Article
Chemistry, Multidisciplinary
Huanhuan Zhang, Lin Yang, Hao Chen, Wenqiang Ma, Rui Wang, Guozhong Cao
Summary: In this study, lead-free metal halides were synthesized using a microwave method, and highly efficient light emitters were obtained, leading to stable cold/warm white-light emissions and a high color-rendering index. These copper-based halide composites have great potential for applications in next-generation solid-state lighting.
MATERIALS CHEMISTRY FRONTIERS
(2022)
Article
Materials Science, Multidisciplinary
Guojun Zhou, Jialiang Ding, Xingxing Jiang, Jian Zhang, Maxim S. Molokeev, Qiqiong Ren, Jun Zhou, Shili Li, Xian-Ming Zhang
Summary: This study designs and synthesizes lead-free Mn2+-based halides with different coordination environments, and explores their potential applications in white LEDs through the investigation of their luminescence mechanism.
JOURNAL OF MATERIALS CHEMISTRY C
(2022)
Article
Chemistry, Multidisciplinary
S. K. Gupta, B. Modak, P. Modak, Y. Mao
Summary: This research investigates defect emission in undoped and doped Lu2Hf2O7 nanocrystals and demonstrates their potential for radioactive waste immobilization and radiation stability.
MATERIALS TODAY CHEMISTRY
(2022)
Article
Nanoscience & Nanotechnology
Shiquan Yang, Lingxiao Xing, Guihua Li, Zaiwu Yuan
Summary: Fluorescent films of silver nano-clusters and photonic cellulose nanocrystals with tunable fluorescence emission color are prepared by self-assembly. These films show potential for anticounterfeiting and can be used to create multicolor photoluminescent patterns.
ACS APPLIED NANO MATERIALS
(2022)
Article
Multidisciplinary Sciences
Kewei Ma, Qingfeng Gui, Cihui Liu, Yunyi Yang, Fangjian Xing, Yunsong Di, Xiaoming Wen, Baohua Jia, Zhixing Gan
Summary: This study synthesized a fluorescent composite that can achieve multicolor emission. By manipulating radiative defects and structural dimensionality, a permanent photochromic effect was achieved, enabling applications in anticounterfeiting and microsteganography. The RGB luminescence of the composite was highly stable after encapsulation, making it suitable for trichromatic light-emitting modules.
Review
Materials Science, Ceramics
Chao Chen, Chengbing Yu, Feng Xu, Qinling Li, Yuepin Zhang
Summary: Transparent borosilicate glasses doped with Dy3+, Sm3+, and Dy3+/Sm3+ were prepared by a melt-quenching method, and glass ceramics containing novel Na5Y9F32 nanocrystals were developed by heating the precursor glasses at a specified temperature. The emission color can be tuned from yellow to white by adjusting the Sm3+ content, and the maximum energy transfer efficiency between Dy3+/Sm3+ ions was estimated to be 73.23%. The prepared glass ceramics exhibit good thermal stability, making them a promising material for white-light emitting diode applications.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Ceramics
Luis A. Gonzalez, Vianey Sanchez-Cardona, Jose Escorcia-Garcia, Miguel A. Melendez-Lira
Summary: Undoped and Ce-doped ZnS nanocrystals were synthesized using a low-temperature aqueous solution method with L-cysteine as a complexing and capping agent. The nanocrystals were polydisperse with sizes ranging from 2-4 nm, and all samples were sulfur deficient. X-ray photoelectron spectroscopy confirmed the presence of Ce3+ in the Ce-doped samples. UV-vis spectroscopy showed a blue shift in the optical bandgap compared to bulk ZnS. Room-temperature photoluminescence studies revealed a broad band emission consisting of UV and blue components due to ZnS defects, as well as a green component from the 5d-4f transition of Ce3+.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Physical
Hyungbin Lim, Kyeong-Yoon Baek, Jae Il Kim, Jonghoon Lee, Jaeyoung Kim, Heebeom Ahn, Hyeonmin Choi, Seung-Je Woo, Sung Keun Lee, Tae-Woo Lee, Jeongjae Lee, Keehoon Kang, Takhee Lee
Summary: Metal-halide perovskites with synthetic tunability can control the crucial properties for optoelectronic device applications. By adjusting the halide compositions, the optical band gap of perovskites can be modified to emit visible light in a wide range of colors. In this study, we successfully synthesized a series of mixed-halide zero-dimensional perovskites using mechanochemical synthesis, and demonstrated their unique optical properties. Moreover, we showed that these perovskite powder samples can be used for fabricating thin films via vacuum deposition. Overall, our research reveals the versatility of mechanochemical synthesis in preparing different compositions of zero-dimensional perovskites.
CHEMISTRY OF MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Rong Huang, Songbin Liu, Jinshu Huang, Huiming Liu, Zhiyong Hu, Lili Tao, Bo Zhou
Summary: A novel approach for intense upconversion of the holmium sublattice through interfacial energy transfer channels was reported, allowing spatial separation of Ho3+ and Yb3+ to minimize unwanted energy transfers. This design achieved a gradual color change from red to yellowish green upon 808 nm excitation.
Article
Optics
Yakun Le, Xiongjian Huang, Hao Zhang, Zhihao Zhou, Dandan Yang, Bozhao Yin, Xiaofeng Liu, Zhiguo Xia, Jianrong Qiu, Zhongmin Yang, Guoping Dong
Summary: Lead-free [MnBr4]BrCs3 anti-perovskite nanocrystal (NC)-embedded glass has been designed and prepared for high-resolution X-ray imaging, demonstrating excellent X-ray irradiation stability and thermal stability.
ADVANCED PHOTONICS
(2023)
Article
Physics, Applied
Weidong Cai, Chaoyang Kuang, Tianjun Liu, Yuequn Shang, Jia Zhang, Jiajun Qin, Feng Gao
Summary: In this study, the researchers achieved blue luminescence in manganese-based composites by selecting a specific organic component, and demonstrated the potential of these composites in anti-counterfeiting technology and multicolor lighting. The results provide a new strategy for full-spectral emission in manganese-based organic-inorganic metal halide composites, laying a solid foundation for various new applications.
APPLIED PHYSICS REVIEWS
(2022)
Article
Chemistry, Multidisciplinary
Jose J. Araujo, Carl K. Brozek, Hongbin Liu, Anna Merkulova, Xiaosong Li, Daniel R. Gamelin
Summary: The passage discusses the characteristics and control methods of degenerately doped metal-oxide nanocrystals, focusing on the influence of charge-compensating aliovalent dopants on the potentials of excess conduction-band electrons. Experimental and modeling analyses reveal significant differences between aliovalent doping and photodoping in compensating conduction-band electrons, with spectroelectrochemical techniques used to investigate these differences and enhance our understanding of these oxide nanocrystals.
Review
Nanoscience & Nanotechnology
Parul Bansal, Harshita Bhatia, Elke Debroye
Summary: This review focuses on the development of highly efficient blue-emitting methylammonium lead bromide perovskite nanocrystals by optimizing their optoelectronic properties. Strategies for synthesizing and fine-tuning their emission spectra are discussed, as well as the key issues and solutions for achieving stable blue emission. The progress in the fabrication of blue- and green-emitting perovskite-based LEDs is also covered.
Article
Chemistry, Multidisciplinary
Ya Liu, Shuangpeng Yan, Tianchi Wang, Qingshan He, Xiaodie Zhu, Chao Wang, Daiyuan Liu, Ting Wang, Xuhui Xu, Xue Yu
Summary: In this study, the long persistent luminescence of 2D all-inorganic perovskites with a self-assembled 2D interlayer galleries structure is investigated. It is found that by replacing Cd2+ with appropriate Mn2+ ions in 2D Cs2CdCl4 Ruddlesden-Popper phase perovskites, the decay time of long persistent luminescence increases from 450 s to 600 s, the luminescence color changes from cyan to orange, and the thermal stability of photoluminescence enhances significantly. Furthermore, diversified anti-counterfeiting modes are fabricated to demonstrate the promising applications of Cs2CdCl4 perovskite systems with tunable persistent luminescence in advanced anti-counterfeiting.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Review
Nanoscience & Nanotechnology
Benjamin Sreenan, Bryan Lee, Li Wan, Ruosheng Zeng, Jialong Zhao, Xiaoshan Zhu
Summary: This review discusses the applications of colloidal semiconductor nanocrystals (NCs) in biosensing/imaging and the technique of time-resolved luminescence measurement. The traditional luminescence-intensity measurement suffers from autofluorescence in biological samples, limiting the sensitivities. To overcome this, the review suggests using time-resolved luminescence measurement with long-lived probes. However, the current long-lived probes have optical limitations. Therefore, developing probes with high brightness, low-energy excitation, and long lifetimes is crucial for low-cost, compact, and sensitive instruments for in-field or point-of-care testing. Mn-doped NCs offer potential solutions to these challenges.
ACS APPLIED NANO MATERIALS
(2022)
Article
Optics
Qingqing Dou, Junyao Mo, Beibei Xu, Nan Gong, Tao Man, Zicheng Li, Gongxun Bai, Chonggen Ma, Jianrong Qiu, Jianhua Hao
Summary: Nonvolatile and giant modulation of luminescence can be achieved through the ferroelectric gating effect in a Ga3+/Pr3+ co-doped BaTiO3 ultra-thin film grown on a specific substrate. The change in emission intensity matches the ferroelectric polarization hysteresis loop, showing a significant enhancement when the polarization is negative. The interaction between O2- and Pr3+ promotes the formation of excited states. This method has potential applications in the development of controllable optoelectronic devices.
Article
Materials Science, Ceramics
Rui Duan, Yongze Yu, Xu Feng, Quanhua Lin, Jianrong Qiu, Shifeng Zhou
Summary: This study proposes a heterogeneity engineering strategy to construct all-inorganic transparent composite with tunable and ultrabroadband luminescence. The composite exhibits excellent performance and can be used to create integrated waveguide array devices and achieve broadband optical amplification.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2023)
Article
Chemistry, Multidisciplinary
Guanxin Du, Shaofei Wen, Junjie Zhao, Peng Ran, Dazhao Wang, Lei Wei, Xvsheng Qiao, Yang Yang, Jianrong Qiu, Shifeng Zhou
Summary: A mild strategy for constructing dual-phase optical ceramics with high crystallinity based on the stepped dual-phase crystallization of hybridized aluminosilicate glass is presented. Transparent ceramics with various chemical compositions and phase combinations can be prepared using this method, and the shape of the ceramic fibers can be easily adjusted. The practical applications of optical ceramics for lighting and X-ray imaging are demonstrated, indicating the potential of this research.
ADVANCED MATERIALS
(2023)
Article
Optics
Ke Sun, Xinkuo Li, Dezhi Tan, Haiyi Jiang, Kaiyi Xiong, Jie Zhang, Beibei Xu, Zhu Xiao, Zhou Li, Jianrong Qiu
Summary: The study reports the fabrication of pure blue emissive perovskite nanocrystals (PNCs) in glass using ultrafast laser. By engineering the chemical composition in the B-site Cd/Pb mix-cation system, the emission wavelength can be tuned in the range from 461 to 520 nm. The photoluminescence (PL) quantum yield (QY) of CsCdxPb1-xBr3 PNCs reaches 13.4% for the pure blue emission at 467 nm, which is twice that of CsPbBryCl3-y PNCs. The pure blue emissive PNCs demonstrate excellent stability when exposed to UV radiation, heat, and ethanol solvents, showing great potential for information security applications.
LASER & PHOTONICS REVIEWS
(2023)
Article
Optics
Xiangyu Sun, Yuying Wang, Lijing Zhong, Daoyuan Chen, Beibei Xu, Zhijun Ma, Xiaofeng Liu, Giuseppe Barillaro, Zhi Chen, Jianrong Qiu
Summary: In this study, we propose a general fabrication scheme for inscribing high-order mode waveguides in glass based on the femtosecond laser writing technique. We successfully design and fabricate LP01-mode and LP11-mode waveguides in highly Er3+-doped phosphate glass, achieving low insertion loss and high mode extraction factor. Moreover, we demonstrate optical amplification of the waveguides with a high on-off gain. This novel high-order mode waveguide amplifier has great potential in integrated photonic light sources and optical interconnection applications.
Article
Materials Science, Ceramics
Manyun Tang, Yan Ma, Shaofei Wen, Guanxin Du, Jingfei Chen, Xueliang Li, Shichao Lv, Shifeng Zhou
Summary: Accurate dose monitoring is crucial in fields such as radiotherapy, nuclear industry, and aerospace due to the harmful effects of ionizing radiation on humans and electronics. However, fabricating a miniaturized dosimeter for real-time monitoring remains challenging. This study presents the potential application of a gallosilicate glass in visualizing and measuring ultraviolet and ionizing radiation through induced color centers. The glass can be fabricated into a fiber with a perfect core-cladding structure, offering an alternative for high-sensitivity radiation dosimeters.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2023)
Article
Materials Science, Multidisciplinary
Tao Man, Nan Gong, Zicheng Li, Xinyu Duan, Beibei Xu, Zixuan Song, Xing Lin, Dezhi Tan, Xiaofeng Liu, Jianrong Qiu
Summary: The outstanding performance of halide perovskite makes it a champion material for optoelectronic devices, but its stability limits practical applications. Defects are key factors influencing the stability of perovskites, and various chemical methods have been proposed for defect passivation. However, there is a lack of in-situ passivation methods without changing the perovskite composition. This study found that the external electric field can passivate defects in FPEA(2)PbI(4) film and greatly enhance the PL intensity, providing a new in-situ passivation method for practical applications.
ADVANCED OPTICAL MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Ke Zhang, Jingfei Chen, Quan Dong, Tianxia Wei, Dazhao Wang, Xueliang Li, Xu Feng, Zhixue He, Jianrong Qiu, Shifeng Zhou
Summary: Comprehensive studies have been conducted on a Bi-doped glass system, and a Bi-doped germanate multicomponent glass system is proposed as a promising candidate. The deactivation mechanism of Bi in a glass matrix has been investigated and prevented by controlling the fiber drawing. A bi-doped multicomponent germanate glass fiber with a high level of Bi doping has been successfully constructed. Finally, a principle compact fiber amplifier device is fabricated for broadband optical amplification.
ADVANCED MATERIALS TECHNOLOGIES
(2023)
Review
Chemistry, Multidisciplinary
Nan Gong, Beibei Xu, Junyao Mo, Tao Man, Jianrong Qiu
Summary: This review article discusses the important role of defect engineering of inorganic sensitizers on triplet energy transfer (TET) and triplet-triplet annihilation upconversion (TTA-UC) in inorganic-organic hybrid materials. The formation mechanism and influence of different types of defects are discussed, focusing on intrinsic, extrinsic, and surface defect engineering strategies for controlling triplet population, band alignment, carrier mobility, and TET rate. The challenges of controllable defect engineering and the nature of defects are explored, highlighting future opportunities in fundamental photophysics and related applications.
TRENDS IN CHEMISTRY
(2023)
Article
Materials Science, Multidisciplinary
Minghui Du, Jin Wang, Sijia Xu, Hongwei Li, Zhihao Zhang, Yankun Qi, Shichao Lv, Jianrong Qiu, Yurong Yan, Shifeng Zhou
Summary: This article reports a method for scalable fabrication of super-elastic scintillating fibers and fabrics using thermal drawing and melt-spinning methods. The resulting fiber and fabric exhibit excellent processability, elasticity, and radiation detection ability. Applications in radiation warning and X-ray imaging are demonstrated.
ADVANCED FIBER MATERIALS
(2023)
Article
Materials Science, Ceramics
Xu Feng, Jianrong Qiu, Shifeng Zhou
Summary: Glass ceramics exhibit enhanced functionalities and nonlinear optical properties due to their synergistic effect. This article provides a comprehensive review of the recent progress in nonlinear glass ceramics, emphasizing their synergistic effect in nonlinear response and describing their applications in photonics.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2023)
Article
Optics
Xuechi Li, Lizhong Xu, Cui Liang, Beibei Xu, Yilan Zhou, Lijun Miao, Dengwei Zhang
Summary: This paper proposes a new approach for measuring the bandwidth of I-FOGs in high frequency jitter based on axial magnetic sensitivity. The experimental results demonstrate that this approach is capable of testing the bandwidth of the I-FOG at ultrahigh frequencies.
Article
Chemistry, Multidisciplinary
Quan Dong, Ke Zhang, Yupeng Huang, Xu Feng, Tao Yu, Xueliang Li, Jianrong Qiu, Shifeng Zhou
Summary: This study reports the development of a photonic glass embedded with subnano Te clusters, which exhibits unique near-infrared luminescence characteristics and full visible-spectrum conversion ability. The application potential of this glass for night vision and tissue penetration is demonstrated using a smartphone as the excitation source.
Review
Multidisciplinary Sciences
Xu Feng, Yuanzheng Yue, Jianrong Qiu, Himanshu Jain, Shifeng Zhou
Summary: This review introduces the concept and methods of entropy engineering applied to inorganic non-metallic glasses to enhance their mechanical, electrical, and optical properties. It also discusses the challenges and opportunities in calculating the entropy of inorganic non-metallic glass systems, correlating entropy to glass formation, and developing functional glasses using the entropy concept.
FUNDAMENTAL RESEARCH
(2022)
Article
Materials Science, Multidisciplinary
Huihui Cheng, Xiaoyi Huang, Min Jiang, Jiahua Yang, Liting Lin, Ting Li, Zhiping Cai, Shifeng Zhou
Summary: A Q-switched all-fiber Er-doped laser operating at a wavelength up to 1625 nm is proposed and demonstrated. Stable laser pulse outputs are achieved using a hybrid glass fiber with gain extended to U-band as the gain medium. The laser has a compact cavity and can generate pulses with high energy and short duration.
ADVANCED PHOTONICS RESEARCH
(2022)