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
Materials Science, Multidisciplinary
Enming Zhao, Xiaodan Liu, Dongyang Tang, Lu Liu, Guangyu Liu, Bao Zhou, Chuanxi Xing
Summary: This study reports, for the first time, the achievement of white light upconversion through dual sensitization routes in Nd/Yb/Pr triply doped NaYF4 microrods, which is more efficient than single sensitization. Additionally, the temperature sensing behaviors of the triply doped microrods using different emission bands were comparatively investigated in this work.
MATERIALS RESEARCH BULLETIN
(2021)
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
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
Nanoscience & Nanotechnology
Yuxian Su, Li Liu, Shipeng Wen
Summary: A facile strategy for fabricating a near-infrared-driven broadband photocatalyst was developed by anchoring the core-shell nanostructure of Tm@Nd@TiO2 onto the surface of mSC electrospun fibers. The Tm@Nd@TiO2/mSC nanocomposite showed improved adsorption capacity towards organic pollutants and enhanced photocatalytic performance compared to bare Tm@Nd@TiO2.
ACS APPLIED NANO MATERIALS
(2021)
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
Optics
Yansong Feng, Zhi Li, Qiqing Li, Jun Yuan, Langping Tu, Lixin Ning, Hong Zhang
Summary: Internal hydroxyl impurities have been identified as detrimental factors affecting the upconversion efficiency of upconversion luminescence nanomaterials. By quantifying and adjusting the internal hydroxyl impurity in NaYF4 nanocrystals, researchers have unraveled the microscopic interactions underlying UCL quenching and proposed a concept of Survivor effect to explain the UC dynamical process involving internal hydroxyl. The new quantitative insights obtained from this study are expected to promote the development of highly efficient UC materials.
LIGHT-SCIENCE & APPLICATIONS
(2021)
Article
Optics
Xin Cheng, Zhiquan Lin, Xuezong Yang, Shuizhen Cui, Xin Zeng, Huawei Jiang, Yan Feng
Summary: This study investigates high-power continuous-wave single-frequency Er-doped fiber amplifiers at 1560 nm using in-band and core pumping of a 1480 nm Raman fiber laser. Both co- and counter-pumping configurations are experimentally studied. The co-pumped setup achieves output power up to 59.1 W and 90% efficiency in the fundamental mode and linear polarization, while the counter-pumped configuration yields less power and efficiency due to additional loss. The amplifier shows identical performance in terms of laser linewidth and relative intensity noise up to 10 MHz for both setups.
HIGH POWER LASER SCIENCE AND ENGINEERING
(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
Materials Science, Ceramics
Dante Yugo Takamori, Rafaela Teixeira Alves, Artur da Silva Gouveia-Neto, Luciano Avallone Bueno, Danilo Manzani, Celso Molina, Tereza Silva Martins
Summary: This study reported the optical temperature sensing using Er3+/Yb3+ co-doped NaYF4 nanoparticles and SBA-15/NaYF4:Yb,Er composites, which showed high temperature sensitivity and potential applications in biological systems.
JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY
(2021)
Article
Physics, Condensed Matter
Hannes Rijckaert, Simona Premcheska, Sonali Mohanty, Joost Verduijn, Andre Skirtach, Anna M. Kaczmarek
Summary: This study demonstrates that UiO-66-NH2 can serve as a host for nano thermometers and gold nanoparticles, resulting in a hybrid material with good biocompatibility.
PHYSICA B-CONDENSED MATTER
(2022)
Article
Materials Science, Ceramics
Meidong Yu, Yun Zhang, Bo Liu, Jiandi Liu, Zuofu Hu, Wen Ruan, Xinyuan Sun
Summary: In this study, a novel core-shell hybrid structure of (mCu2-xS, NaYF4:Er/Yb)@ porous silica composites was constructed for upconversion luminescence (UCL). The amplified internal optical field of the composites, induced by the localized surface plasmon resonance (LSPR) coupling between Cu2-xS nanoparticles, allowed more photons to participate in the upconversion process. The UCL intensity of the composites in the emission band of green was 45 times higher than that of NaYF4:Er/Yb@SiO2, and the quantum yield of the composites was 1.32%. The UCL enhancement mechanism of the composites was also investigated.
CERAMICS INTERNATIONAL
(2023)
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, 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
Materials Science, Multidisciplinary
Zhe Wang, Xueshuang Li, Shengyan Yin, Xingyuan Guo, Weiping Qin
Summary: Monodisperse cubic NaYF4: 20%Yb, 2%Er nanoparticles were synthesized successfully using high-temperature thermal decomposition method. The crystal structure of the nanoparticles changed from cubic to hexagonal phase with the increase in Eu3+ concentration, resulting in decreased upconversion luminescent intensities. Energy transfer between Er3+ and Eu3+ ions was observed with near infrared light excitation.
FUNCTIONAL MATERIALS LETTERS
(2022)
Article
Optics
Yadong Jiao, Zhixu Jia, Xiaohui Guo, Zhipeng Zhao, Yasutake Ohishi, Weiping Qin, Guanshi Qin
Summary: In this Letter, we demonstrate a third-order cascaded Raman shift in an all-solid fluorotellurite fiber, which has promising potential for constructing cascaded Raman fiber lasers with a wide range of wavelengths.
Article
Optics
Yuewu Fu, Yu Yang, Tonghe Sun, Ying Tang, Jun Li, Hao Cui, Weiping Qin, Fei Wang, Guanshi Qin, Dan Zhao
Summary: This study introduces an S-band waveguide amplifier using a nanocomposite of nanoparticles and polymer as the gain medium. By optimizing the doping concentration, the strongest emission luminescence at 1480 nm is achieved, and a relative gain of 5.6 dB/cm is observed. This is the first time that S-band amplification has been achieved in a polymer-based waveguide amplifier.
Article
Materials Science, Multidisciplinary
Xiaohui Guo, Fanchao Meng, Zhixu Jia, Yadong Jiao, Yasutake Ohishi, Weiping Qin, Guanshi Qin
Summary: This study demonstrates the generation of dispersive waves at 4 pm using dispersion-engineered fluorotellurite fibers pumped by a femtosecond fiber laser. The fluorotellurite fibers have two zero-dispersion wavelengths and the dispersive wave is generated through a series of processes. The results indicate the potential of dispersion-engineered fluorotellurite fibers for constructing all-fiber 4 pm light sources.
OPTICAL MATERIALS EXPRESS
(2022)
Article
Materials Science, Multidisciplinary
Yao Sun, Yini Li, Wanying Zhang, Peifen Zhu, Hongyang Zhu, Weiping Qin, Guofeng Wang
Summary: This study simultaneously prepared three-color lead halide perovskite phosphors with higher stability and luminous intensity, and successfully applied them in WLEDs, achieving superior color quality and ideal correlated color temperature.
ADVANCED OPTICAL MATERIALS
(2022)
Review
Physics, Multidisciplinary
Xingyuan Guo, Zhe Wang, Shengyan Yin, Weiping Qin
Summary: As the global energy crisis and environmental pollution problems worsen, it is crucial to develop new methods for energy capture and pollution management. Photocatalysis has gained significant interest for its potential application in utilizing solar energy to degrade organic pollutants.
Article
Engineering, Electrical & Electronic
Xiaohui Guo, Zhixu Jia, Yadong Jiao, Zhenrui Li, Chanfei Yao, Minglie Hu, Yasutake Ohishi, Weiping Qin, Guanshi Qin
Summary: This letter demonstrates a 25.8 W all-fiber mid-infrared supercontinuum light source based on fluorotellurite fibers. The all-solid fluorotellurite fibers are fabricated using a rod-in-tube method and connected to a high power SC fiber laser. The experimental results show that a 25.8 W SC light source with a spectral range from 0.93 to 3.99 μm can be achieved at a pump power of approximately 42.6 W.
IEEE PHOTONICS TECHNOLOGY LETTERS
(2022)
Article
Optics
Junjie Wang, Zhixu Jia, Chuanze Zhang, Yan Sun, Yasutake Ohishi, Weiping Qin, Guanshi Qin
Summary: We demonstrated broadband amplification in Tm3+-doped fluorotellurite glass fibers using a 1400/1570 nm dual-wavelength pump technique. The TDFTFs showed positive net gain in the S-band from <1440 nm to 1546 nm, making them promising gain media for constructing efficient broadband S-band fiber amplifiers.
Article
Materials Science, Multidisciplinary
Yadong Jiao, Fanchao Meng, Zhixu Jia, Q. Guo, Yongsen Yu, Chuantao Zheng, Yasutake Ohishi, Weiping Qin, Guanshi Qin
Summary: In this study, efficient cascaded Raman amplification in fluorotellurite fibers is demonstrated. The results show that fluorotellurite fibers are suitable gain media for constructing cascaded Raman fiber amplifiers with a wide range of wavelengths.
OPTICAL MATERIALS EXPRESS
(2022)
Article
Optics
Siqing Li, Changjian Lv, Hongyu Luo, Linghao Cui, Zhixu Jia, Jianfeng Li, Weiping Qin, Guanshi Qin
Summary: Ultrathin gold nanowires can be used as broadband saturable absorbers for constructing ultra-short pulsed lasers in the near-infrared to mid-infrared range. By inserting the gold nanowire film into fiber laser cavities, stable mode-locked lasers with femtosecond pulse widths at different wavelengths can be achieved.
LASER PHYSICS LETTERS
(2022)
Article
Materials Science, Multidisciplinary
Yanhui Dong, Dan Zhang, Daguang Li, Heng Jia, Weiping Qin
Summary: This study introduces the concepts of critical concentration and time window as the keys to inhibiting Ostwald ripening, and successfully achieves the controllable synthesis of high-quality nanocrystals through precise controls.
SCIENCE CHINA-MATERIALS
(2023)
Article
Physics, Multidisciplinary
Daguang Li, Hao Cui, Guanshi Qin, Weiping Qin
Summary: Under intense light irradiation, pure-white objects exhibit strong light absorption capabilities similar to blackbodies, and generate photon avalanche optical frequency conversion and optical bistable luminescence.
COMMUNICATIONS PHYSICS
(2023)
Article
Chemistry, Multidisciplinary
Zhe Wang, Xueshuang Li, Shengyan Yin, Xingyuan Guo, Weiping Qin
Summary: Cubic silver phosphate nanoparticles with high photocatalytic activity were successfully prepared with the assistance of trisodium citrate. The photocatalytic activity of Ag3PO4 NPs was verified through photodegradation experiments, and their characteristics were studied using various characterization methods.
NEW JOURNAL OF CHEMISTRY
(2022)
