Article
Optics
Junting Liu, Shuai Ye, Haowen Guo, Yongping Yao, Xue Zhou, Hongkun Nie, Ruihua Wang, Kejian Yang, Jingliang He, Baitao Zhang
Summary: Two-dimensional (2D) Nb2SiTe4/Graphene (NST/G) heterostructure samples with different thicknesses of Nb2SiTe4 were fabricated and their photocarrier dynamics and nonlinear optical responses were systematically investigated. Graphene acts as an electron transfer channel effectively shortening the lifetime of photocarriers in NST. Thinner NST leads to larger photocarrier recombination rate in NST/G heterostructure due to the high surface state density and strong electron-phonon coupling effect. The 2D NST/G heterostructure with thinner NST also exhibits a larger nonlinear absorption coefficient and moderate saturable absorption parameters, enabling high-performance passively mode-locked femtosecond laser.
OPTICS AND LASER TECHNOLOGY
(2023)
Article
Chemistry, Physical
Li Dong, Hongwei Chu, Ying Li, Shengzhi Zhao, Dechun Li
Summary: This study investigates the nonlinear optical properties of cupric oxide (CuO) nanosheets using the Z-scan technique and successfully demonstrates the realization of a stable all-solid-state mode-locked laser using CuO nanosheets as saturable absorber for the first time. The results reveal the outstanding nonlinear optical absorption properties of CuO nanosheets, which have significant potential in the fields of ultrafast photonics and nonlinear optics.
JOURNAL OF MATERIOMICS
(2022)
Article
Chemistry, Multidisciplinary
Qiang Yu, Shun Wang, Yan Zhang, Zhuo Dong, Haiqin Deng, Kun Guo, Tao Wang, Xinyao Shi, Fangqi Liu, Tianhao Xian, Sicong Zhu, Jian Wu, Ziyang Zhang, Kai Zhang, Li Zhan
Summary: Tantalum disulfide (TaS2) is an emerging transition metal dichalcogenide with unique layered structure, rich phase diagrams, metallic behavior, and higher carrier concentration and mobility, making it a prototype for revealing basic physical phenomena and developing practical applications. However, its photonics properties and engineering-related processes are still rare. Experimental demonstration has shown the potential for further ultrafast photonics exploration based on metallic transition metal dichalcogenides.
Article
Materials Science, Multidisciplinary
Chi Pang, Rang Li, Ziqi Li, Xiaoli Sun, Ningning Dong, Jun Wang, Shengqiang Zhou, Feng Chen
Summary: The preparation of Au nanoparticles in LiTaO3 crystal and their optical properties were investigated, leading to the successful development of a laser system with saturable absorption properties for applications in Q-switched mode-locked laser systems.
Article
Chemistry, Physical
Dipanjan Banerjee, Sree Satya Bharati Moram, Chandu Byram, Jagganath Rathod, Twinkle Jena, Gopala Krishna Podagatlapalli, Venugopal Rao Soma
Summary: The research presents the outcomes of extensive femtosecond nonlinear optical studies on TiO2 and Ag-doped TiO2 nanoparticles. It was observed that Ag-TiO2 nanoparticles exhibited a significant preference for three-photon absorption and had a higher nonlinear susceptibility compared to pure TiO2 nanoparticles under 1 kHz pulse excitation. Additionally, the synthesized nanocomposites showed a noteworthy presence of three-photon absorption in the near-IR regime, which is a rare observation in these types of nanoparticles.
APPLIED SURFACE SCIENCE
(2021)
Article
Engineering, Electrical & Electronic
Sergey M. Kobtsev
Summary: The paper discusses the application of artificial saturable absorbers in fiber lasers, comparing their advantages and drawbacks with material-based natural counterparts, and discussing the future prospects in passive mode locking components in fiber-optical technology. Analysis demonstrates that artificial absorbers relying on short optical fibers hold higher potential and may become a real alternative to natural absorbers.
OPTICAL FIBER TECHNOLOGY
(2022)
Article
Chemistry, Physical
Bo Gao, Ying-Ying Li, Chun-Yang Ma, Yi-Qing Shu, Ge Wu, Bing-Kun Chen, Jia-Yu Huo, Ying Han, Lie Liu, Ye Zhang
Summary: In this study, few-layer Ta4C3 MXene was prepared and its optical properties and applications were systematically investigated. The Ta4C3 MXene was utilized as a saturable absorber in an erbium-doped fiber laser cavity, leading to the generation of stable femtosecond pulses. The results demonstrate the great potential of Ta4C3 MXene in nonlinear optics and ultrafast photonics.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Optics
Pengpeng Wang, Cunguang Zhu, Yongjie Sun, Yuli Zhao
Summary: Alpha-Fe2O3 nanosheets embedded in PVA films exhibit potential applications in nonlinear optics, particularly as thin-film saturable absorbers. In erbium doped fiber lasers based on Alpha-Fe2O3-PVA SAs, stable mode-locked operations are achieved, showcasing the excellent candidacy of Alpha-Fe2O3 nanosheets as two-dimensional saturable absorption materials.
OPTICS AND LASER TECHNOLOGY
(2021)
Article
Engineering, Electrical & Electronic
Shaodong Hou, Chengjin Lu, Zhijian Ma, Liu Kang, Jianqun Cheng, Min Zhang, Peiguang Yan
Summary: This paper presents two low chemical activity saturable absorbers, tellurium dioxide and antimony trioxide thin film, for stable femtosecond pulse generation. The results show that these oxides exhibit good nonlinear absorption characteristics, exceptional mode-locking performance, and excellent thermal stability and long-term stability, making them more suitable for robust mode locking in harsh environments and enabling new applications for optical modulators.
JOURNAL OF LIGHTWAVE TECHNOLOGY
(2021)
Article
Optics
Yibiao Hu, Zhan Yang, Tianju Zhang, Chenduan Chen, Zixin Wang, Ningning Dong, Jun Wang
Summary: In this work, the nonlinear optical properties of Nb4C3Tx are investigated, and it is found that the nanosheets exhibit saturable absorption response in the visible to near-infrared region. The ultrafast carrier dynamics indicate a high optical modulation speed. An all-optical modulator is demonstrated using Nb4C3Tx nanosheets. The study suggests that Nb4C3Tx is a potential material for nonlinear devices.
Article
Chemistry, Multidisciplinary
Chi-Cheng Yang, Chih-Hsien Cheng, Ting-Hui Chen, Yung-Hsiang Lin, Jr-Hau He, Din-Ping Tsai, Gong-Ru Lin
Summary: Amorphous-Ge (a-Ge) or free-standing nanoparticles (NPs) synthesized via hydrogen-free plasma-enhanced chemical vapor deposition (PECVD) can be used as transmissive or reflective saturable absorbers to start up passively mode-locked erbium-doped fiber lasers (EDFLs). The a-Ge film can serve as a saturable absorber for self-starting EDFL pulsation, while the Ge-NP-on-Au (Ge-NP/Au) films can act as a reflective-type saturable absorber for broadened pulsewidth under high-gain operation. Both the a-Ge film and free-standing Ge NP exhibit potential as transmissive and reflective saturable absorbers, respectively, for ultrafast fiber lasers.
Article
Optics
Lu LI, Jiawei Cheng, Qiyi Zhao, Jinniu Zhang, Huiran Yang, Yaming Zhang, Zhanqiang Hui, Feng Zhao, Wenjun Liu
Summary: This study explores the nonlinear optical characteristics and applications of chromium oxide (Cr2O3) in ultrafast optics. A microfiber decorated with a Cr2O3 film is prepared and its nonlinear optical characteristics are examined. The results show that this device has a modulation depth of 12.52% and a saturation intensity of 0.0176 MW/cm2. Moreover, the Cr2O3-microfiber is successfully applied as a saturable absorber in an Er-doped fiber laser, generating stable Q-switching and mode-locking laser pulses.
Article
Chemistry, Multidisciplinary
Kun Guo, Qiang Yu, Fangqi Liu, Haiqin Deng, Tianan Yi, Bo Ren, Wei Su, Sicong Zhu, Zhiqiang Wang, Jian Wu, Pu Zhou
Summary: In this study, high-quality gallium sulfide (GaS) was synthesized via chemical vapor deposition and used as a saturable absorber in a mode-locked fiber laser. The GaS-based laser exhibited stable femtosecond mode-locking operation, showcasing the potential of GaS for nonlinear optics.
Article
Optics
Jiasai Ma, Jianxun Pan, Jing Wang, Wenguang Jiang, Zhenmei Yu
Summary: An experiment demonstrated a stable and self-starting diode-pumped passively mode-locked Yb:CaF2 laser with a high signal-noise ratio using a semiconductor saturable absorber mirror (SESAM). The pulses generated were as short as 573 fs with a spectral bandwidth of 2.08 nm, achieving a signal-noise ratio as high as 70 dB, highlighting the excellent ability of Yb:CaF2 crystal in generating high-stability femtosecond lasers.
Article
Optics
Hou Shaodong, Lu Chengjin, Lin Haifeng, Wang Jinzhang, Guo Chunyu, Cheng Jianqun, Zhang Min, Yan Peiguang
Summary: This study presents the nonlinear absorption of three Sb-related materials in the 2 μm waveband, showing their potential for use in photonic devices requiring ultrafast optical switching and modulation. The materials exhibited stable pulse durations, output powers, and signal-to-noise ratios, indicating their suitability for applications in Tm-doped fiber lasers.
Article
Nanoscience & Nanotechnology
Xiangling Tian, Rongfei Wei, Zhijun Ma, Jianrong Qiu
Summary: In this study, we demonstrate a broadband saturable absorption in chemical vapor deposition grown monolayer transition-metal dichalcogenide MoSe2 by utilizing a high density of carrier injected by a femtosecond pulse. Our findings reveal a band edge shift induced by nonequilibrium occupation of electron-hole states after a Mott transition and the increase of carrier temperature under the pump excitation of 0.80 eV.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Materials Science, Ceramics
Jiaxuan Hu, Xing Zhang, Haihong Zheng, Fumin Lu, Xiusha Peng, Rongfei Wei, Fangfang Hu, Hai Guo
Summary: A novel sequence of Ba3-xSrxLu4O9: Er3+/Yb3+ phosphors was successfully prepared for investigating temperature sensing property. Energy transfer and lattice environment regulation significantly improved Er3+ up-conversion luminescence. Multi-mode optical thermometry exhibited superior temperature measurement performances in wide range, signal discriminability, sensitivity, and repeatability.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Ceramics
HaiLin Gong, XiuSha Peng, Ghulam Abbas Ashraf, FangFang Hu, RongFei Wei, Hai Guo
Summary: NaY2F7:Er3+,Yb3+ glass-ceramics with high transmittance were successfully prepared using a melt-quenching technique and subsequent thermal treatment. The improved crystallinity led to significantly higher up-conversion emission intensity compared to the precursor glass. The Er3+ ions showed excellent optical thermometry performance with high sensitivity and temperature resolution for self-calibration temperature measurement.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Multidisciplinary
Xiangling Tian, Rongfei Wei, Zhijun Ma, Jianrong Qiu
Summary: The study reveals the optical gain characteristics of monodisperse CsPbBr3 quantum dots crystallized in transparent glass. By controlling the temperature, the threshold of amplified spontaneous emission can be changed with a high gain coefficient. The crystallized CsPbBr3 quantum dots in the transparent glass exhibit good stability with small fluctuations in lifetime and long photostability. These findings pave the way for the potential applications of CsPbBr3-based glass-ceramics in light sources and optical amplifiers.
ADVANCED OPTICAL MATERIALS
(2022)
Article
Materials Science, Ceramics
Li Wang, Fumin Lu, Rongfei Wei, Tao Xiong, Fangfang Hu, Xiaoman Li, Hai Guo, Xiangling Tian
Summary: Tb3+ doped sodium silicate glass with remarkable scintillation property and intense radioluminescence was successfully prepared by a feasible melt-quenching method. The damaged glass to X-ray can be recovered to the original state after heat treatment, showing excellent recovery. The scintillator also exhibited wonderful thermal stability with high fluorescence intensity at high temperatures. These results indicate the potential application of the obtained scintillating glass in practical settings.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Ceramics
Xiangling Tian, Zhijun Ma, Jianrong Qiu, Rongfei Wei
Summary: Optical fibers were formed by replacing the glass core with a ceramic core. Nd3+ doped LaNbO4 nanocrystals were precipitated in the core after heat treatment. This fiber has promising optical properties and potential for use in NIR fiber amplifiers.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Ceramics
Fumin Lu, Li Wang, Fangfang Hu, Xiangling Tian, Hai Guo, Rongfei Wei
Summary: The study successfully synthesized Cs3GdGe3O9:Yb3+,Er3+ phosphors with good signal distinguishability and temperature detection accuracy. By designing multi-mode optical thermometric techniques, excellent sensitivity and thermal resolution were achieved.
CERAMICS INTERNATIONAL
(2022)
Article
Optics
Li Wang, Fumin Lu, Xiaoman Li, Fangfang Hu, Hai Guo, Rongfei Wei
Summary: A novel Cu+ doped borate glass scintillator was successfully fabricated by introducing Si3N4 in the melting process. The glass exhibits broadband luminescence under UV or X-ray excitation, with significantly enhanced luminescence after low temperature thermal treatment. It has a high quantum efficiency of 74.2% and superior thermal stability. The glass also presents outstanding optical thermometric performance. These findings highlight its potential applications in scintillators and temperature sensors.
JOURNAL OF LUMINESCENCE
(2023)
Article
Chemistry, Inorganic & Nuclear
Siyu Guo, Ligan Ma, Muniran Abudureyimu, Rongfei Wei, Fumin Lu, Fangfang Hu, Hai Guo
Summary: By constructing phosphors with broadband emission, a NIR light source with excellent thermal stability and tiny chromaticity shift was developed. The phosphors were incorporated into a blue LED chip to create a NIR PC-LED with high output power and photoelectric conversion efficiency, showing potential application in nondestructive food analysis.
INORGANIC CHEMISTRY FRONTIERS
(2023)
Article
Materials Science, Multidisciplinary
Rongfei Wei, Fumin Lu, Li Wang, Fangfang Hu, Xiangling Tian, Hai Guo
Summary: This study demonstrates quadruple luminescence thermometric techniques using Cs3GdGe3O9:Er3+ phosphors, which can achieve visual perception of temperature with different colors at different wavelengths. The thermometers show excellent sensitivity and resolution.
JOURNAL OF MATERIALS CHEMISTRY C
(2022)
Article
Chemistry, Multidisciplinary
Xiangling Tian, Rongfei Wei, Dandan Yang, Jianrong Qiu
NANOSCALE ADVANCES
(2020)
Article
Chemistry, Multidisciplinary
Laetitia Bardet, Herve Roussel, Stefano Saroglia, Masoud Akbari, David Munoz-Rojas, Carmen Jimenez, Aurore Denneulin, Daniel Bellet
Summary: The thermal instability of silver nanowires leads to increased electrical resistance in AgNW networks. Understanding the relationship between structural and electrical properties of AgNW networks is crucial for their integration as transparent electrodes in flexible optoelectronics. In situ X-ray diffraction measurements were used to study the crystallographic evolution of Ag-specific Bragg peaks during thermal ramping, revealing differences in thermal and structural transitions between bare and SnO2-coated AgNW networks.
Article
Chemistry, Multidisciplinary
Nathalia Cancino-Fuentes, Arnau Manasanch, Joana Covelo, Alex Suarez-Perez, Enrique Fernandez, Stratis Matsoukis, Christoph Guger, Xavi Illa, Anton Guimera-Brunet, Maria V. Sanchez-Vives
Summary: This study provides a comprehensive characterization of graphene-based solution-gated field-effect transistors (gSGFETs) for brain recordings, highlighting their potential clinical applications.
Article
Chemistry, Multidisciplinary
Sikandar Aftab, Hailiang Liu, Dhanasekaran Vikraman, Sajjad Hussain, Jungwon Kang, Abdullah A. Al-Kahtani
Summary: This study examines the effects of hybrid nanoparticles made of NiO@rGO and NiO@CNT on the active layers of polymer solar cells and X-ray photodetectors. The findings show that these hybrid nanoparticles can enhance the charge carrier capacities and exciton dissociation properties of the active layers. Among the tested configurations, the NiO@CNT device demonstrates superior performance in converting sunlight into electricity, and achieves the best sensitivity for X-ray detection.
Article
Chemistry, Multidisciplinary
Hyo Jung Shin, Seung Gyu Choi, Fengrui Qu, Min-Hee Yi, Choong-Hyun Lee, Sang Ryong Kim, Hyeong-Geug Kim, Jaewon Beom, Yoonyoung Yi, Do Kyung Kim, Eun-Hye Joe, Hee-Jung Song, Yonghyun Kim, Dong Woon Kim
Summary: This study investigates the role of SOX9 in reactive astrocytes following ischemic brain damage using a PLGA nanoparticle plasmid delivery system. The results demonstrate that PLGA nanoparticles can reduce ischemia-induced neurological deficits and infarct volume, providing a potential opportunity for stroke treatment.
Article
Chemistry, Multidisciplinary
Anurag Chaudhury, Koushik Debnath, Nikhil R. Jana, Jaydeep K. Basu
Summary: The study investigates the interaction between nanoparticles and cell membranes, and identifies key parameters, including charge, crowding, and membrane fluidity, that determine the adsorbed concentration and unbinding transition of nanoparticles.
Article
Chemistry, Multidisciplinary
Sina Sadeghi, Fazel Bateni, Taekhoon Kim, Dae Yong Son, Jeffrey A. Bennett, Negin Orouji, Venkat S. Punati, Christine Stark, Teagan D. Cerra, Rami Awad, Fernando Delgado-Licona, Jinge Xu, Nikolai Mukhin, Hannah Dickerson, Kristofer G. Reyes, Milad Abolhasani
Summary: In this study, an autonomous approach for the development of lead-free metal halide perovskite nanocrystals is presented, which integrates a modular microfluidic platform with machine learning-assisted synthesis modeling. This approach enables rapid and optimized synthesis of copper-based lead-free nanocrystals.
Article
Chemistry, Multidisciplinary
Zahir Abbas, Nissar Hussain, Surender Kumar, Shaikh M. Mobin
Summary: The rational construction of free-standing and flexible electrodes for electrochemical energy storage devices is an emerging research focus. In this study, a redox-active metal-organic framework (MOF) was prepared on carbon nanofibers using an in situ approach, resulting in a flexible electrode with high redox-active behavior and unique properties such as high flexibility and lightweight. The prepared electrode showed excellent cyclic retention and rate capability in supercapacitor applications. Additionally, it could be used as a freestanding electrode in flexible devices at different bending angles.
Article
Chemistry, Multidisciplinary
Lishan Zhang, Xiaoting Zhang, Hui Ran, Ze Chen, Yicheng Ye, Jiamiao Jiang, Ziwei Hu, Miral Azechi, Fei Peng, Hao Tian, Zhili Xu, Yingfeng Tu
Summary: Photodynamic therapy (PDT) is a promising local treatment modality in cancer therapy, but its therapeutic efficacy is restricted by ineffective delivery of photosensitizers and tumor hypoxia. In this study, a phototactic Chlorella-based near-infrared (NIR) driven green affording-oxygen microrobot system was developed for enhanced PDT. The system exhibited desirable phototaxis and continuous oxygen generation, leading to the inhibition of tumor growth in mice. This study demonstrates the potential of using a light-driven green affording-oxygen microrobot to enhance photodynamic therapy.
Article
Chemistry, Multidisciplinary
Yujin Li, Jing Xu, Xinqi Luo, Futing Wang, Zhong Dong, Ke-Jing Huang, Chengjie Hu, Mengyi Hou, Ren Cai
Summary: In this study, hollow heterostructured materials were constructed using an innovative template-engaged method as cathodes for zinc-ion batteries. The materials exhibited fast Zn2+ transport channels, improved electrical conductivity, and controlled volume expansion during cycling. The designed structure allowed for an admirable reversible capacity and high coulombic efficiency.
Article
Chemistry, Multidisciplinary
Paritosh Mahato, Shashi Shekhar, Rahul Yadav, Saptarshi Mukherjee
Summary: This study comprehensively elucidates the role of the core and electrostatic surface of metal nanoclusters in catalytic reduction reactions. The electrostatic surface dramatically modulates the reactivity of metal nanoclusters.
Article
Chemistry, Multidisciplinary
Pei Liu, Mengdi Liang, Zhengwei Liu, Haiyu Long, Han Cheng, Jiahe Su, Zhongbiao Tan, Xuewen He, Min Sun, Xiangqian Li, Shuai He
Summary: This study demonstrates a simple and environmentally-friendly method for the synthesis of zinc oxide nanozymes (ZnO NZs) using wasted hop extract (WHE). The WHE-ZnO NZs exhibit exceptional peroxidase-like activity and serve as effective catalysts for the oxidation of 3,3,5,5-tetramethylbenzidine (TMB) in the presence of hydrogen peroxide (H2O2). In addition, a straightforward colorimetric technique for detecting both H2O2 and glucose was developed using the WHE-ZnO NZs as peroxidase-like catalysts.
Article
Chemistry, Multidisciplinary
Hyunkyu Oh, Young Jun Lee, Eun Ji Kim, Jinseok Park, Hee-Eun Kim, Hyunsoo Lee, Hyunjoo Lee, Bumjoon J. Kim
Summary: Mesoporous carbon particles have unique structural properties that make them suitable as support materials for catalytic applications. This study investigates the impact of channel nanostructures on the catalytic activity of porous carbon particles (PCPs) by fabricating PCPs with controlled channel exposure on the carbon surface. The results show that PCPs with highly open channel nanostructures exhibit significantly higher catalytic activity compared to those with closed channel nanostructures.
Article
Chemistry, Multidisciplinary
Yunjie Lu, Zhaohui Li, Zewei Li, Shihao Zhou, Ning Zhang, Jianming Zhang, Lu Zong
Summary: A tough, long-lasting adhesive and highly conductive nanocomposite hydrogel (PACPH) was fabricated via the synergy of interfacial entanglement and adhesion group densification. PACPH possesses excellent mechanical properties, interfacial adhesion strength, and conductivity, making it a promising material for long-term monitoring of human activities and electrocardiogram signals.
Article
Chemistry, Multidisciplinary
Zichao Wei, Audrey Vandergriff, Chung-Hao Liu, Maham Liaqat, Mu-Ping Nieh, Yu Lei, Jie He
Summary: We have developed a simple method to prepare polymer-grafted plasmonic metal nanoparticles with pH-responsive surface-enhanced Raman scattering. By using pH-responsive polymers as ligands, the aggregation of nanoparticles can be controlled, leading to enhanced SERS. The pH-responsive polymer-grafted nanoparticles show high reproducibility and sensitivity in solution, providing a novel approach for SERS without the need for sample pre-concentration.
Article
Chemistry, Multidisciplinary
Melis Ozge Alas Colak, Ahmet Gungor, Merve Buldu Akturk, Emre Erdem, Rukan Genc
Summary: This research investigates the effect of functionalizing carbon dots with hydroxyl polymers on their performance as electrode materials in a supercapacitor. The results show that the functionalized carbon dots exhibit excellent electrochemical performance and improved stability.
