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Journal of Materials Science & Technology 2023年第16期147卷 224-240页

作者： Younghoon Kim Min-Jae Choi Jongmin Choi Department of Chemistry Kookmin UniversitySeoul02707Republic of Korea Department of Chemical and Biochemical Engineering Dongguk UniversitySeoul04620Republic of Korea Department of Energy Science and Engineering Daegu Gyeongbuk Institute of Science and Technology(DGIST)Daegu42988Republic of Korea

Colloidal quantum dots(CQDs)are promising semiconducting materials,which can be used as a photoactive layer in various optoelectronic applications,because of their size-tunable bandgap energy,solution processability,and excellent optical and optoelectronic *** particular,these features have generated great interest in the development of CQD solar cells and led to a rapid increase in their power conversion *** improvements were enabled by many innovative approaches in terms of CQD’s surface chemistry and device architecture *** this review,a critical overview of the research progress in CQD solar cells is presented with a focus on the strategies adopted for achieving record efficiency in CQD solar *** strategies include the use of organic/inorganic surface ligands,pre-and post-treatment of CQDs,and solid-state/solution-phase ligand ***,we provide an understanding of the research history to inspire the rational design of next-generation CQD optoelectronic devices,such as solar cells,light-emitting diodes,and *** research on the development of infrared CQD solar cells as complementary platforms to other solar cell technologies is also critically discussed to provide another perspective on CQD technologies.

关键词： Quantum dot Lead sulfide Ligand exchange Colloidal ink infrared light Solar cell

Recent research progress for upconversion assisted dye-sensitized solar cells

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Chinese Chemical Letters 2021年第6期32卷 1834-1846页

作者： Xugeng Guo Wenpeng Wu Yuanyuan Li Jinglai Zhang Li Wang Hans Ågren Institute of Upconversion Nanoscale Materials College of Chemistry and Chemical EngineeringHenan UniversityKaifeng 475004China Henan Center for Outstanding Overseas Scientists Henan UniversityKaifeng 475004China Department of Physics and Astronomy Uppsala UniversityBox 516SE-75120 UppsalaSweden

Upconversion(UC)technology makes it possible to harvest infrared(IR)light from the sun and has increasingly been employed in recent years to improve the efficiency of solar *** progress in the area concerns both research on fundamental principles and processes of UC and technologies of device *** increase of important solar cell parameters,like short-circuit photocurrent density and open-circuit photovoltage as well as the total photon-to-current efficiency,has been *** here review the research published during the last few years in the area,in particular we consider the two most cherished techniques,namely the incorporation of upconverting nanophosphors directly into the photoanodes of the solar cells and the introduction of plasmonic metal nanoparticles co-existing with the UC *** ways to achieve strong field enhancement,and the use of the non-linear nature of UC,is to apply microlenses,with or without assisting plasmonic *** enhanced UC action has been demonstrated by broad band and effective harvesting by organic IR antennas,with subsequent mediation by an intermediate nanoshell of the energy into the upconverting ***,nanohybrid and layer-by-layer technologies involving upconverting particles as well as the use of upconverting nanoparticles in hole-transport and electrolyte layers,tested in recent works,are also *** most of these technologies employ upconverting rare earth metals for sequential photon absorption,the main alternative technique,namely triplet-triplet annihilation UC using organic materials,is also *** is our belief that all these approaches will be further much researched in the near future,with potentially great impact on solar cell technology.

关键词： Upconversion nanoparticles Dye-sensitized solar cells infrared light Triplet-triplet annihilation Photovoltaic systems

Silver nanowires for anti-counterfeiting

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Journal of Materiomics 2020年第1期6卷 152-157页

作者： Yan Wang Ningning Bai Junlong Yang Zhiguang Liu Gang Li Minkun Cai Lingyu Zhao Yuan Zhang Jianming Zhang Chunhua Li Yunlong Zhou Chuan Fei Guo School of Materials Science and Engineering Harbin Institute of TechnologyHarbin150001China Department of Materials Science&Engineering Centers for Mechanical Engineering Research and Education at MIT and SUSTechSouthern University of Science and TechnologyShenzhen518055China c Engineering Research Center of Clinical Functional Materials and Diagnosis&Treatment Devices of Zhejiang Province Wenzhou Institute of Biomaterials and EngineeringUniversity of Chinese Academy of SciencesWenzhou325000China

Silver nanowire(AgNW)films have been widely used as flexible transparent electrodes due to the high electrical conductance and high transmittance in the visible *** infrared(IR)properties of AgNW films,however,are seldom ***,we show that ultrathin AgNWs present high transmittance in the visible range(~95%)and high reflectance(60-70%)in the IR range of 8e14 *** a significant difference makes AgNW films invisible to naked eyes but visible under an IR camera,being an ideal selection for anti-counterfeit technologies,while no excitation is *** have demonstrated that AgNW films can be spray-coated on either flat or microstructured surfaces with high conformability and high scratch-resistance,and thus these anti-counterfeiting materials can be applied to a variety of *** AgNW-based anti-counterfeiting may be helpful for combating counterfeiting crimes in the fields of medicines,artwork,banknotes,brand luxuries,industrial parts,and so on.

关键词： Silver nanowires Anti-counterfeiting infrared light Excitation-free Conformability

Solvent-Free Synthesis of Carboxylic Acids and Amide Analogs of CAPE(Caffeic Acid Phenethyl Ester)under infrared Irradiation Conditions

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Green and Sustainable Chemistry 2015年第2期5卷 81-91页

作者： Pablo A.Martínez-Soriano Jose R.Macías-Perez Ana Maria Velazquez Brigida del Carmen Camacho-Enriquez Gustavo Pretelin-Castillo Monica B.Ruiz-Sanchez Victor H.Abrego-Reyes Saul Villa-Trevino Enrique Angeles Laboratorio de Quimica Medicinal y Teorica Departamento de Ciencias QuimicasFES CuautitlanUniversidad Nacional Autonoma de MexicoCuautitlan IzcalliMexico Departamento de Biologia celular Centro de Investigacion y Estudios AvanzadosInstituto Politecnico NacionalMexicoD.F.Mexico Qsar Analytics S.A.de C.V.Ciudad Satelite Naucalpan de JuarezMexico

A convenient and easy method is described for the formation of carboxamides from carboxylic acids and primary amines in solventless conditions using infrared (IR) light. Thus, under IR light, cinnamic acid derivatives... 详细信息

关键词： Amides Carboxylic Acids Amines infrared light Solventless CAPE CAPA Cinnamic Acid Analogs

The Application of the Edge Sharpening Operator to the Breast Near-infrared Imaging

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Wuhan University Journal of Natural Sciences 2002年第4期7卷 421-425页

作者： Xiang Yan 1 , Li Kai yang 1  , Yang Xuan dong 1 , Wang Xiao fang 2 ,Zhang Xian lin 2 ,Zhu Yi jun 3 1. School of Physics and Technology, Wuhan University, Wuhan 430072, Hubei, China 2. Tumor Research Institute of Hubei Province, Wuhan 430079,Hubei, China 3. E Sea Digital Engineering Limited Company, Wuhan 430072, Hubei, China School of Physics and Technology Wuhan University Wuhan 430072 Hubei China Tumor Research Institute of Hubei Province Wuhan 430079Hubei China E-Sea Digital Engineering Limited Company Wuhan 430072 Hubei China

The principles of Gradient operator, Laplacian operator, LOG operator and Sobel operator are discussed. Certain features of breast can be extracted in different degrees and aspects from original images by applying four edge sharpening operators to the breast near-infrared imaging. A great number of cases prove that compared with the other three operators, the improved Sobel operator can effectively extract the structural features of the breast from an original image. It can be concluded that the improved Sobel operator can assist in diagnosing breast diseases.

关键词： edge sharpening operator near infrared light breast diagnoses

Fluorescence guided intraluminal endoscopy in the gastrointestinal tract: A systematic review

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World Journal of Gastrointestinal Endoscopy 2020年第10期12卷 388-400页

作者： Olivia Engholt Mortensen Nikolaj Nerup Morten Thorsteinsson Morten Bo Søndergaard Svendsen Hironari Shiwaku Michael Patrick Achiam Department of Surgical Gastroenterology Copenhagen University HospitalCopenhagen 2100Denmark Copenhagen Academy for Medical Education and Simulation Copenhagen University HospitalCopenhagen 2100Denmark Department of Surgical Gastroenterology Fukuoka University Faculty of MedicineFukuoka 814-0133Japan

BACKGROUND Conventional endoscopy is based on full spectrum white ***,different studies have investigated the use of fluorescence based endoscopy systems where the white light has been supplemented by infrared light and the use of relevant *** endoscopy utilizes the fluorescence emitted from a fluorophore,visualizing what is not visible to the naked *** To explore the feasibility of fluorescence endoscopy and evaluate its use in diagnosing and evaluating gastrointestinal *** We followed the PRISMA guidelines for this systematic *** research covered five databases;PubMed,Scopus,Web of Science,Embase,and the Cochrane Collection,including only studies in English and Scandinavian *** screened title and abstract for inclusion,subsequently full-text for inclusion according to eligibility criteria listed in the *** risk of bias was assessed for all studies according to the Newcastle-Ottawa *** authors extracted the data and reported the results in both text and *** We included seven studies in the systematic review after screening a total of 2769 *** most prominent fluorophore was indocyanine green(n=6),and whereas one study(n=1)used Bevacizumab *** studies investigated fluorescence endoscopy in detecting varices,adenomas in patients with familial adenomatous polyposis and neoplasms in the gastrointestinal *** studies evaluated the usefulness of fluorescence endoscopy in assessing tumor *** of the four studies reported an exceptional diagnostic accuracy(93%,89%and 88%)in assessing tumor invasion,thus representing better visualization and more correct diagnosis by fluorescence endoscopy compared with the conventional *** relationship between the endoscopic findings,tumor invasion,and tumor vascularity was evaluated in two studies showing a significant correlation(dP<0.05 and bP<0.01).CONCLUSION The use of fluorescence endoscopy is a prom

关键词： Fluorescence endoscopy Gastroscopy Gastrointestinal tract Gastrointestinal diseases infrared light Fluorophore Indocyanine green

Imaging Technology for Detecting Objects Hidden in Highly Scattering Media with Focusing Fluorescence Scanning System

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Imaging Technology for Detecting Objects Hidden in Highly Sc...