Article
Chemistry, Multidisciplinary
Yocefu Hattori, Jie Meng, Kaibo Zheng, Ageo Meier de Andrade, Jolla Kullgren, Peter Broqvist, Peter Nordlander, Jacinto Sa
Summary: By adjusting the operating temperature, the hot electron generation and transfer in plasmonic semiconductor materials can be optimized, contrasting with photodriven processes in nonplasmonic systems. This effect appears to be related to an enhancement in hot carrier generation due to phonon coupling. This discovery provides a new strategy for the optimization of photodriven energy production and chemical synthesis.
Article
Chemistry, Multidisciplinary
Fons Dingenen, Rituraj Borah, Rajeshreddy Ninakanti, Sammy W. W. Verbruggen
Summary: In this work, we present a method to study the oxygen activation rate on plasmonic nanoparticles under visible light, and experimental results have been demonstrated. The oxygen activation rate on bimetallic gold-silver rainbow nanoparticles was determined and validated with experimental data using a kinetic model. Additionally, the experimental results of the broadband visible light driven oxygen activation capacity of this plasmonic rainbow system were shown, with a brief theoretical discussion on the possible mechanisms behind such plasmon-driven reactions.
FRONTIERS IN CHEMISTRY
(2022)
Article
Multidisciplinary Sciences
Linan Zhou, Minhan Lou, Junwei Lucas Bao, Chao Zhang, Jun G. Liu, John Mark P. Martirez, Shu Tian, Lin Yuan, Dayne F. Swearer, Hossein Robatjazi, Emily A. Carter, Peter Nordlander, Naomi J. Halas
Summary: This study demonstrates that the H2-D2 exchange reaction catalyzed by Cu nanoparticles is primarily driven by thermalized hot carriers, with an intriguing intensity-dependent external quantum yield exceeding 100% at high light intensities. Quantum mechanical research suggests that vibrational excitations of the surface Cu-H bond are the likely activation mechanism, supporting the effectiveness of low-energy thermalized hot carriers in photocatalyzing this reaction.
PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
(2021)
Review
Chemistry, Physical
Mohsin Ijaz
Summary: Photocatalytic water splitting is a cheap and clean method for solar to hydrogen conversion. Plasmon excitations in metallic nanostructures enhance charge separation, absorption range, and optical density in semiconductors. Additional carriers generated from plasmon-decay can externally charge semiconductors, leading to enhanced photocatalytic hydrogen production.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Green & Sustainable Science & Technology
Dehua Tian, Huabing Yin, Lu Liu, Baojun Li, Juan Li, Zaizhu Lou
Summary: This article successfully constructs strong surface plasmon resonance (SPR) on carbon nitride polymers through photoelectron accumulation, enhancing photocatalytic performance. NCN modification separates the highest occupied molecular orbit/lowest unoccupied molecular orbit distribution in the electronic structure of carbon nitride, achieving efficient charge separation. The SPR of NCN-CNx is highly sensitive to oxygen and can be used as a plasmonic sensor for oxygen detection. Additionally, SPR greatly promotes photocatalytic hydrogen generation on NCN-CNx, with higher rates observed under specific irradiation wavelengths.
ADVANCED SUSTAINABLE SYSTEMS
(2022)
Article
Chemistry, Physical
Xi Wang, Kaili Yao, Lihua Liu, Changxu Liu, Hongyan Liang
Summary: The research explores the impact of plasmonic morphology on solar energy conversion efficiency, with experimental evidence showing that nanorods demonstrate better energy performance likely due to the sharp curvature at tips.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Multidisciplinary
Haibin Tang, Zihui Tang, Joeseph Bright, Botong Liu, Xiujuan Wang, Guowen Meng, Nianqiang Wu
Summary: Metal oxides, which are more cost-effective and abundant than noble metals, have been shown to exhibit localized surface plasmon resonance and photocatalytic activity towards the degradation of methyl orange. Plasmonic hot holes in oxides can directly react with methyl orange, playing a significant role in photocatalysis, a phenomenon rarely reported in metals.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2021)
Article
Chemistry, Multidisciplinary
Yingxuan Li, Miaomiao Wen, Ying Wang, Guang Tian, Chuanyi Wang, Jincai Zhao
Summary: The study demonstrates that cost-effective Bi2O3-x with oxygen vacancies can efficiently catalyze the conversion of CO2 to CO under low-intensity near-IR light, thanks to the defects inducing localized surface plasmon resonance. The unique LSPR allows for a linear dependence of photocatalytic CO production rate on light intensity and operating temperature.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Multidisciplinary
Rendian Wan, Shilong Liu, Yu Wang, Ye Yang, Yong Tian, Prashant K. Jain, Xiongwu Kang
Summary: By tuning the electronic structure, we designed Cu-Pt-Ni ternary alloy nanoparticles for alkaline hydrogen evolution reaction (HER), which exhibit enhanced activity under localized surface plasmon resonance (LSPR) excitation.
Article
Chemistry, Multidisciplinary
Xi Wang, Changxu Liu, Congcong Gao, Kaili Yao, Seyed Shayan Mousavi Masouleh, Rodrigo Berte, Haoran Ren, Leonardo de S. Menezes, Emiliano Cortes, Isobel C. Bicket, Haiyu Wang, Ning Li, Zhenglong Zhang, Ming Li, Wei Xie, Yifu Yu, Yurui Fang, Shunping Zhang, Hongxing Xu, Alberto Vomiero, Yongchang Liu, Gianluigi A. Botton, Stefan A. Maier, Hongyan Liang
Summary: Plasmonic nanoparticles are effective in hot-electron-assisted applications, but their narrow resonance region and limited hotspot number have limited the utilization of broadband solar energy. By designing and synthesizing silver fractals inspired by tree branches, researchers have developed structures that can create multiple plasmonic resonances and self-constructed hotspots, allowing for better utilization of hot electrons across a wider spectrum of solar radiation. The results show that fractals with acute tips and narrow gaps can support broadband resonances and numerous randomly distributed hotspots, leading to enhanced efficiency in hot electron generation.
Article
Materials Science, Multidisciplinary
Yi Yang, Kaiyu Wang, Majid Khan, Ningneng Hu, Weihai Ni
Summary: Surface scattering of electrons in metal nanocrystals generates hot electrons (HEs) of great significance in practical applications such as photodetection or photocatalytic reactions. This study systematically investigates the HE rates of colloidal Au nanocrystals and their enhancement by Pt cluster adsorption. Among the three types of nanocrystals (nanospheres, nanocubes, and nanorods), Au nanocubes exhibit the highest incident photon-to-electron conversion efficiency. The adsorption of Pt clusters on Au nanocrystals leads to a nearly one order of magnitude enhancement in photocurrent, explained by the electromagnetic and catalytic effects of Pt clusters.
ADVANCED OPTICAL MATERIALS
(2022)
Article
Chemistry, Physical
Nazakat Ali, Tsegaye Tadesse Tsega, Yucai Cao, Saghir Abbas, Wenjing Li, Asma Iqbal, Hira Fazal, Zhiling Xin, Jiantao Zai, Xuefeng Qian
Summary: Cu3-xSnS4 materials with copper vacancies were prepared, showing extended light absorption capacity and improved generation of long-lived active electrons for photocatalytic reduction.
Review
Chemistry, Multidisciplinary
Yue Xin, Kaifu Yu, Lantian Zhang, Yanru Yang, Haibo Yuan, Hongliang Li, Liangbing Wang, Jie Zeng
Summary: Copper-based plasmonic photocatalysis offers a cost-effective and tunable platform with remarkable catalytic performance for efficient light-driven chemical reactions.
ADVANCED MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Matias Herran, Ana Sousa-Castillo, Chenghao Fan, Seunghoon Lee, Wei Xie, Markus Doeblinger, Baptiste Auguie, Emiliano Cortes
Summary: Hybrid nanoparticles combining plasmonic and catalytic components have potential applications in sunlight-to-chemical energy conversion. Core-satellite structures show higher reaction enhancement under illumination compared to core-shell structures. The difference lies in the excitation of highly localized and asymmetric electric fields, with the core Au particle capturing visible light through localized plasmon resonances and the surrounding Pd satellites transducing the enhanced electric field into catalytic activity.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Shuobo Wang, Lei Wu, Jikun Li, Chaoyuan Deng, Jing Xue, Daojian Tang, Hongwei Ji, Chuncheng Chen, Yuchao Zhang, Jincai Zhao
Summary: Constructing heterostructures on plasmonic photocatalysts can enhance charge separation, but the mechanism of interface charge transfer is not well understood. In this study, plasmonic Au and metal-organic frameworks (MOFs) heterostructures were fabricated and the charge transfer mechanism was explored. It was found that hot electrons could transfer across the Au/MOF interface and be captured by the MOF structure, while hot holes tended to transfer to and be trapped at the organic ligand. The spatially separated electrons and holes exhibited improved photocatalytic activity. This work demonstrates the importance of versatile functionalization of MOF structures for interface charge transfer on plasmonic photocatalysts.
CHEMISTRY-A EUROPEAN JOURNAL
(2022)
Article
Chemistry, Multidisciplinary
Long Wen, Li Liang, Xianguang Yang, Zhong Liu, Baojun Li, Qin Chen
Article
Chemistry, Multidisciplinary
Yanjun Bao, Jiahao Yan, Xianguang Yang, Cheng-Wei Qiu, Baojun Li
Summary: Introducing an effective point source (a pinhole) allows for full decoupling of spin, wavelength, and coordinate in meta-holograms, enabling spin-decoupled, full-colored metasurface holography and dynamic holography controlled with the position of the point source. This breakthrough not only offers an alternative approach to overcome the interrelation limitations of geometric metasurfaces, but also paves the way for advanced functionalities with meta-optics in reality.
Article
Chemistry, Physical
Xianguang Yang, Long Wen, Jiahao Yan, Yanjun Bao, Qin Chen, Andrea Camposeo, Dario Pisignano, Baojun Li
Summary: This study demonstrates the use of an external silica nanofiber to excite an organic-inorganic hybrid nanowaveguide, achieving asymmetric coupling of excitation signals in two opposite directions and producing light of different colors. By mixing red, green, and blue components in a three-in-one manner, a rainbow-like light is achieved in the hybrid waveguide. This research represents a significant advancement towards integrated nanophotonic devices for all-optical routing and full-color display.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2021)
Review
Chemistry, Multidisciplinary
Qin Chen, Xianghong Nan, Mingjie Chen, Dahui Pan, Xianguang Yang, Long Wen
Summary: Recent advances in low-dimensional materials and nanofabrication technologies have led to breakthroughs in nanophotonics field. Spectral routing and filtering schemes offer superior design freedom and efficient spectral utilization, critical for various applications.
ADVANCED MATERIALS
(2021)
Article
Materials Science, Multidisciplinary
Qiuguo Li, Hao Rao, Xinzhou Ma, Haijuan Mei, Zhengting Zhao, Weiping Gong, Andrea Camposeo, Dario Pisignano, Xianguang Yang
Summary: Cu2Te microdisks were successfully prepared using GaTe as Te source, exhibiting a new red emission band in the photoluminescence spectrum and functioning as an efficient optical microcavity for red lasing. These microdisks also serve as ideal substrates for surface enhanced Raman scattering, with high enhancement factor and detection limit to nanomolar level.
ADVANCED OPTICAL MATERIALS
(2022)
Article
Energy & Fuels
Pratik M. Pataniya, Xianguang Yang, Baojun Li, Drishya Kannichankandy, C. K. Sumesh
Summary: In this study, an active system of non-metallic plasmonic WSe2/WO3-x supported by highly conductive Ag/cellulose paper electrodes is reported. The WSe2/WO3-x system significantly improves the electrocatalytic behavior and photo responsive performance in the near-infrared (NIR) region. The overpotential of HER is dramatically decreased and a low overpotential can be achieved under NIR light illumination. This research represents a significant advance in light-enhanced electrocatalysis and has potential applications in commercial hydrogen generation.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Chemistry, Physical
Qiuguo Li, Hao Rao, Xianguang Yang, Zhaohui Guo, Weiping Gong, Xinzhou Ma, Baojun Li
Summary: Introducing rare-earth element substitution can enhance the optoelectronic activity of two-dimensional nanomaterials, making them promising candidates for next-generation devices.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Article
Optics
Xinyue Liu, Bijun Mao, Xianguang Yang, Mohammad Taghinejad, Mingcheng Panmai, Sheng Lan, Wenshan Cai, Baojun Li, Jiahao Yan
Summary: The thickness dependency of radiative energy transfer in vertical vdW heterostructures of WS2/hBN/WS2 is studied, and a controllable directivity of excitonic emission is achieved by changing the stacking order. This study provides a foundation for the realization of all vdW nanophotonics.
LASER & PHOTONICS REVIEWS
(2022)
Article
Chemistry, Multidisciplinary
Qiuguo Li, Hao Rao, Haijuan Mei, Zhengting Zhao, Weiping Gong, Andrea Camposeo, Dario Pisignano, Xianguang Yang
Summary: This study demonstrates the successful synthesis of 2D WS2:Er nanosheets through rare earth element doping, which exhibit up-conversion and down-conversion emissions ranging from visible to near-infrared regions. The potential integration of these nanosheets in silicon platforms is also demonstrated by the realization of an infrared photodetector based on a WS2:Er/Si heterojunction.
ADVANCED MATERIALS INTERFACES
(2022)
Article
Multidisciplinary Sciences
Yanjun Bao, Fan Nan, Jiahao Yan, Xianguang Yang, Cheng-Wei Qiu, Baojun Li
Summary: By cascading two layer metasurfaces and utilizing the gradient descent optimization algorithm, a spatially varying Jones matrix with eight DOFs has been constructed and verified numerically and experimentally in optical frequencies. This ultimate control opens up opportunities to design optical functionalities that were previously unattainable and may find wide potential applications in optical fields.
NATURE COMMUNICATIONS
(2022)
Article
Chemistry, Multidisciplinary
Hao Rao, Zicheng Liu, Ming Chen, Canze Zheng, Liping Xu, Junkai Liu, Jacky W. Y. Lam, Baojun Li, Xianguang Yang, Ben Zhong Tang
Summary: In this study, a deep-blue aggregation-induced emission (AIE) dye TPP-4OMe was prepared and fabricated into AIE microfibers, which exhibited high luminescent efficiency, stability, and the ability to act as both active and passive waveguides. The AIE microfibers also showed the capability to emit distinctive white light.
Article
Multidisciplinary Sciences
Xianguang Yang, Rui Xu, Long Wen, Zaizhu Lou, Qin Chen, Baojun Li
Summary: In this study, effective collection and simple removal of carbon nanotubes (CNTs) dispersed in a suspension were achieved using thermal convection. Experimental and simulation results showed that thermal convection caused CNTs to aggregate on a fiber tip, forming a firmly attached cluster. This cluster could be easily removed by detaching the fiber tip. This method has potential applications in biomedicine for the collection and removal of nano-drug residues.
FUNDAMENTAL RESEARCH
(2022)
Article
Optics
Chen Qin, Wen Long, Yang Xianguang, Li Baojun
Summary: The paper introduces the color technology requirements of high pixel density image sensors and analyzes the limitations of commercial dye filters and micro-nano optical structural color filter technology. It then introduces a new type of micro-nano structure spatial spectral color management technology and systematically analyzes and discusses its technical principles and development status. Finally, the challenges and development trends of this technology are summarized.
ACTA OPTICA SINICA
(2021)
Article
Chemistry, Multidisciplinary
Mingjie Chen, Long Wen, Dahui Pan, David R. S. Cumming, Xianguang Yang, Qin Chen
Summary: In this study, a single-layer quick response code-like nanorouter is proposed for full-color light routing in a pixel level of image sensors, showing higher routing efficiency than traditional lens schemes. The nanorouter achieved over 60% signal enhancement with robust polarization insensitivity in all three primary color bands through multi-objective optimization. Negligible color distortion was observed in the reconstructed color image, making this simple nanorouter scheme promising for the development of image sensors, photovoltaics, and displays.
Review
Nanoscience & Nanotechnology
Xianguang Yang, Baojun Li
