Article
Chemistry, Multidisciplinary
Michalis Stavrou, Aristeidis Stathis, Ioannis Papadakis, Alina Lyuleeva-Husemann, Emmanouel Koudoumas, Stelios Couris
Summary: This study reports on the transient nonlinear optical responses of two different types of 2D silicon nanosheets. The results demonstrate the importance of chemical functionalization for the efficient enhancement and tailoring of the NLO properties of these Si-based materials, and reveal that the silicon nanosheets exhibit larger NLO responses compared to graphene nanosheets.
Article
Nanoscience & Nanotechnology
Genglin Li, Wenhui Du, Shuo Sun, Qingming Lu, Zhixiang Chen, Hongliang Liu, Yandong Ma, Xiaoli Sun, Yuechen Jia, Feng Chen
Summary: In this work, three different kinds of 2D TMDC nanosheets were prepared by liquid phase exfoliation technique, and their high-quality material properties were confirmed by Raman spectroscopy and X-ray diffraction analysis. The bandgap information of MSe2 was investigated via density functional theory, showing its potential for broadband photonic applications. By utilizing MSe2 as saturable absorbers, high-performance Q-switched mode-locked laser operation was achieved.
Article
Chemistry, Physical
Li Zhou, Jianlong Kang, Yulan Dong, Yiduo Wang, Yejun Li, Han Huang, Si Xiao, Yingwei Wang, Jun He
Summary: Featured with high thermal decomposition temperature and layered structure, violet phosphorus (VP) has demonstrated high-performance optoelectronic and photonics applications at the nanoscale. In this study, few-layer and nanometer-sized VP with robust stability in different environments were successfully prepared using ultrasound-assisted liquid phase exfoliation. The ultrafast carrier dynamics and third-order nonlinear optical response of VP were investigated for the first time, showing its potential for ultrafast nonlinear photonic applications like saturable absorbers and optical switches.
Review
Materials Science, Multidisciplinary
Yajuan Liu, Muqing Chen, Shangfeng Yang
Summary: Black phosphorus (BP) as an emerging two-dimensional material has wide applications in various fields, but its ambient stability needs to be enhanced due to oxidation. Chemical functionalization is an effective method for improving the stability of few-layer BP, with covalent and noncovalent functionalization being key approaches. This review provides a comprehensive overview of the chemical functionalization of BP, highlighting the impact on electronic properties and ambient stability, and discussing future challenges and developments.
Article
Engineering, Electrical & Electronic
Wei Jin, Yuhang Sun
Summary: In this study, MoxTa(1-x)Se2 nanosheets are prepared by liquid phase exfoliation method and used to fabricate a MoxTa(1-x)Se2-based saturable absorber. By adjusting polarization state and pump power, both harmonic mode-locking and large energy mode-locking operations are realized. The results demonstrate the wide applications of MoxTa(1-x)Se2 in ultrafast photonics and nonlinear optics.
OPTICAL FIBER TECHNOLOGY
(2023)
Article
Optics
Junpeng Qiao, Safayet Ahmed, Ping Kwong Cheng, Ranran Fan, Ahmed Mortuza Saleque, Md Nahian Al Subri Ivan, Jialiang Yu, Guangqiang Liu, Sujuan Feng, Yuen Hong Tsang
Summary: Recently, two-dimensional transition metal chalcogenides (TMCs) have attracted attention in advanced photonics due to their tunable bandgap, high broadband absorption, and excellent nonlinear optical (NLO) performance. Among TMCs, group-IV transition metal trichalcogenides (TMTs) have been rarely studied for NLO applications. This study investigates the NLO properties of ZrTe3-nanosheets and prepares ZrTe3-based saturable absorbers (SAs) for the first time, enabling stable mode-locking pulses in different fiber laser cavities.
OPTICS AND LASER TECHNOLOGY
(2023)
Review
Nanoscience & Nanotechnology
Huanian Zhang, Shuo Sun, Xinxin Shang, Bo Guo, Xiaohui Li, Xiaohan Chen, Shouzhen Jiang, Han Zhang, Hans Agren, Wenfei Zhang, Guomei Wang, Cheng Lu, Shenggui Fu
Summary: Driven by new two-dimensional materials, significant progress has been made in the field of ultrafast photonics. The emerging single element two-dimensional materials (Xenes) have attracted attention due to their special physical and photoelectric properties. This review introduces in detail the preparation methods and integration strategies of Xenes, summarizes the achievements of Xenes-based fiber lasers, and provides an outlook on the future opportunities and challenges of ultrafast photonics devices based on Xenes and other 2D materials.
Review
Chemistry, Multidisciplinary
Chen-Xia Hu, Yuyoung Shin, Oliver Read, Cinzia Casiraghi
Summary: Extensive research on liquid-phase exfoliation (LPE) in the past decade has enabled a low-cost and scalable approach to producing a variety of solution-processed 2D materials for various applications. Dispersant-assisted LPE allows for the production of solution-processed 2D materials in a wider range of solvents, overcoming the limitations of specific toxic and expensive solvents.
Article
Materials Science, Multidisciplinary
S. Akhavan, A. Ruocco, G. Soavi, A. Taheri Najafabadi, S. Mignuzzi, S. Doukas, A. R. Cadore, Y. A. K. Samad, L. Lombardi, K. Dimos, I Paradisanos, J. E. Muench, H. F. Y. Watson, S. Hodge, L. G. Occhipinti, E. Lidorikis, I Goykhman, A. C. Ferrari
Summary: By combining the techniques of chemical vapor deposition (CVD) and liquid phase exfoliation (LPE), the limitations of LPE-based printed optoelectronic devices, such as mobility, defects, and trap states, can be overcome. We used black phosphorus inks and Ag ink to prepare photodetectors via inkjet printing, achieving high performance in terms of external responsivity. This approach was also successfully applied to fabricate flexible photodetectors on polyester fabric, showing promise for wearable and flexible applications.
Article
Physics, Applied
Nidhi Adhlakha, Zeinab Ebrahimpour, Paola Di Pietro, Johannes Schmidt, Federica Piccirilli, Daniele Fausti, Angela Montanaro, Emmanuele Cappelluti, Stefano Lupi, Andrea Perucchi
Summary: Black phosphorus is a unique two-dimensional material with tunable infrared band gap and anisotropic conduction properties. By investigating its nonlinear terahertz (THz) electrodynamics along the more conducting armchair direction, it is found that the THz saturable-absorption properties can be understood using a thermodynamic model based on fast thermalization of the electron bath. The anomalous THz nonlinear properties can be explained by a relativistic massive Dirac dispersion, provided that the Fermi temperature is low enough. Optimal tuning of the Fermi level could therefore enable strong THz nonlinear response in other materials.
PHYSICAL REVIEW APPLIED
(2023)
Article
Chemistry, Physical
Xin Wang, Ming Ma, Xuewen Zhao, Peng Jiang, Yan Wang, Jiahong Wang, Jinying Zhang, Fuxiang Zhang
Summary: A VP/BP heterostructure was constructed using a phase engineering strategy, creating a well-matched heterophase interface to improve charge separation efficiency and photocatalytic activity for hydrogen evolution. This study highlights the feasibility of phase engineering and provides an alternative strategy to enhance the performance of photocatalysts.
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)
Review
Optics
Qing Wu, Gang Zhao, Haibin Wu, Meng Zhang
Summary: Ultrashort pulse lasers play a vital role in the field of ultrafast photonics. The innovative design strategy of using 2D materials has greatly improved the performance of saturable absorbers for generating ultrashort pulses. This review provides an overview of the optoelectronic properties and integration of 2D materials in devices, and discusses their current development in fiber and solid-state lasers. Future applications and prospects for 2D materials in ultrafast lasers are also discussed.
PHOTONICS RESEARCH
(2023)
Article
Chemistry, Physical
Jibi Kunjumon, Merin George, K. Abha, Sreelakshmi K. Gopi, G. Vinitha, D. Sajan, Reji Philip
Summary: A combined investigation of the photoluminescence and nonlinear optical properties of SmCTO ceramics has been carried out. The presence of defects such as oxygen vacancies in SmCTO has been confirmed through photoluminescence spectra. The high third order nonlinear absorption coefficient of SmCTO ceramics makes them suitable for the development of optical limiting devices.
SURFACES AND INTERFACES
(2023)
Article
Nanoscience & Nanotechnology
Michalis Stavrou, Nikolaos Chazapis, Vasileios Arapakis, Vasilios Georgakilas, Stelios Couris
Summary: Hematene and magnetene nanoplatelets were synthesized from hematite and magnetite ores using a green synthesis method and dispersed in water. These non-vdW 2D materials showed strong saturable absorption and Kerr-type nonlinear refractive index, suggesting potential applications in photonics and optoelectronics.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Materials Science, Multidisciplinary
Gaozhong Wang, Aidan A. Baker-Murray, Xiaoyan Zhang, Daniel Bennett, Jing Jing Wang, Jun Wang, Kangpeng Wang, Werner J. Blau
OPTICAL MATERIALS EXPRESS
(2019)
Article
Engineering, Electrical & Electronic
Renli Zhang, Jun Wang, Meisong Liao, Xia Li, Pei-Wen Kuan, Yinyao Liu, Yan Zhou, Weiqing Gao
IEEE PHOTONICS JOURNAL
(2019)
Article
Chemistry, Physical
Pinar Arpacay, Partha Maity, Ahmed M. El-Zohry, Mina Meindl, Sevilay Akca, Shane Plunket, Mathias O. Senge, Werner J. Blau, Omar F. Mohammed
JOURNAL OF PHYSICAL CHEMISTRY C
(2019)
Article
Chemistry, Multidisciplinary
Gaozhong Wang, Kangpeng Wang, Niall McEvoy, Zhengyuan Bai, Conor P. Cullen, Conor N. Murphy, John B. McManus, John J. Mogan, Christopher M. Smith, Georg S. Duesberg, Ido Kaminer, Jun Wang, Werner J. Blau
Article
Multidisciplinary Sciences
Kangpeng Wang, Xiaoyan Zhang, Ivan M. Kislyakov, Ningning Dong, Saifeng Zhang, Gaozhong Wang, Jintai Fan, Xiao Zou, Juan Du, Yuxin Leng, Quanzhong Zhao, Kan Wu, Jianping Chen, Shaun M. Baesman, Kang-Shyang Liao, Surendra Maharjan, Hongzhou Zhang, Long Zhang, Seamus A. Curran, Ronald S. Oremland, Werner J. Blau, Jun Wang
NATURE COMMUNICATIONS
(2019)
Article
Materials Science, Multidisciplinary
Gaozhong Wang, Daniel Bennett, Chuanfang (John) Zhang, Cormac O. Coileain, Meiying Liang, Niall McEvoy, Jing Jing Wang, Jun Wang, Kangpeng Wang, Valeria Nicolosi, Werner J. Blau
ADVANCED OPTICAL MATERIALS
(2020)
Review
Chemistry, Multidisciplinary
Gaozhong Wang, Zhongzheng Wang, Niall McEvoy, Ping Fan, Werner J. Blau
Summary: This article reviews the recent progress in sensing, photonic, and (opto-) electronic applications of PtSe2, a 2D layered material that is likely to be used in industries due to its high air-stability and compatible fabrication methods with semiconductor technology. It compares the advantages and disadvantages of various synthesis methods for PtSe2, discusses its outstanding properties and industrial advantages, reviews the research on the broadband nonlinear photonic properties of PtSe2, and summarizes its use as a saturable absorber in ultrafast lasers. Additionally, it outlines the advances achieved in PtSe2-based field-effect transistors, photodetectors, and sensors.
ADVANCED MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Beata M. Szydlowska, Arko Graf, Adam Kelly, Werner J. Blau, Malte C. Gather, Jana Zaumseil, Claudia Backes
JOURNAL OF MATERIALS CHEMISTRY C
(2020)
