检索结果-南通市图书馆

Laser Processing in Solar Cell Production(Invited Paper)

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

中国激光 2009年第12期36卷 3116-3124页

作者： Shizhou Xiao andreas ostendorf Laser Applications Technology Department Mechanical Engineering Ruhr-University Bochum Bochum 44780 Germany

Laser technology as one of the most important manufacturing tools in industry has entered the solar cell production processes in almost all *** processing is extensively applied in the complete production line of major parts of high efficiency solar cells based on silicon wafer today,including laser edge isolation,grooving,drilling,soldering,*** thin-film solar cells which are on the threshold between development and mass production exhibit further potential in the reduction of production costs and also provide many opportunities for laser processing like laser scribing,laser edge deletion,etc.

关键词：太阳能电池激光技术发展现状工业技术

Detection of per-and polyfluoroalkyl water contaminants with a multiplexed 4D microcavities sensor

在线全文

学校读者我要写书评

暂无评论

Photonics Research 2023年第11期11卷 I0025-I0033页

作者： ANTON V.SAETCHNIKOV ELINA A.TCHERNIAVSKAIA VLADIMIR A.SAETCHNIKOV andreas ostendorf Chair of Applied Laser Technologies Ruhr University Bochum44801 BochumGermany Physics Department Belarusian State University220030 MinskBelarus Radio Physics Department Belarusian State University220064 MinskBelarus

The per-and polyfluoroalkyl substances(PFAS)are a group of organofluorine chemicals treated as the emerging pollutants that are currently of particularly acute *** compounds have been employed intensively as surfactants over multiple decades and are already to be found in surface and ground waters at amounts sufficient to have an effect on human health and *** of the carbon–fluorine bonds,the PFAS have an extreme environmental persistence and their negative impact accumulates with further production and penetration into the *** Germany alone,more than thousands of sites have been identified as contaminated with PFAS;thus,timely detection of PFAS residue is becoming a high *** this paper,we report on the high performance optical detection method based on whispering gallery mode(WGM)microcavities applied for the first time to detect PFAS contaminants in aqueous solutions.A self-sensing boosted 4D microcavity fabricated with two-photon polymerization is employed as an individual sensing *** an example of the multiplexed imaging sensor with multiple hundreds of simultaneously interrogated microcavities we demonstrate the possibility to detect the PFAS chemicals representatives at a level down to 1 ppb(parts per billion).

关键词： fluorine hundreds becoming

Deep‐learning powered whispering gallery mode sensor based on multiplexed imaging at fixed frequency

在线全文

学校读者我要写书评

暂无评论

Opto-Electronic Advances 2020年第11期3卷 1-9页

作者： Anton V.Saetchnikov Elina A.Tcherniavskaia Vladimir A.Saetchnikov andreas ostendorf Applied Laser Technologies Ruhr University BochumBochum 44801Germany Radio Physics Department Belarusian State UniversityMinsk 220064Belarus Physics Department Belarusian State UniversityMinsk 220030Belarus

During the last decades the whispering gallery mode based sensors have become a prominent solution for label-free sensing of various physical and chemical *** the same time,the widespread utilization of the approach is hindered by the restricted applicability of the known configurations for ambient variations quantification outside the laboratory conditions and their low affordability,where necessity on the spectrally-resolved data collection is among the main limiting *** this paper we demonstrate the first realization of an affordable whispering gallery mode sensor powered by deep learning and multi-resonator imaging at a fixed *** has been shown that the approach enables refractive index unit(RIU)prediction with an absolute error at 3×10^(-6) level for dynamic range of the RIU variations from 0 to 2×10^(-3) with temporal resolution of several milliseconds and instrument-driven detection limit of 3×10−*** sensing accuracy together with instrumental affordability and production simplicity places the reported detector among the most cost-effective realizations of the whispering gallery mode *** proposed solution is expected to have a great impact on the shift of the whole sensing paradigm away from the model-based and to the flexible self-learning solutions.

关键词： optical microresonator sensing machine learning whispering gallery mode multiplexing

Laser metal deposition of refractory high-entropy alloys for high-throughput synthesis and structure-property characterization

在线全文

学校读者我要写书评

暂无评论

International Journal of Extreme Manufacturing 2021年第1期3卷 98-120页

作者： Henrik Dobbelstein Easo P George Evgeny L Gurevich Aleksander Kostka andreas ostendorf Guillaume Laplanche Applied Laser Technologies Ruhr-University BochumUniversitätsstr.15044801 BochumGermany Material Science and Technology Division Oak Ridge National LaboratoryOak RidgeTN 37831-6115United States of America Materials Science and Engineering Department University of TennesseeKnoxvilleTN 37996-2100United States of America Center for Interface-Dominated High Performance Materials Ruhr-University BochumUniversitätsstr.15044801 BochumGermany Institute for Materials Ruhr-University BochumUniversitätsstr.15044801 BochumGermany

Progress in materials development is often paced by the time required to produce and evaluate a large number of alloys with different chemical *** applies especially to refractory high-entropy alloys(RHEAs),which are difficult to synthesize and process by conventional *** evaluate a possible way to accelerate the process,high-throughput laser metal deposition was used in this work to prepare a quinary RHEA,TiZrNbHfTa,as well as its quaternary and ternary subsystems by in-situ alloying of elemental *** graded variants of the quinary RHEA were also *** results show that the influence of various parameters such as powder shape and purity,alloy composition,and especially the solidification range,on the processability,microstructure,porosity,and mechanical properties can be investigated *** strength of these alloys was mainly affected by the oxygen and nitrogen contents of the starting powders,while substitutional solid solution strengthening played a minor role.

关键词： high-entropy alloy HfNbTaTiZr refractory powder blend laser metal deposition additive manufacturing high-throughput synthesis