Article
Chemistry, Analytical
Ruifen Sun, Xiumin Yu, Jie Chen, Weiwei Zhang, Yun Huang, Jingcheng Zheng, Yuwu Chi
Summary: In this study, highly electrochemiluminescent perovskite quantum dots (PQDs) were synthesized by optimizing the synthesis conditions. The volume of the precursor solution, concentrations of CsBr and PbBr2, amount of capping reagents, and synthesis reaction temperature were found to significantly affect the ECL activity of PQDs. The new PQDs, characterized as hybrids of 3D PQDs and 0D PQDs with unique morphologies, exhibited much higher ECL activity compared to prevailing 3D PQDs. These novel PQDs were successfully applied for the ECL sensing of bisphenol A, showing promising potential in analytical chemistry.
ANALYTICAL CHEMISTRY
(2022)
Article
Chemistry, Multidisciplinary
V. Naresh, Taehyung Jang, Yoonsoo Pang, Nohyun Lee
Summary: In this study, large-scale dual-phase Cs4PbBr6/CsPbBr3 microcrystals were synthesized using ultrasonication at room temperature, demonstrating high photoluminescence quantum yield and stability. The excellent properties are attributed to surface passivation of CsPbBr3 and isolated octahedra in the Cs4PbBr6 lattice. The material shows promise for achieving white-light emission and a wide color gamut.
Article
Materials Science, Multidisciplinary
Chenfei Wang, Canyun Zhang, Fengchao Wang, Jin Chen, Enliang Ren, Jinfang Kong, Lan Li, Jiayue Xu, Yan Zhang
Summary: This study reported the synthesis of colloidal perovskite nanocrystals based on CsPbBr3@Cs4PbBr6 composite structure, which showed high photoluminescence quantum yield and stability with the assistance of tetraoctylammonium bromide ligands. The crystal morphology and phase structure of the nanocrystals were investigated, and the fabricated LED device exhibited bright white light emission, demonstrating the potential application of these nanocrystals in white light-emitting and display devices.
Article
Engineering, Environmental
Siqi Sun, Min Lu, Jie Guo, Fujun Zhang, Po Lu, Yuhao Fu, Xue Bai, Zhifeng Shi, Zhennan Wu, William W. Yu, Yu Zhang
Summary: This study successfully transformed nonluminescent Cs4PbBr6 nanocrystals into highly luminescent Zn-doped CsPbBr3/Cs4PbBr6 nanocrystals through an insertion reaction, resulting in improved photoluminescence quantum yield. These nanocrystals were used as emitters in LED devices, achieving high performance.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Chenxu Wang, Lihe Yan, Jinhai Si, Tianyu Huo, Xun Hou
Summary: This work successfully prepared CsPbBr3/Cs4PbBr6 core/shell nanocrystals with high photoluminescence quantum yields (87.23%) and long-term stability in ambient environments using a room temperature inverse microemulsion method. The stability was attributed to the protection of Cs4PbBr6, while the high photoluminescence quantum yields were due to the passivation effect of the core/shell structure.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Optics
Longshi Rao, Bin Sun, Qing Zhang, Mingfu Wen, Jiayang Zhang, Guisheng Zhong, Ting Fu, Xiaodong Niu, Yong Tang
Summary: This study demonstrates a convenient and environmentally-friendly method for the mass synthesis of solid metal halide perovskite composites with high emission and stability. The composites exhibit improved photostability, thermostability, and polar solvent stability compared to pure metal halide perovskites. The composites are also successfully applied in flexible/stretchable films and high-power white light-emitting diodes, showing great potential for solid-state lighting, lasing, and flexible/stretchable display device applications.
Article
Chemistry, Multidisciplinary
Teng Zhang, Youru Bai, Shaohuan Feng, Qifan Xue, Xiaotian Hu, Xueqing Xu, Heyuan Liu, Yuriy N. Luponosov, Muhammad Bilal Khan Niazi, Xiyou Li
Summary: We synthesized well-dispersed and highly emitting perovskite emitters using the surfactant-assisted ball-milling method, and their emitting peaks and color purity can be effectively tuned through additive functionalization and precursor engineering.
CHEMICAL COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Teng Zhang, Youru Bai, Shaohuan Feng, Qifan Xue, Xiaotian Hu, Xueqing Xu, Heyuan Liu, Yuriy N. Luponosov, Muhammad Bilal Khan Niazi, Xiyou Li
Summary: This study reports the synthesis of well-dispersed highly emitting perovskite emitters through the surfactant-assisted ball-milling method. The emitting peaks and colour purity of the synthesized perovskite emitters can be effectively controlled through additive functionalization and precursor engineering.
CHEMICAL COMMUNICATIONS
(2023)
Article
Chemistry, Inorganic & Nuclear
Yifei Zhao, Fangrui Cheng, Shuai Zhang, Ruirui Yang, Man Li, Hong Ming, Shi Ye
Summary: This study fabricates highly luminescent CsPbBr3 NC embedded Cs4PbBr6 MCs using an anti-solvent reprecipitation method. The formation mechanism of the MCs is investigated through density functional theory (DFT) calculations. The MCs show improved thermal stability compared to conventional CsPbBr3 NCs and demonstrate great potential in lighting and display applications.
DALTON TRANSACTIONS
(2022)
Article
Chemistry, Physical
Jinlei Zhang, Cihui Liu, Shuyi Wu, Yunsong Di, Fangjian Xing, Zhiyuan Ren, Xiao Zhang, Lun Yang, Chunlan Ma, Zhixing Gan
Summary: This study investigates the impact of Cs4PbBr6 encapsulation on the ultrafast carrier dynamics of CsPbBr3 nanoinclusions. The results show that Cs4PbBr6 encapsulation shortens the hot-carrier cooling time and increases the biexciton binding energy, which is attributed to the involvement of Cs4PbBr6 and the coupling to surface encapsulation. These findings provide important insights for the development of high-performance optoelectronic devices.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Article
Chemistry, Physical
Shuai Ye, Mingyi Huang, Qinxin Han, Jun Song, Junle Qu
Summary: Heterostructured CsPbBr3/Cs4PbBr6@PbS nanocrystals with high thermal and humidity stability were successfully synthesized, showing strong fluorescence in visible and near infrared region under excitation at 365 nm.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Physical
Wanyin Ge, Jindou Shi, Ye Tian, Meimei Xu, Yuanting Wu, Yongxiang Li
Summary: Researchers prepared large-yield stable CsPbBr3@Cs4PbBr6 core-shell nanocrystals by adjusting the initial ratio of Cs/Pb using one-pot route. The growth process of CsPbBr3@Cs4PbBr6 nanocrystals was analyzed, and their stability was evaluated under atmospheric conditions, showing excellent stability compared to pure phase CsPbBr3 nanocrystals. A writable fluorescent ink developed by mixing CsPbBr3@Cs4PbBr6 nanocrystals with thermoplastic polyurethane exhibited excellent heat-resistance stability under multiple heating-cooling cycles, providing alternative options for the commercial development of perovskite materials.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Physical
Jinwoo Park, Kyung Yeon Jang, Song Hee Lee, Dong-Hyeok Kim, So-Hye Cho, Tae-Woo Lee
Summary: CsPbBr3 PeNCs were synthesized using perhydropolysilazane (PSZ) and encapsulated in a SiO2 matrix, resulting in chemically stable PeNC-PSZ composites with high photoluminescence quantum yield (PLQY) of 84.7% and long-term stability even in water.
CHEMISTRY OF MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Katerina Decka, Adela Sucha, Jan Kral, Ivo Jakubec, Martin Nikl, Vitezslav Jary, Vladimir Babin, Eva Mihokova, Vaclav Cuba
Summary: The presence of Cs4PbBr6 significantly reduces the radioluminescence intensity of CsPbBr3 nanocrystals, which may limit the potential applications of Cs4PbBr6-CsPbBr3 mixtures or composites as scintillation detectors.
Article
Materials Science, Multidisciplinary
Doudou Qian, Tiangui Hu, Jingyi Gao, Haihong Du, Li Wu, Yongfa Kong, Yi Zhang, Jingjun Xu
Summary: In this study, the luminous performance of CsPbBr3 powder is significantly improved using a simple mechanosynthesis strategy, making it a promising material for optoelectronic devices.
OPTICAL MATERIALS EXPRESS
(2022)
Article
Chemistry, Multidisciplinary
Shuaifeng Hu, Pei Zhao, Kyohei Nakano, Robert D. J. Oliver, Jorge Pascual, Joel A. A. Smith, Takumi Yamada, Minh Anh Truong, Richard Murdey, Nobutaka Shioya, Takeshi Hasegawa, Masahiro Ehara, Michael B. B. Johnston, Keisuke Tajima, Yoshihiko Kanemitsu, Henry J. J. Snaith, Atsushi Wakamiya
Summary: In this study, it is found that the surface treatment of mixed tin-lead halide perovskite films with piperazine promotes charge extraction, and combined treatment with CPTA reduces hysteresis and improves efficiency and stability of solar cells.
ADVANCED MATERIALS
(2023)
Review
Chemistry, Multidisciplinary
Anirudha Jena, Behrouz Bazri, Zizheng Tong, Kevin Iputera, Jheng-Yi Huang, Da-Hua Wei, Shu-Fen Hu, Ru-Shi Liu
Summary: This review focuses on the use of high-voltage cathode materials in all-solid-state batteries, where the redox peak of the cathode components extends beyond 4.7 V. Li-Ni-Mn-O systems are currently being investigated as cathodes for high-voltage cells. Additionally, the compatibility between electrodes and electrolytes at such high potentials is discussed, as well as the importance of controlling anode thickness to reduce solid-electrolyte interphase formation and dendrite growth. The review also discusses strategies for optimizing cell components to minimize electrode-electrolyte impedance and facilitate ion transportation during battery cycling.
Article
Acoustics
Umamaheswari Rajaji, K. Yogesh Kumar, Rameshkumar Arumugam, Asma A. Alothman, Mohamed Ouladsmane, Ren-Jei Chung, Ting-Yu Liu
Summary: Herbicide monitoring is crucial due to its potential negative impact on the environment. The study presents a simple synthesis method for Sr@La2S3 and demonstrates its effectiveness in electrochemical detection of MTO with high sensitivity and selectivity. The fabricated Sr@La2S3/RDE electrode shows excellent repeatability and could serve as a novel electrode for real-time determination of herbicides.
ULTRASONICS SONOCHEMISTRY
(2023)
Review
Chemistry, Physical
Zhongxiao Li, Shi Fang, Haiding Sun, Ren-Jei Chung, Xiaosheng Fang, Jr-Hau He
Summary: Hydrogen, a zero-pollution, sustainable, low-cost, and high-efficiency energy source, has great potential for the 21st century. Solar water-splitting techniques, such as photovoltaic-electrolysis (PV-EC) and photoelectrochemistry (PEC), have shown promise with solar-to-hydrogen conversion efficiency over 10%. However, there is a gap between laboratory research and practical application, which can be addressed by understanding the basic principles, historical developments, and performing comprehensive techno-economic analysis.
ADVANCED ENERGY MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
A. K. Panda, K. Murugan, R. Sakthivel, U. Dhawan, L. -Y. Lin, Y. -F. Duann, J. -H. He, R. -J. Chung
Summary: We designed and constructed an enzyme-free sensor using PtNi bimetallic alloy nanoparticle-conjugated N-GQDs for in situ monitoring of dopamine (DA) secreted by glioma cells. The PtNi@N-GQDs nanocomposites were synthesized through ultrasonication, exhibiting excellent electrocatalytic activity for DA oxidation. The PtNi@N-GQDs-based sensing platform showed substantial sensing ability, stability, selectivity, and reproducibility, with a wide detection range and low detection limit.
MATERIALS TODAY CHEMISTRY
(2023)
Article
Nanoscience & Nanotechnology
Yu-Kai Liao, Zizheng Tong, Shin-An Liu, Jui-Hsiung Huang, Ru-Shi Liu, Shu-Fen Hu
Summary: This study used a high-conductivity garnet-type solid electrolyte (LLZTO) and Li-Ga-N composite anode to reduce interfacial resistance and enhance the performance of all-solid-state batteries. The research demonstrated a stable cycling performance and high discharge capacity retention.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Physics, Applied
Kotaro Nakagawa, Nobuhisa Ishii, Yoshihiko Kanemitsu, Hideki Hirori
Summary: We generated intense mid-infrared pulses with a tunable wavelength range of 5.3-7.4 μm and a pulse energy of up to 6.2 μJ. This was achieved through white-light generation, intra-pulse difference frequency generation (DFG), and optical parametric amplification. The use of intra-pulse DFG allowed for the generation of carrier-envelope phase (CEP)-stable mid-infrared optical pulses, with a CEP standard deviation of 114 mrad during a 5-hour-long measurement.
APPLIED PHYSICS EXPRESS
(2023)
Article
Chemistry, Physical
Natalia Majewska, Alfonso Munoz, Ru-Shi Liu, Sebastian Mahlik
Summary: This study compares the changes in the luminescence properties of Ga2O3:Cr3+ modified by Al or Sc ion substitution (chemical pressure) and hydrostatic pressure. Ga2-x Al x O3:Cr3+ exhibits the same behavior under chemical and mechanical pressure, while Ga2-x Sc x O3:Cr3+ shows different behavior. Al substitution affects the crystal volume but not the chemical bond angles in the Cr3+ local environment, whereas Sc ions cause lattice distortion and influence the chemical bond lengths and angles. The energy structure diagrams of the d(3) configuration of Cr3+ ion as a function of pressure are calculated by considering the pressure dependence of the Racah parameters. It is suggested that the method and diagrams presented in this paper should be used for interpreting high-pressure experiments involving Cr3+ and other transition metals.
CHEMISTRY OF MATERIALS
(2023)
Article
Chemistry, Physical
Kenichi Cho, Takumi Yamada, Masaki Saruyama, Ryota Sato, Toshiharu Teranishi, Yoshihiko Kanemitsu
Summary: In this study, the temperature dependence of the photoluminescence (PL) spectra of perovskite FAPbBr(3) and CsPbBr3 nanoparticles was investigated. The results showed that the PL linewidths were mainly influenced by the Frohlich interaction between excitons and longitudinal optical phonons. A redshift in the PL peak energy was observed between 100 and 150 K for FAPbBr(3) nanoparticles, which was attributed to the orthorhombic-to-tetragonal phase transition. It was also found that the phase transition temperature of FAPbBr(3) nanoparticles decreased as the nanoparticle size decreased.
JOURNAL OF CHEMICAL PHYSICS
(2023)
Review
Chemistry, Multidisciplinary
Aishwarya Satpathy, Ting-Yi Su, Wen-Tse Huang, Ru-Shi Liu
Summary: The design of nanoprobes in the NIR-II region has attracted significant attention due to their flexible emission and reduced photon scattering for in vivo fluorescence imaging. Quantum dots, AIEgens, carbon nanotubes, and polymers are constantly being improved for better NIR-II emission. Lanthanides and nanophosphors are extensively explored for NIR-II imaging applications, with nanophosphors showing promising luminescence properties and energy transfer processes. Our review aims to provide insights into nanophosphors for biological imaging applications and compare them with lanthanides in order to understand their mechanism and importance in the future bio-imaging field.
JOURNAL OF THE CHINESE CHEMICAL SOCIETY
(2023)
Editorial Material
Chemistry, Physical
Ru-Shi Liu
CHEMISTRY OF MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Pavitra Srivastava, Yu-Kai Liao, Kevin Iputera, Shu-Fen Hu, Ru-Shi Liu
Summary: The use of β-SiC as an additive can improve the physical contact between Garnet-type solid-state electrolytes and Li metal, resulting in improved intimacy and robustness by forming lithiophilic Li4SiO4 and hard SiC phases. The optimized Li-SiC|LLZTO|Li-SiC symmetric cell exhibits low interfacial impedance and superior cycling stability.
Article
Chemistry, Physical
Chika Higashimura, Go Yumoto, Takumi Yamada, Tomoya Nakamura, Fuyuki Harata, Hideki Hirori, Atsushi Wakamiya, Yoshihiko Kanemitsu
Summary: Two-dimensional halide perovskites exhibit unique structural and optical properties due to the distortion of the perovskite structure by large organic molecular cations, resulting in stable excitons confined in the 2D layers. In this study, the temperature dependences of various properties of a specific 2D perovskite crystal were investigated. The findings suggest that the anomalous temperature dependence of the Urbach tail parameter is caused by a random distribution of spontaneous polarizations in the ferroelectric phase.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2023)
Article
Chemistry, Multidisciplinary
Loan Thi Ngo, Wen-Tse Huang, Ming-Hsien Chan, Ting-Yi Su, Chien-Hsiu Li, Michael Hsiao, Ru-Shi Liu
Summary: This study investigates the neurotoxicity of all-inorganic lead halide perovskite quantum dots (PeQDs) using Caenorhabditis elegans as a model organism. The results show that PeQDs accumulate mainly in the alimentary system and head region, causing a decrease in locomotor behaviors, pharyngeal pumping, brood decline, short lifespan, and abnormal issues in reproduction. Excessive reactive oxygen species formation is also observed. The neurotoxicity of PeQDs is explained by gene expression. This study provides an insight into the neurotoxicity of PeQDs and inspires the development of nontoxic PeQDs.
Review
Materials Science, Multidisciplinary
Wen-Tse Huang, Kuan-Chun Chen, Ming-Hsuan Huang, Ru-Shi Liu
Summary: Applications in the near-infrared (NIR) have been extensively researched in various fields, such as bioimaging, night vision, plant growth, and chemical analysis. Different emission profiles are required in the same industry. Developing luminescent materials with different tuning methods is reliable for controlling the NIR regions. Spinel phosphors are promising candidates due to their ability to modulate the crystal field. Understanding the parameters that influence the degree of inversion in spinel compounds is crucial for harnessing the variability of the spinel structure.
ADVANCED OPTICAL MATERIALS
(2023)
