检索结果-南通市图书馆

InfoMat 2023年第4期5卷 14-24页

作者： Youngkyoung Ha judith l.macmanus-driscoll Shinbuhm lee Department of Physics and Chemistry DGISTDaeguRepublic of Korea Department of Emerging Materials Science DGISTDaeguRepublic of Korea Department of Materials Science and Metallurgy University of CambridgeCambridgeUK

Designing super-broadband transparent conductors is challenging because of the exclusive nature of conductivity and infrared ***,using a one-step process,we created vertically aligned nanocomposite conducting films with high transparency across a super-broad wavelength *** aligned transparent Ba_(3)V_(2)O_(8)nanocolumns with lateral-100-nm widths enable high transmittance(>50%,even at a 4-μm wavelength)for all incident light and outperform that of Sn-doped In_(2)O_(3),while the conducting SrVO_(3)matrix retains low resistivity(lectron microscopy,scattering scanning nearfield infrared microscopy,and X-ray diffraction revealed that spontaneous phase separation of Ba_(3)V_(2)O_(8)nanocolumns in a SrVO_(3)matrix film occurs via self-assembled epitaxial *** vertically aligned nanocomposite films provide a fertile platform for next-generation optoelectronics.

关键词： epitaxial nucleation spontaneous phase separation SrVO_(3)-Ba_(3)V_(2)O_(8) super-broadband transparent conductors vertically aligned nanocomposite films

Interplay of polarization,strength,and loss in dielectric films for capacitive energy storage:Current status and future directions

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Materiomics 2023年第3期9卷 516-519页

作者： Hao Pan Yizhe Jiang judith l.macmanus-driscoll Department of Materials Science and Engineering University of CaliforniaBerkeleyCA94720USA Department of Materials Science and Metallurgy University of Cambridge27 Charles Babbage RoadCambridgeCB30FSUnited Kingdom

Energy-storage dielectric capacitors have emerged as one of the key technologies for high-power systems such as green energy generation,hybrid/electrical vehicles,pulsed power devices,etc.[1]The high-power feature of dielectric capacitors originates from the fast electrostatic *** is in contrast with the slower electrochemical processes in batteries and supercapacitors.

关键词： Dielectric film Energy storage Polarization Strength loss

large ferro-pyro-phototronic effect in 0.5Ba(Zr_(0.2)Ti_(0.8))O_(3)-0.5(Ba_(0.7)Ca_(0.3))TiO_(3)thin films integrated on silicon for photodetection

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Carbon Energy 2023年第6期5卷 1-10页

作者： JoséP.B.Silva Katarzyna Gwozdz luís S.Marques Mario Pereira Maria J.M.Gomes judith l.macmanus‐driscoll Robert l.Z.Hoye Centre of Physics of Universities of Minho and Porto(CF‐UM‐UP) University of MinhoBragaPortugal laboratory of Physics for Materials and Emergent Technologies LapMETUniversity of MinhoBragaPortugal Department of Quantum Technologies Faculty of Fundamental Problems of TechnologyWroclaw University of Science and TechnologyWroclawPoland Department of Materials Science and Metallurgy CambridgeUK Inorganic Chemistry laboratory Department of ChemistryUniversity of OxfordOxfordUK Department of Materials Imperial College LondonLondonUK

Coupling together the ferroelectric,pyroelectric,and photovoltaic characteristics within a single material is a novel way to improve the performance of *** this work,we take advantage of the triple multifunctionality shown by 0.5Ba(Zr_(0.2)Ti_(0.8))O_(3)-0.5(Ba_(0.7)Ca_(0.3))TiO_(3)(BCZT),as demonstrated in an Al/Si/SiOx/BCZT/ITO thin-film *** Si/SiOx acts as an n-type layer to form a metal-ferroelectric-insulator-semiconductor heterostructure with the BCZT,and with Al and ITO as *** photo-response of the device,with excitation from a violet laser(405 nm wavelength),is carefully investigated,and it is shown that the photodetector performance is invariant with the chopper frequency owing to the pyro-phototronic effect,which corresponds to the coupling together of the pyroelectric and photovoltaic ***,the photodetector performance was significantly better than that of the devices operating based only on the pyro-phototronic effect by a factor of 4,due to the presence of ferroelectricity in the ***,after a poling voltage of−15 V,for a laser power density of 230mW/cm^(2)and at a chopper frequency of 400Hz,optimized responsivity,detectivity,and sensitivity values of 13.1mA/W,1.7×10^(10)Jones,and 26.9,respectively,are ***,ultrafast rise and fall times of 2.4 and 1.5μs,respectively,are obtained,which are 35,000 and 36,000 times faster rise and fall responses,respectively,than previous reports of devices with the ferro-pyro-phototronic *** is understood based on the much faster ferroelectric switching in ferroelectric thin films owing to the predominant 180°domains in a single direction out of plane.

关键词： ferroelectric ferro-pyro-phototronic effect photodetector polarization-controlled response

High Yield Transfer of Clean large-Area Epitaxial Oxide Thin Films

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Nano-Micro letters 2021年第2期13卷 363-376页

作者： Bowen Zhang Chao Yun judith l.macmanus-driscoll Department of Materials Science and Metallurgy University of Cambridge27 Charles Babbage RoadCambridge CB30FSUK

In this work,we have developed a new method for manipulating and transferring up to 5 mm×10 mm epitaxial oxide thin *** method involves fixing a PET frame onto a PMMA attachment film,enabling transfer of epitaxial films lifted-off by wet chemical etching of a Sr3Al2O6 sacrificial *** crystallinity,surface morphology,continuity,and purity of the films are all preserved in the transfer *** demonstrate the applicability of our method for three different film compositions and structures of thickness~100 ***,we show that by using epitaxial nanocomposite films,lift-off yield is improved by~50% compared to plain epitaxial films and we ascribe this effect to the higher fracture toughness of the *** work shows important steps towards large-scale perovskite thin-film-based electronic device applications.

关键词： Free-standing oxide thin films High yield transfer Wet etching Crack prevention

Sodium Diffuses from Glass Substrates through P1 lines and Passivates Defects in Perovskite Solar Modules

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Energy & Environmental Materials 2023年第6期6卷 393-401页

作者： Felix Utama Kosasih Francesco Di Giacomo Jordi Ferrer Orri Kexue li Elizabeth M.Tennyson Weiwei li Fabio Matteocci Gunnar Kusch Narges Yaghoobi Nia Rachel A.Oliver judith l.macmanus-driscoll Katie l.Moore Samuel D.Stranks Aldo Di Carlo Giorgio Divitini Caterina Ducati Department of Materials Science and Metallurgy University of Cambridge27 Charles Babbage RoadCambridge CB30FSUK Centre for Hybrid and Organic Solar Energy(CHOSE) Department of Electronic EngineeringUniversity of Rome Tor VergataRome 00133Italy Cavendish laboratory University of CambridgeJJ Thomson AvenueCambridge CB30HEUK Department of Materials and Photon Science Institute University of ManchesterOxford RoadManchester M139PLUK Department of Chemical Engineering and Biotechnology University of CambridgePhilippa Fawcett DriveCambridge CB30ASUK laboratory for Advanced Solar Energy(lASE) National University of Science and Technology MISiSLeninskiy Prospekt 4Moscow 119049Russia Energy Research Institute@NTU Nanyang Technological University50 Nanyang DriveSingapore 637553Singapore MIIT Key laboratory of Aerospace Information Materials and Physics College of PhysicsNanjing University of Aeronautics and AstronauticsNanjing 211106China Istituto di Struttura della Materia-CNR(ISM-CNR) Via del Fosso del Cavaliere 100Rome 00133Italy Electron Spectroscopy and Nanoscopy Istituto Italiano di TecnologiaVia Morego 30Genova 16163Italy

Most thin-film photovoltaic modules are constructed on soda-lime glass(SlG)substrates containing alkali oxides,such as Na_(2)*** may diffuse from SlG into a module's active layers through P1 lines,an area between a module's constituent cells where the substrate-side charge transport layer(CTl)is in direct contact with *** diffusion from SlG is known to cause several important effects inⅡ-Ⅵand chalcogenide solar modules,but it has not been studied in perovskite solar modules(PSMs).In this work,we use complementary microscopy and spectroscopy techniques to show that Na diffusion occurs in the fabrication process of *** diffuses vertically inside P1 lines and then laterally from P1 lines into the active area for up to 360 *** propose that this process is driven by the high temperatures the devices are exposed to during CTl and perovskite *** diffused Na preferentially binds with Br,forming Br-poor,l-rich perovskite and a species rich in Na and Br(Na-Br)close to P1 ***-Br passivates defect sites,reducing non-radiative recombination in the perovskite and boosting its luminescence by up to 5×.Na-Br is observed to be stable after 12 weeks of device storage,suggesting long-lasting effects of Na *** results not only point to a potential avenue to increase PSM performance but also highlight the possibility of unabated Na diffusion throughout a module's lifetime,especially if accelerated by the electric field and elevated temperatures achievable during device operation.

关键词： defect passivation monolithic interconnection perovskite solar modules soda-lime glass sodium diffusion solar cells thin-film photovoltaics

Nickel oxide thin films grown by chemical deposition techniques: Potential and challenges in next-generation rigid and flexible device applications

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

InfoMat 2021年第5期3卷 536-576页

作者： Mari Napari Tahmida N.Huq Robert l.Z.Hoye judith l.macmanus-driscoll Department of Materials Science and Metallurgy University of CambridgeCambridgeUK Centre for Electronics Frontiers Zepler Institute for Photonics and NanoelectronicsUniversity of SouthamptonSouthamptonUK Department of Materials Imperial College LondonLondonUK

Nickel oxide(NiOx),a p-type oxide semiconductor,has gained significant attention due to its versatile and tunable *** has become one of the critical materials in wide range of electronics applications,including resistive switching random access memory devices and highly sensitive and selective sensor *** addition,the wide band gap and high work function,coupled with the low electron affinity,have made NiOx widely used in emerging optoelectronics and p-n *** properties of NiOx thin films depend strongly on the deposition method and *** implementation of NiOx in next-generation devices will require controllable growth and processing methods that can tailor the morphological and electronic properties of the material,but which are also compatible with flexible *** this review,we link together the fundamental properties of NiOx with the chemical processing methods that have been developed to grow the material as thin films,and with its application in electronic *** focus solely on thin films,rather than NiOx incorporated with one-dimensional or two-dimensional *** review starts by discussing how the p-type nature of NiOx arises and how its stoichiometry affects its electronic and magnetic *** discuss the chemical deposition techniques for growing NiOx thin films,including chemical vapor deposition,atomic layer deposition,and a selection of solution processing approaches,and present examples of recent progress made in the implementation of NiOx thin films in devices,both on rigid and flexible ***,we discuss the remaining challenges and limitations in the deposition of device-quality NiOx thin films with chemical growth methods.

关键词： atomic layer deposition chemical vapor deposition electronics nickel oxide solution processing thin films

Antiferromagnetism and p-type conductivity of nonstoichiometric nickel oxide thin films

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

InfoMat 2020年第4期2卷 769-774页

作者： Mari Napari Tahmida N.Huq Tuhin Maity Daisy Gomersall Kham M.Niang Armin Barthel Juliet E.Thompson Sami Kinnunen Kai Arstila Timo Sajavaara Robert l.ZHoye Andrew J.Flewitt judith l.macmanus-driscoll Department of Materials Science and Metallurgy University of CambridgeCambridgeUK Electrical Engineering Division Department of EngineeringUniversity of CambridgeCambridgeUK Department of Physics University of JyvaskylaJyvaskylaFinland Zepler Institute for Photonics and Nanoelectronics University of SouthamptonSouthamptonUK

Nickel oxide(NiO)is one of the most studied transition metal oxides due to its versatile chemical and electronic properties,enabling it to be used in a wide variety of *** its stoichiometric form,NiO is an antiferromagnetic insulator,with resistivity up to 10^13Ωcm.1 When Ni vacancies are introduced,the nonstoichiometric nickel oxide becomes a semiconductor.

关键词： atomic layer deposition chemical vapor deposition nickel oxide solution deposition thin films

Dietary Diversity and Food Security Status among Cameroonian Adults living in Semi-Urban Areas: A Cross-Sectional Study

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Food and Nutrition Sciences 2024年第7期15卷 548-564页

作者： Tonou Boris Ronald Tchuente Pauline Vervaine Hagbe Eliane Flore Eyenga Kemadjou Ruth Edwige Dibacto Ngassa Dany Joël Ngoumen Fotso Janvier Aime Youovop Nguemto Roussel Guy Takuissu judith laure Ngondi Julius Enyong Oben Department of Biochemistry Faculty of Science University of Yaound 1 Yaound Cameroon Centre for Food Food Security and Nutrition Research Institute of Medical Research and Medicinal Plant Studies Yaound Cameroon Center of Nutrition and Functional Foods Yaound Cameroon

Introduction: Food security is one of the greatest challenges that most African countries face. It is a concept that considers not only food quantity but also food quality. The objective of this study was to describe dietary diversity and food security status at the individual level in Cameroonian populations. Methods: A total of 1180 men and women aged 20 and over and living in the West, North West, and littoral regions of Cameroon were recruited. Data on dietary habits were collected through the frequency of consumption of various food groups. Dietary diversity was assessed using a 24-hour dietary recall. Food security status was determined by combining two indicators (food consumption score and individual food diversity score). Results: The mean dietary diversity score of the population was 3.53 ± 1.44, p Conclusion: The diet diversity of adults living in the West, North West, and littoral regions of Cameroon is medium. Although half of the study population was food secure, there is a need to implement food security policies further to reduce food insecurity among the Cameroonian population.

关键词： Dietary Diversity Individual Food Security littoral West North West Cameroon

large Conventional Osteosarcoma of the Proximal Humerus in a 13-Year-Old Child: Case Report

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Open Journal of Pediatrics 2024年第2期14卷 297-304页

作者： lucienne Irène Patricia Ondima Rhodia Hélène Bosseba Missengue Cardinale Princilia Okiemy Niendet Nuptia Erica Akobande Jean Claude Mieret Caryne Mboutol-Mandavo Redy Atipo Galloye judith Nsondé Malanda Jennifer Mave Sirimé Ngandzo Fabien Mouamba Faculty of Health Sciences Marien Ngouabi University Brazzaville Congo Paediatric Surgery Department Brazzaville University Hospital Centre Brazzaville Congo Department of General Surgery Brazzaville University Hospital Centre Brazzaville Congo Carcinology Department Brazzaville University Hospital Centre Brazzaville Congo Anatomo-Pathology laboratory Brazzaville University Hospital Centre Brazzaville Congo

Introduction: Osteosarcoma is the most common primary malignant bone tumor in children. It is highly aggressive and has a poor prognosis. A late presentation modifies and makes difficult the management affecting the survival of children. We report the case of a large conventional osteosarcoma in a 13-year-old girl. Case Presentation: Adolescent girl admitted for painful swelling of the left shoulder with absolute functional impotence of the thoracic limb and severe anemia. The painful swelling was thought to have been caused by a minor trauma that had occurred six months previously. The patient’s general condition was poor, and she presented with a large, shiny, painful mass over the shoulder and upper 2/3 of the left arm, measuring 28 cm long by 28 cm wide and 57 cm in circumference, and a large fistulous axillary adenopathy. CT scan showed a tumour lesion of the left humerus with liver and lung metastases, raising suspicion of osteogenic osteosarcoma. The tumor was classified according to TNM staging: T2N1M1(a + b). Management was modified when uncontrolled bleeding developed. It consisted of an extended amputation of the left thoracic limb. Pathological analysis showed a high-grade conventional osteosarcoma. Quality improvement was obtained for thirty days, followed by the onset of dyspnea. The evolution was towards death at forty days post-operatively. Conclusion: Osteosarcoma is a highly aggressive cancer. Delayed treatment leads to a fatal outcome. Early diagnosis is one of the challenges to be met in order to improve survival.

关键词： Osteosarcoma Child Conventional Case Report

Dysfunction of the adhesion G protein-coupled receptor latrophilin 1(ADGRl1/lPHN1)increases the risk of obesity

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Signal Transduction and Targeted Therapy 2024年第5期9卷 2298-2311页

作者： Heba ZabriTorsten Schöneberg AndréNguyen Dietzsch Hadi Al-Hasani Joachim Altschmied Katharina Bottermann Jana Brendler judith Haendeler Susanne Horn Isabell Kaczmarek Antje Körner Kerstin Krause Kathrin landgraf Diana le Duc laura lehmann Stefan lehr Stephanie Pick Albert Ricken Rene Schnorr Angela Schulz Martina Strnadová Akhil Velluva Heba Zabri Torsten Schöneberg Doreen Thor Simone Prömel Rudolf Schönheimer Institute of Biochemistry Medical FacultyLeipzig UniversityLeipzigGermany Institute for Clinical Biochemistry and Pathobiochemistry Medical FacultyGerman Diabetes CenterLeibniz Center for Diabetes Research at Heinrich Heine University DüsseldorfDüsseldorfGermany German Center for Diabetes Research(DZD e.V.) Munich-NeuherbergGermany Cardiovascular Degeneration Clinical Chemistry and Laboratory DiagnosticsMedical FacultyUniversity Hospital and Heinrich Heine University DüsseldorfDüsseldorfGermany Cardiovascular Research Institute(CARID) Medical FacultyUniversity Hospital and Heinrich Heine University DüsseldorfDüsseldorfGermany Institute of Pharmacology Medical FacultyUniversity Hospital and Heinrich Heine University DüsseldorfDüsseldorfGermany Institute of Anatomy Medical FacultyLeipzig UniversityLeipzigGermany Center for Pediatric Research Hospital for Children and AdolescentsMedical FacultyLeipzig UniversityLeipzigGermany Helmholtz Institute for Metabolic Obesity and Vascular Research(HI-MAG)of the Helmholtz Zentrum München at the University of Leipzig and University Hospital LeipzigLeipzigGermany Department of Endocrinology NephrologyRheumatologyLeipzig University Medical CenterLeipzigGermany Institute of Human Genetics Leipzig University Medical CenterLeipzigGermany Institute of Cell Biology Department of BiologyHeinrich Heine University DüsseldorfDüsseldorfGermany School of Medicine University of Global Health EquityKigaliRwanda

Obesity is one of the diseases with severe health consequences and rapidly increasing worldwide *** the complex network of food intake and energy balance regulation is an essential prerequisite for pharmacological intervention with obesity.G protein-coupled receptors(GPCRs)are among the main modulators of metabolism and energy ***,for instance,regulate appetite and satiety in certain hypothalamic neurons,as well as glucose and lipid metabolism and hormone secretion from *** in some GPCRs,such as the melanocortin receptor type 4(MC4R),have been associated with early-onset ***,we identified the adhesion GPCR latrophilin 1(ADGRl1/lPHN1)as a member of the regulating network governing food intake and the maintenance of energy *** of the highly conserved receptor in mice results in increased food consumption and severe obesity,accompanied by dysregulation of glucose ***,we identified a partially inactivating mutation in human ADGRl1/lPHN1 in a patient suffering from ***,we propose that lPHN1 dysfunction is a risk factor for obesity development.

关键词： obesity metabolism intake