Review
Optics
Yiduo Wang, Yingwei Wang, Jun He
Summary: Family of MXenes, the 2D transition metal carbides, nitrides, and carbonitrides, has gained significant attention due to their tunable optical, electronic, electrochemical, and mechanical properties, leading to the emergence of compact nonlinear optical (NLO) devices. MXenes, as a novel 2D materials system, not only possess the advantages of classical 2D materials for NLO applications, but also demonstrate unique superiority such as high yield and scalable synthesis, stability, and switchable NLO response. This article provides a comprehensive overview of MXenes nonlinear optics, covering synthesis, linear and NLO properties, NLO applications, as well as challenges and future prospects of MXenes NLO research.
LASER & PHOTONICS REVIEWS
(2023)
Article
Materials Science, Multidisciplinary
Shu-Jin Bao, Ze-Ming Xu, Zhi-Wen Huang, Tian-Chen Yu, Meng-Yi Wang, Ying-Lin Song, Zheng Niu, Brendan F. Abrahams, Jian-Ping Lang
Summary: A stepwise assembly-amplification strategy is proposed to enhance the NLO responses of metal sulfide clusters. By incorporating the assembled clusters into PVA and forming composite membranes, the effective nonlinear absorption coefficients are significantly increased. This work provides a new approach to amplify NLO responses and promote the development of photonic devices.
SCIENCE CHINA-MATERIALS
(2023)
Review
Physics, Multidisciplinary
Meng Shang, Pei-Ling Li, Yu-Hua Wang, Jing-Wei Luo
Summary: Graphene and its composite materials have shown significant progress in the field of nonlinear optics, focusing on various types of nanoparticles and organic molecular composites. The enhancement mechanisms of nonlinear absorption and optical limiting have been discussed in recent studies.
Article
Optics
M. Nadafan, Z. Dehghani, Z. Shadrokh, Y. Abdi
Summary: The optical and structural properties of methylamine lead bromide (MAPbBr3) single crystal (SC) were investigated and the optical and dielectric parameters were studied using Kramers-Kronig (KK) equations. The optical phonons of MAPbBr3 SC were found to be associated with the optical interaction with lattices in the visible region. The third-order nonlinear coefficients of MAPbBr3 were measured using the Z-scan method, showing a high third-order nonlinear response and self-defocusing phenomena.
OPTICS AND LASER TECHNOLOGY
(2023)
Article
Materials Science, Multidisciplinary
Ananda Swamynayaka, Keerthikumara Venkatesha, Keshav Kumar Harish, Bhavya Nelligere Revanna, Chethan Venkatesh, Mahendra Madegowda, Tejaswi Ashok Hegde
Summary: A novel NLO organic material, BCA, was synthesized by reflux method and characterized using spectroscopic methods. The UV-Vis absorption spectrum showed a strong peak in the 280-350 nm range, indicating its potential for UV-based optoelectronic applications. BCA demonstrated good NLO responses and high thermal stability.
Article
Chemistry, Applied
Xinhua Liu, Zemin He, Chunsheng Li, Zongcheng Miao, Dong Wang, Yi Luan, Yuzhan Li, Yuzhen Zhao
Summary: This study successfully synthesized a series of symmetric and asymmetric charge-transfer azobenzene complexes through Sonogashira coupling reaction and olefin-alkyne click chemistry. The compounds were characterized by NMR, IR, and MS, and showed adjustable energy levels, good solubility, and easy synthesis. UV-VIS-NIR spectroscopy and electrochemical studies revealed a good correlation between cyclic voltammogram and spectroscopy. Moreover, nonlinear optical properties of the azobenzene derivatives were experimentally demonstrated using Z-scan technology.
Article
Chemistry, Multidisciplinary
Chen Cao, Shu-Jin Bao, Xiao-Yan Tang, Ze-Ming Xu, Chun-Yan Ni, Jian-Ping Lang
Summary: The reactions of (NH4)(2)WS4 with CuCN and other compounds resulted in the synthesis of W/Cu/S cluster-based coordination polymers with various dimensions, showing distinct third-order nonlinear optical responses.
CHEMISTRY-AN ASIAN JOURNAL
(2021)
Article
Optics
Guifen Lu, Peng Zhang, Yongjie Gao, Siyuan Yu, Ying Yang
Summary: Three novel corroles and their graphene oxide nanohybrids were synthesized and characterized. The nanohybrids showed enhanced nonlinear optical properties compared to the corresponding corroles. Furthermore, the nanohybrids exhibited a flip over behavior from saturation absorption to nonlinear reverse saturation absorption, indicating promising applications as nonlinear optical materials.
OPTICS AND LASER TECHNOLOGY
(2022)
Article
Engineering, Electrical & Electronic
Lin Chang, Andreas Boes, Haowen Shu, Weiqiang Xie, Haijin Huang, Jun Qin, Bitao Shen, Xingjun Wang, Arnan Mitchell, John E. Bowers
Summary: Photonic integrated circuits have a wide range of applications, and the development of new second order nonlinear optical waveguide platforms opens up opportunities for low-power optical signal processing. Research on lithium niobate on insulator and aluminum gallium arsenide on insulator has demonstrated ultra-efficient conversion, paving the way for high-performance optical signal processing.
IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS
(2021)
Article
Nanoscience & Nanotechnology
Miroslaw Maczka, Andrzej Nowok, Jan K. Zareba, Dagmara Stefanska, Anna Gagor, Monika Trzebiatowska, Adam Sieradzki
Summary: This study investigates a novel pyrrolidinium-based cyanide perovskite material with thermally driven bimodal switching characteristics and excellent optical properties. Doping with Cr3+ ions introduces phosphorescence as an additional functional property, enhancing the overall performance of the material.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Physical
Qingbo Liu, Yuan He, Jianfeng Yan, Zhifeng Chen, Chujun Zhao, Hong Zhou
Summary: A simple vapor route was used to prepare large-area, high-quality thin films of zero-dimensional (0D) lead-free Cs3Cu2I5 perovskites. The films exhibited strong blue emission and high third-order nonlinear absorption coefficient. These thin films have potential applications in optical switching and limiting.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Materials Science, Multidisciplinary
Chang Xing, Jianxun Liu, Linpo Yang, Zhichao Shao, Wenjuan Xu, Yujie Zhao, Kai Li, Yinglin Song, Hongwei Hou
Summary: The study successfully designed and synthesized two metal complexes third-order NLO switches, which show superior performance conversion, fast response, and versatility compared to congeneric optical switches. The third-order NLO properties were proven through tests to exhibit reverse saturable absorption and self-defocusing refraction, with the behavior quickly turning into self-focusing refraction after light irradiation. The influence of metal ions on NLO behavior and the origin of third-order NLO properties were investigated through various techniques, demonstrating the excellent fatigue resistance and broadened application range of these metal complexes as third-order NLO switches.
SCIENCE CHINA-MATERIALS
(2021)
Article
Optics
Yueqiu Hu, Yang Gao, Yuejia Shi, Guanghao Rui, Jun He, Yiping Cui, Bing Gu
Summary: The spatial self-phase modulation (SSPM) effect is extensively utilized in characterizing 2D nanomaterials, with the narrow rings and wide rings in SSPM patterns identified as originating from optical Kerr nonlinearity (OKN) and thermally induced nonlinearity (TIN), respectively. This study offers an efficient approach to distinguish OKN from TIN in 2D nanomaterial dispersions and extract nonlinear optical parameters.
OPTICS AND LASER TECHNOLOGY
(2022)
Article
Optics
David Zuber, Sven Kleinert, Ayhan Tajalli, Morten Steinecke, Marco Jupe, Ihar Babushkin, Detlev Ristau, Uwe Morgner
Summary: We investigated third harmonic generation (THG) from dielectric layers. By creating a thin gradient of HfO2 with increasing thickness, we were able to study this process in detail. This technique allowed us to understand the influence of the substrate and quantify the third (x(3)(30): 0), 0), 0)) and even fifth order (x(5)(30): 0), 0), 0), 0), - 0)) nonlinear susceptibility of layered materials at the fundamental wavelength of 1030 nm. This is the first measurement of fifth order nonlinear susceptibility in thin dielectric layers, to the best of our knowledge.
Article
Materials Science, Multidisciplinary
Lino Misoguti, Guilherme Rodrigues da Silva Mattos, Luciana R. P. Kassab, Jose Joatan Rodrigues Jr, Marcio A. R. C. Alencar
Summary: Germanate glasses doped with AgNO3 and co-doped with AgNO3 and Au2O3 were synthesized, and the influence of Au2O3 addition on the nucleation and spectroscopic properties of the silver nanoparticles was investigated. Nonlinear ellipsometry technique was used to characterize the electronic contribution to the samples' nonlinear refraction and absorption, and the third-order nonlinear susceptibility was obtained for both the glass, composite samples, and individual nanoparticles. Additionally, the all-optical switching figures of merit were calculated for the samples.
Review
Polymer Science
Xu Chen, Tsuyoshi Michinobu
Summary: Stimuli-responsive polymers are functional polymers that change their physicochemical properties in response to external stimuli, and postmodification techniques play a crucial role in designing these polymers for various applications.
MACROMOLECULAR CHEMISTRY AND PHYSICS
(2022)
Article
Materials Science, Multidisciplinary
Waner He, Yusuke Washino, Kimie Murata, Naoya Nozaki, Hidetoshi Matsumoto, Tsuyoshi Michinobu
Summary: Carbazole-based platinum polyyne polymers can serve as a good platform for the formation of donor-acceptor type narrow band gap polymers through their reaction with tetracyanoethylene. The reactivity of tetracyanoethylene depends on the connectivity pattern of the carbazole, leading to differences in regioregularity of the resulting polymers. The 3,6-carbazole-based polymer exhibits higher hole mobility compared to the 2,7-carbazole-based polymer in thin film transistors.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Article
Chemistry, Physical
Qian Liu, Waner He, Yongqiang Shi, Sultan Otep, Wen Liang Tan, Sergei Manzhos, Christopher R. McNeill, Xugang Guo, Prashant Sonar, Tsuyoshi Michinobu, Aung Ko Ko Kyaw
Summary: This study demonstrates the directional tunability of carrier polarity in organic ambipolar transistors using DPP- and BTI-based dual-acceptor polymers. By modifying the molecular structure and adding specific ionic additives, the polarity of charge carriers can be selectively tuned, enabling the transition from ambipolar to unipolar transport in organic field-effect transistors. This finding is highly significant for the development of complementary circuits.
CHEMISTRY OF MATERIALS
(2022)
Article
Polymer Science
Kosuke Ogita, Naomasa Yomogita, Sultan Otep, Tsuyoshi Michinobu
Summary: Defect-free and linear polyarylenebutadiynylenes with improved solubility were synthesized through postfunctionalization using a Cu(I)-catalyzed click reaction. The resulting triblock copolymer exhibited higher solubilities in organic solvents while retaining the electronic properties of the original polymer unit.
Article
Chemistry, Multidisciplinary
Waner He, Qian Liu, Sultan Otep, Hidetoshi Matsumoto, Sergei Manzhos, Prashant Sonar, Aung Ko Ko Kyaw, Tsuyoshi Michinobu
Summary: A novel DPP-based conjugated polymer, PDPPy-BDD, was synthesized and showed ambipolar field-effect transistor characteristics with average hole and electron mobilities of 3.5 x 10(-3) and 3.07 x 10(-2) cm(2) V-1 s(-1), respectively. The addition of tetramethylammonium iodide (NMe4I) successfully enhanced both the hole and electron mobilities by promoting stronger interchain pi-pi stackings, weakening face-on packing orientation in the thin film state, and increasing channel conductivities in the OFETs.
CHINESE JOURNAL OF CHEMISTRY
(2023)
Review
Nanoscience & Nanotechnology
Chia-Yang Lin, Tsuyoshi Michinobu
Summary: With the development of solar steam generation technology, conjugated photothermal materials have attracted attention due to their advantages over metallic and inorganic materials. This review discusses recent progress in solar steam generation devices based on conjugated organic materials, including their use in fibers, membranes, and porous structures. The design of nanostructures based on nanoarchitectonics is crucial for achieving high steam generation efficiency, and considerations for designing steam absorbers are also discussed.
BEILSTEIN JOURNAL OF NANOTECHNOLOGY
(2023)
Article
Polymer Science
Yijie Jin, Manjusha Joshi, Takuma Araki, Naofumi Kamimura, Eiji Masai, Masaya Nakamura, Tsuyoshi Michinobu
Summary: Novel biomass-based polymers based on PDC were synthesized using Cu(I)-catalyzed azide-alkyne cycloaddition and fully characterized. These PDC-based polymers exhibited high thermal stability and strong adhesive properties to various metal plates, with the highest adhesion to copper. The addition of triazole ring improved the adhesive ability and selectivity of the PDC-based polymers to copper, enhancing their versatility as adhesives.
Review
Chemistry, Multidisciplinary
Han Jia, Tsuyoshi Michinobu
Summary: Cellulose-based conductive gels, with their flexibility, biodegradability, and biocompatibility, are considered important candidates for next generation nanoarchitectonics materials. They have been widely studied for various applications including sensors, energy storage devices, energy generators, and actuators and have shown superior performance compared to gels made from petroleum-derived chemicals. This review introduces the general preparation method of cellulose-based conductive gels, presents the latest research results, and provides information for future nanoscience and research studies.
Review
Polymer Science
Tsuyoshi Michinobu
Summary: Research on semiconducting polymers is a multidisciplinary field that requires knowledge in polymer synthesis and electronics applications. Understanding the relationship between chemical structures and physical properties is important for discovering suitable application fields. The author's group initially focused on developing high-performance semiconducting polymers with high charge carrier mobilities in thin film transistors and has recently expanded to polymers that emit light in the near-infrared region.
Review
Polymer Science
Kosuke Terayama, Satoshi Habuchi, Tsuyoshi Michinobu
Summary: Fluorescence imaging in the second near-infrared region is an effective tool in clinical diagnosis and therapy assessment. Conjugated polymer nanoparticles based on donor-acceptor polymers are promising fluorescent probes with high brightness and low cytotoxicity. This review summarizes the NIR-II fluorescent polymers reported in the past few decades and provides insights into the molecular design of donor-acceptor units for developing high-brightness NIR-II nanoparticles.
JOURNAL OF POLYMER SCIENCE
(2023)
Article
Chemistry, Physical
Mingqian Wang, Chia-Yang Lin, Yoshimitsu Sagara, Tsuyoshi Michinobu
Summary: It has been found that narrow bandgap conjugated polymers containing the TBZ unit exhibit high light absorption and photothermal properties, making them effective materials for solar steam generation.
Article
Chemistry, Multidisciplinary
Han Jia, Sabina Shahi, Lok Kumar Shrestha, Katsuhiko Ariga, Tsuyoshi Michinobu
Summary: With the emergence of the energy crisis and the development of flexible electronics, there is a need to develop new energy supply devices that are flexible, have stable energy storage, and efficient energy transfer. This study introduces carbonized nanospheres into hydrogels to be used as solid electrolytes for supercapacitors, and finds that they act as physical crosslinking points and provide a pathway for ion transport, improving the capacitance and retention of the supercapacitor.
Article
Polymer Science
Han Jia, Ning Xu, Yoshiki Nagai, Marina Doi, Toshiki Sawada, Takeshi Serizawa, Shinji Ando, Satoshi Habuchi, Tsuyoshi Michinobu
Summary: Aggregation-induced emission (AIE) polymers have been extensively studied for their potential applications in developing new polymer nanoparticles or polymer dots (Pdots) with excellent fluorescence properties. We synthesized conjugated copolymers based on carbazole (Cz) and tetraphenylethene (TPE), a common AIEgen, and found that the presence of an ethynylene spacer between Cz and TPE units resulted in aggregation-caused quenching (ACQ) properties. The ethynylene spacer played a critical role in determining the fluorescent properties of the copolymers in solid states.
Article
Polymer Science
Ye Cheng, Keiichi Kuboyama, Shuichi Akasaka, Takuma Araki, Eiji Masai, Masaya Nakamura, Tsuyoshi Michinobu
Summary: In this study, novel PDC-based polyurethanes were synthesized using transformed bacteria to produce 2-Pyrone-4,6-dicarboxylic acid (PDC) on a large scale. By adopting the ring-opening polymerization (ROP) of delta-valerolactone (delta-VL) and the reaction with MDI, biomass-based polyurethanes with tunable thermal stability and crystallization temperatures were successfully obtained. Furthermore, it was found that PDC-based polyurethanes exhibit strong adhesion to certain metals.
Proceedings Paper
Optics
Jinzhao Wang, Yang Wang, Jiewen Li, Rui Li, Yang Feng, Yanmei Li, Jiaxin Chen, Wanxin Li, Yunxu Sun, Yong Yao, Tsuyoshi Michinobu, Xiaochuan Xu
Summary: Recent developments in silicon quantum photonics show that silicon-organic hybrid integration could be a competitive platform for quantum photonic circuits. The hybrid waveguide combines high nonlinearity in organic materials and tight light confinement in silicon slot waveguide, leading to significantly increased pump power saturation threshold.
OPTICAL INTERCONNECTS XXII
(2022)
