Review
Chemistry, Multidisciplinary
Li Wang, Xun Xu, Qunfeng Cheng, Shi Xue Dou, Yi Du
Summary: This review summarizes the recent progress in NIR-driven photocatalysts and their applications, as well as strategies for harvesting NIR photons and related photocatalytic applications; it also discusses the application of NIR-active photocatalysts as electrocatalysts.
Article
Optics
Ali Allahpour Fadafan, Abdolali Abdipour, Amir Nader Askarpour
Summary: We introduce an amplifier design based on epsilon-near-zero metamaterials and photonic crystals suitable for optical communication at 1.55 μm. The amplifier utilizes gyroelectric layers with close-to-zero permittivity sandwiched between a gain medium, providing nonreciprocity. The design also incorporates a photonic crystal for fine tuning and optimizing amplifier parameters, resulting in a metatronic amplifier with good characteristics and sufficient bandwidth for optical communication applications.
JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS
(2022)
Article
Materials Science, Multidisciplinary
Wenxu Yin, Xiaoyu Zhang, Xuyong Yang, Andrey L. Rogach, Weitao Zheng
Summary: This article summarizes the recent progress in the development of near-infrared quantum dot LEDs, focusing on how their device structure and emitter properties facilitate improvement of device performance. The challenges and opportunities associated with these LEDs are also discussed.
Review
Chemistry, Multidisciplinary
Hae Un Kim, Taehyun Kim, Chanhyuk Kim, Minjun Kim, Taiho Park
Summary: This review outlines molecular design strategies for developing highly efficient organic small-molecule near-infrared light-emitting materials and analyzes the molecular design, physical properties, and luminescence characteristics of representative high-efficiency molecules reported in the past 5 years. The perspective and outlook for the development of next-generation high-efficiency near-infrared organic light-emitting materials are also provided.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Junfeng Cheng, Siqian Tang, Zhaolan Wang, Xiaoxue Fan, Dun Wu, Dong Wang, Chunlin Liu, Zheng Cao
Summary: This study demonstrates the conversion of waste plastics into graphene using laser-induced carbonization, and the application of graphene in solar seawater evaporation. The results show promising potential for addressing plastic waste and utilizing graphene materials in the energy and environmental fields.
ADVANCED MATERIALS TECHNOLOGIES
(2023)
Article
Chemistry, Multidisciplinary
Wuyu Mao, Jie Tang, Liqun Dai, Xinyu He, Jie Li, Larry Cai, Ping Liao, Ruotian Jiang, Jingwei Zhou, Haoxing Wu
Summary: A novel strategy has been developed to create highly fluorescent Huaxi-Fluor probes that exhibit significantly increased fluorescence upon forming the bioorthogonal reaction product, pyridazine. These probes have large Stokes shifts and high quantum yields, with emission wavelengths fine-tunable from 556 to 728 nm by manipulating the fluorophore skeleton. Highly photo-stable and biocompatible, these probes are suitable for live cell organelle visualization without washing steps and imaging tumors in live small animals to depths of 500 μm by two-photon excitation.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Multidisciplinary
Hezhuang Liu, Jingyi Wang, Daqian Guo, Kai Shen, Baile Chen, Jiang Wu
Summary: In this paper, InGaAs photodiodes with different doping concentration absorber layers were studied. The simulated and experimental results showed that reducing the absorber doping concentration can increase the quantum efficiency of the devices, and increasing the doping concentration within a certain range can reduce the dark current.
Article
Chemistry, Multidisciplinary
Huilin Xie, Zhenyu Bi, Junli Yin, Zeshun Li, Lianrui Hu, Chen Zhang, Jianquan Zhang, Jacky W. Y. Lam, Pengfei Zhang, Ryan T. K. Kwok, Kai Li, Ben Zhong Tang
Summary: Fluorescence-guided phototherapy is an emerging noninvasive cancer treatment strategy. Organic molecules, with their easy construction, simple modification, and good biocompatibility, have shown promise as theranostic agents. This study successfully developed a versatile theranostic platform based on an aggregation-induced emission luminogen, TPA-TBT, which exhibited near-infrared emission, high fluorescence quantum yield, robust reactive oxygen species production, and excellent photothermal conversion efficiency. In vivo studies demonstrated its outstanding efficacy in both photodynamic and photothermal therapies against tumors in a mouse model. This work provides a design strategy for developing all-in-one cancer theranostic agents by modulating and utilizing the relaxation energy of excitons.
Review
Biochemistry & Molecular Biology
Kyohei Okubo, Masakazu Umezawa, Kohei Soga
Summary: Near infrared (NIR) light has high transparency in biological tissue, and recent advances in NIR fluorophores have enabled effective use of the NIR optical window for in vivo bioimaging and photodynamic therapy. This review focuses on the development of hybrid nanostructures by utilizing the polarity and vibrational energy of ions and molecules surrounding the luminescence centers, with the aim of reducing heat emission and achieving bright luminescence. The guidelines proposed in the review are based on the multiphonon relaxation theory and emphasize the importance of surrounding luminescence centers with ions with low vibrational energy or molecules with small chemical polarity.
Article
Chemistry, Physical
Enshan Liu, Tao Liang, Elena Ushakova, Bingzhe Wang, Bohan Zhang, Huiqun Zhou, Guichuan Xing, Chunming Wang, Zikang Tang, Songnan Qu, Andrey L. Rogach
Summary: Enhancing the absorption and emission of carbon dots in the deep-red/near-infrared range by suppressing nonradiative charge recombination via deprotonation of the CD surface allows for multilevel data encryption in the NIR region through humidity and temperature control on CD-ink stamped paper.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2021)
Article
Chemistry, Multidisciplinary
Youqiao Ma, Bo Liu, Zhiqin Huang, Jinhua Li, Zhanghua Han, Di Wu, Jun Zhou, Yuan Ma, Qiang Wu, Hiroshi Maeda
Summary: A novel spin-sorting achiral split-ring coupler is proposed and demonstrated to efficiently excite dielectric-loaded plasmonic modes in two independent waveguides unidirectionally based on the interaction between spin and orbital angular momenta. The approach shows great potential in designing compact beam splitters and developing advanced optical functionalities with flexible degree of freedom in on-chip chirality manipulation within chiral optics. The experiment achieved a high directionality contrast of up to 15.1 dB in selectively directing light with different spins into separate plasmonic waveguides.
Review
Medicine, Research & Experimental
Danfeng Wei, Jinxin Qi, Michael R. Hamblin, Xiang Wen, Xian Jiang, Hao Yang
Summary: NIR-PIT is a newly developed cancer treatment modality that targets tumors using a specific photosensitizer conjugate activated by NIR light. This treatment can induce immunogenic cell death and activate the adaptive immune response, as well as enhance drug delivery into tumors.
Article
Chemistry, Multidisciplinary
Sajid Farooq, Shareen Shafique, Zishan Ahsan, Olavo Cardozo, Faiz Wali
Summary: Due to the resonance of interacting plasmonic nanoparticles, there has been a significant effort to develop complex optical nanocircuits. This study presents the design and assembly of single complex photonic nanocircuits by accurately positioning metallic and dielectric nanoparticles. The research shows that increasing the size of metallic nanoparticles modifies the spectral peak resonance and affects the efficiency and performance of the nanocircuits. The circuits can be actively reconfigured by adjusting the direction or polarization of input signals.
Article
Chemistry, Multidisciplinary
Youxin Fu, Kefan Wu, Georgios Alachouzos, Nadja A. Simeth, Thomas Freese, Michal Falkowski, Wiktor Szymanski, Hong Zhang, Ben L. Feringa
Summary: Photoclick reactions combine the selectivity of classical click chemistry with the precision and control of light. A reliable and versatile strategy using near infrared light and upconversion nanoparticles was introduced to activate the reactions. Successful in vivo applications were demonstrated through tissue penetration.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Physical
Kai Zhang, Fei Yang, Yuchen Zhang, Yuying Ma, Jianzhong Fan, Jian Fan, Chuan-Kui Wang, Lili Lin
Summary: This study aims to provide theoretical guidance and experimental verification for highly efficient NIR-TADF molecular design. Through theoretical design and study of 44 acceptors, as well as experimental confirmation of the high fluorescence efficiency NIR-TADF molecule DA-3.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2021)
Article
Chemistry, Multidisciplinary
Henry J. Shulevitz, Tzu-Yung Huang, Jun Xu, Steven J. Neuhaus, Raj N. Patel, Yun Chang Choi, Lee C. Bassett, Cherie R. Kagan
Summary: In this study, a scalable strategy using capillary-driven, template-assisted self-assembly is presented to form ordered arrays of nanodiamonds. Measurements of over 200 nanodiamonds reveal a statistical understanding of their structural, optical, and quantum properties.
Review
Chemistry, Multidisciplinary
Yi-Yu Cai, Yun Chang Choi, Cherie R. Kagan
Summary: Colloidal noble metal nanoparticles can be assembled into different forms of artificial metamolecules and materials with tunable optical properties, allowing manipulation of light transmission and reflection.
ADVANCED MATERIALS
(2023)
Review
Chemistry, Physical
Daniel B. Straus, Cherie R. Kagan
Summary: Two-dimensional organic-inorganic hybrid perovskites (2DHPs) have tunable structural and optical properties, with the organic cation playing a key role. Despite excitons residing in the metal-halide layers, the organic and inorganic frameworks must be considered as a whole to fully understand the photophysics. The cation-induced distortion and disorder in the inorganic lattice are correlated with the resulting optical properties.
ANNUAL REVIEW OF PHYSICAL CHEMISTRY
(2022)
Article
Agriculture, Multidisciplinary
Cherie R. Kagan, David P. Arnold, David J. Cappelleri, Catherine M. Keske, Kevin T. Turner
Summary: The National Science Foundation (NSF) Engineering Research Center (ERC) for the Internet of Things for Precision Agriculture (IoT4Ag) aims to utilize IoT technologies to achieve precision agriculture and educate a diverse workforce to tackle the future challenges of food, energy, and water security.
COMPUTERS AND ELECTRONICS IN AGRICULTURE
(2022)
Editorial Material
Chemistry, Multidisciplinary
Nicholas A. Kotov, Deji Akinwande, C. Jeffrey Brinker, Jillian M. Buriak, Warren C. W. Chan, Xiaodong Chen, Manish Chhowalla, William Chueh, Sharon C. Glotzer, Yury Gogotsi, Mark C. Hersam, Dean Ho, Tony Hu, Ali Javey, Cherie R. Kagan, Kazunori Kataoka, Il-Doo Kim, Shuit-Tong Lee, Young Hee Lee, Luis M. Liz-Marzan, Jill E. Millstone, Paul Mulvaney, Andre E. Nel, Peter Nordlander, Wolfgang J. Parak, Reginald M. Penner, Andrey L. Rogach, Mathieu Salanne, Raymond E. Schaak, Ajay K. Sood, Molly Stevens, Vladimir Tsukruk, Andrew T. S. Wee, Ilja Voets, Tanja Weil, Paul S. Weiss
Article
Chemistry, Physical
Emanuele Marino, Sjoerd W. Van Dongen, Steven J. Neuhaus, Weixingyue Li, Austin W. Keller, Cherie R. Kagan, Thomas E. Kodger, Christopher B. Murray
Summary: Superparticles made from colloidal nanocrystals have great potential in material design. We demonstrate a general method to produce monodisperse nanocrystal superparticles with controllable sizes and morphologies. These superparticles have high optical quality and can select the wavelength of the lasing modes by assembling into clusters, showing an example of collective photonic behavior.
CHEMISTRY OF MATERIALS
(2022)
Article
Optics
Dipa Ghindani, Tuomas Pihlava, Humeyra Caglayan
Summary: A polarization-independent plasmonic structure with nanoantennas on an ENZ substrate is designed to reduce the sensitivity of resonance wavelength to geometrical perturbations.
Article
Chemistry, Multidisciplinary
Steven J. Neuhaus, Emanuele Marino, Christopher B. Murray, Cherie R. . Kagan
Summary: Self-assembled superparticles composed of colloidal quantum dots are used to create microsphere cavities that support optically pumped lasing from whispering gallery modes. The lasing properties of CdSe/CdS quantum dot superparticles are found to be dependent on the excitation fluence and time, with blue-shifts occurring over a 15-minute period. A high-fluence light soaking protocol is established to counter this effect, resulting in reduced blue-shifts and enabling color-tunable lasing from red to green. This study suggests that quantum dot superparticles have the potential to be low-cost, robust, solution-processable, and tunable microlasers.
Correction
Multidisciplinary Sciences
Rakesh Dhama, Ali Panahpour, Tuomas Pihlava, Dipa Ghindani, Humeyra Caglayan
NATURE COMMUNICATIONS
(2022)
Article
Chemistry, Multidisciplinary
Faisal Ahmed, Carlos Rodriguez-Fernandez, Henry A. Fernandez, Yi Zhang, Abde Mayeen Shafi, Md Gius Uddin, Xiaoqi Cui, Hoon Hahn Yoon, Naveed Mehmood, Andreas C. Liapis, Lide Yao, Humeyra Caglayan, Zhipei Sun, Harri Lipsanen
Summary: Developing selective and coherent polymorphic crystals at the nanoscale can be used to design integrated architectures for photonic and optoelectronic applications. In this study, a direct optical writing approach is demonstrated to create polymorphic 2D materials. The polymorphic-engineered MoTe2 shows strong optical contrast and enhanced third harmonic generation intensity, making it suitable for various applications.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Physical
G. Krishnamurthy Grandhi, Rakesh Dhama, Noolu Srinivasa Manikanta Viswanath, Ekaterina S. Lisitsyna, Basheer Al-Anesi, Jayanta Dana, Vipinraj Sugathan, Humeyra Caglayan, Paola Vivo
Summary: The perovskite-inspired Cu2AgBiI6 (CABI) absorber holds potential for low toxicity indoor photovoltaics. However, the self-trapping of carriers in CABI reduces its photovoltaic performance. Through the analysis of the excited-state dynamics of CABI, it is found that photoexcitation in CABI leads to the formation and luminescence of self-trapped states. The understanding of this self-trapping phenomenon is crucial for optimizing the optoelectronic properties of CABI and can be achieved through compositional engineering.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2023)
Article
Chemistry, Multidisciplinary
Rakesh Dhama, Mohsin Habib, Alireza R. Rashed, Humeyra Caglayan
Summary: Conventional plasmonic nanoantennas cannot fully exploit their scattering and absorption features simultaneously due to their overlap in the same wavelength region. However, hyperbolic meta-antennas (HMA) with spectrally separated scattering and absorption bands enable enhanced hot-electron generation and prolonged relaxation dynamics of hot carriers. By extending the plasmon-modulated photoluminescence spectrum towards longer wavelengths and controlling the tunable absorption band, HMA offers improved excitation efficiency and broader utilization of visible/NIR spectrum compared to nanodisk antennas (NDA). Therefore, rational heterostructures designed with plasmonic and adsorbate/dielectric layers in such dynamics can optimize and engineer the utilization of plasmon-induced hot carriers.
Article
Nanoscience & Nanotechnology
Michael Lobet, Nathaniel Kinsey, Inigo Liberal, Humeyra Caglayan, Paloma A. Huidobro, Emanuele Galiffi, Jorge Ricardo Mejia-Salazar, Giovanna Palermo, Zubin Jacob, Nicolo Maccaferri
Summary: This Perspective provides an overview of the state of the art and challenges in emerging research areas where near-zero refractive index and hyperbolic metamaterials are pivotal, including light and thermal emission, nonlinear optics, sensing applications, and time-varying photonics.
Article
Nanoscience & Nanotechnology
Ipek Anil Atalay Appak, Erdem Sahin, Christine Guillemot, Humeyra Caglayan
Summary: Conventional microscopy systems have limited depth of field. To address this challenge, a computational extended depth of field (EDOF) microscope combining learned optics and a deblurring neural network is proposed. A systematic design methodology based on the specific sample visualization requirements is presented, showing that metasurface optics provides superior EDOF performance.
Article
Optics
Ibrahim Issah, Jesse Pietila, Tommi Kujala, Matias Koivurova, Humeyra Caglayan, Marco Ornigotti
Summary: This work proposes epsilon-near-zero (ENZ) nanoparticles composed of metal and dielectric bilayers, and uses the effective-medium approach to study their optical response. By varying the radii of the bilayer nanospheres, a passive tunable ENZ region ranging from visible to near IR is obtained. Additionally, the absorption and scattering cross section of ENZ nanoparticles are presented using open-source transfer-matrix-based software (STRATIFY). The proposed ENZ nanoparticle is expected to be experimentally realized using chemical synthesis techniques.