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Giant Magnetoimpedance Effect in surface modified CoFeMoSiB Amorphous Ribbons

Chinese Physics Letters 2003年第12期20卷 2246-2249页

作者： M.A.Cerdeira G.V.Kurlyandskaya A.Fernandez M.Tejedor H.Garcia-Miquel UniversidaddeOviedo FacultaddeCienciasDepartamentodeFisicaAvdaCalvoSotelos/n33007OviedoAsturiasSpain GrupodeSensoresyMagnetismo DepartamentodeIngenieriaElectronicaUniversidadPolitecnicadeValenciaCaminodeVeras/n46021ValenciaSpain

Thin magnetic Fe layers in thickness of 10–240nm were deposited onto a wheel surface of CoFeMoSiB amorphous ribbons to check our concept of a new type of heterogeneous magnetoimpedance materials formed by two different magnetic parts. The presence of an additional iron layer modifies the magnetoimpedance response of the composite material and leads to increase of the magnetoimpedance ratio from 330 to 345% at a frequency of 3.5MHz. Two possible mechanisms are discussed for explanation to the observed behaviour. Modification of the surface properties of the amorphous ribbons may have certain potential for technological applications.

关键词： Giant Magnetoimpedance Effect surface modified CoFeMoSiB Amorphous Ribbons

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surface-modified Graphene Oxide/Lead Sulfide Hybrid Film-Forming Ink for High-Efficiency Bulk Nano-Heterojunction Colloidal Quantum Dot Solar Cells

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Nano-Micro Letters 2020年第9期12卷 56-69页

作者： Yaohong Zhang Guohua Wu Chao Ding Feng Liu Dong Liu Taizo Masuda Kenji Yoshino Shuzi Hayase Ruixiang Wang Qing Shen Faculty of Informatics and Engineering The University of Electro-CommunicationsTokyo 182-8585Japan School of Materials Science and Engineering Shaanxi Normal UniversityXi’an 710119People’s Republic of China X-Frontier Division Toyota Motor CorporationShizuoka 471-8571Japan Department of Electrical and Electronic Engineering University of MiyazakiMiyazaki 889-2192Japan Beijing Engineering Research Centre of Sustainable Energy and Buildings Beijing University of CivilEngineering and ArchitectureBeijing 102616People’s Republic of China

Solution-processed colloidal quantum dot solar cells(CQDSCs) is a promising candidate for new generation solar *** obtain stable and high performance lead sulfide(PbS)-based CQDSCs,high carrier mobility and low non-radiative recombination center density in the PbS CQDs active layer are *** order to effectively improve the carrier mobility in PbS CQDs layer of CQDSCs,butylamine(BTA)-modified graphene oxide(BTA@GO) is first utilized in PbS-PbX2(X=I-,Br-) CQDs ink to deposit the active layer of CQDSCs through one-step spin-coating *** surface treatment of GO dramatically upholds the intrinsic superior hole transfer peculiarity of GO and attenuates the hydrophilicity of GO in order to allow for its good dispersibility in ink *** introduction of B TA@GO in CQDs layer can build up a bulk nano-heterojunction architecture,which provides a smooth charge carrier transport channel in turn improves the carrier mobility and conductivity,extends the carriers lifetime and reduces the trap density of PbS-PbX2 CQDs ***,the BTA@GO/PbS-PbX2 hybrid CQDs film-based relatively large-area(0.35 cm2) CQDSCs shows a champion power conversion efficiency of 11.7% which is increased by 23.1% compared with the control device.

关键词： Quantum dot solar cells PbS colloidal quantum dots Hole extraction Graphene oxide surface modified

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Experimental study on the biocompatibility of keratoprosthesis with improved titanium implant

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International Journal of Ophthalmology(English edition) 2018年第11期11卷 1741-1745页

作者： Li Li Hua Jiang Li-Qiang Wang Yi-Fei Huang Department of Ophthalmology the 88th Hospital of Chinese People's Liberation Army Department of Ophthalmology Jinan Military General Hospital Department of Ophthalmology Chinese People's Liberation Army General Hospital

AIM：To investigate whether hydroxyapatite（HAp）coating can improve keratoprosthesis（KPro）implant biointegration,ultimately to decrease the risk of implantassociated ***：The modified titanium implant was designed and prepared for artificial *** titanium implant was treated with sandblasting and hydroxyapatite coating by acid-base two-step *** was analyzed by scanning electron microscopy（SEM）,KPro implants coated with HAp and KPro implant sandblasted were implanted in *** adhesion to the implant was assessed and compared to an unmodified implant by histopathology（HE）,transmission electron microscopy（TEM）and ***：SEM demonstrated successful deposition of HAp on titanium implant sandblasted（HA/SB-Ti）.The hydroxyapatite coatings caused enhancement of keratocyte proliferation compared with unmodified implant *** coating significantly increased adhesion *** coating of implants reduced the inflammatory response around the KPro implants in ***：HAp-coated surfaces for use in titanium KPro implant greatly enhanced adherence of the titanium KPro implant in the rabbit cornea.

关键词： keratoprosthesis titanium hydroxyapatite surface modified

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Factors Affecting the Reductive Properties of the Core-Shell SiO2-Coated Iron Nanoparticles

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Advances in Chemical Engineering and Science 2016年第4期6卷 316-323页

作者： Congrong Wu Cong Li Dongjin Leng Daizong Cui College of Life Science Northeast Forestry University Harbin China

In this study, novel core-shell SiO2-coated iron nanoparticles (SiO2-nZVI) were synthesized using a one-step Stoeber method. The Malachite green degradation abilities of the nanoparticles were investigated. The effects of ethanol/distilled water volume ratio, presence and absence of PEG, tetraethyl orthosilicate (TEOS) dosage, and hydrolysis time used in the nanoparticles preparation process were investigated. The results indicated that the SiO2-coated iron nanoparticles had the highest reduction activity when the particles synthesized with ethanol/H2O ratio of 2:1, PEG of 0.15 ml, TEOS of 0.5 ml and the reaction time was 4 h. The SiO2-nZVI nanoparticles were characterized using Transmission Electron Microscopy (TEM), Energy Dispersive Spectrometry (EDS) and powder X-Ray Diffraction (XRD). The results showed that the average particles diameter of the SiO2-nZVI was 20 - 30 nm. The thickness of the outside SiO2 film is consistent and approximately 10 nm. The results indicated that the nanoparticles coated completely with a transparent SiO2-film. Such nanoparticles could have wide applications in dye decolorization.

关键词： Nano Zero-Valent Iron Particles SiO2-Coated surface modified Dye Decolorization

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