese ions.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)
Article
Chemistry, Physical
Mosayeb Naseri, Shirin Amirian, Mehrdad Faraji, Mohammad Abdur Rashid, Maicon Pierre Lourenco, Venkataraman Thangadurai, D. R. Salahub
Summary: Inspired by the successful transfer of freestanding ultrathin films of SrTiO3 and BiFeO3, this study assessed the structural stability and investigated the electronic, optical, and thermoelectric properties of a group of two-dimensional perovskite-type materials called perovskenes. The findings revealed that these materials are wide bandgap semiconductors with potential application in UV shielding. Moreover, they exhibit better electrical and thermal conductivity at high temperatures, enabling efficient power generation in thermoelectric devices.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2024)