学科分类
/ 5
81 个结果
  • 简介:Theorganic/inorganicnanocompositespolymerelectrolytesweredesignedandsynthesized.Theorganic/inorganicnanocom-positesmembranematerialsandtheirlithiumsaltcomplexeshavebeenfoundthermallystablebelow200℃.Theconductivityoftheorganic/inorganicnanocompositespolymerelectrolytespreparedatroomtemperaturewasatmagnituderangeof10-6S/cm.

  • 标签: ORGANIC/INORGANIC NANOCOMPOSITES POLYMER ELECTROLYTE POLYMER LITHIUM
  • 简介:Apreliminaryinvestigationonshort-wavelengthablationmechanismsofpoly(methylmethacrylate)(PMMA)andpoly(1,4-phenyleneetherether-sulfone)(PPEES)byextremeultraviolet(EUV)radiationat13.5nmusingatable-toplaserproducedplasmafromagas-pufftargetatLLG(Gttingen)andat46.9nmbya10HzdesktopcapillarydischargelaseroperatedattheInstituteofPhysics(Prague)ispresented.Ablationofpolymermaterialsisinitiatedbyphotoinducedpolymerchainscissions.TheablationoccursduetotheformationofvolatileproductsbytheEUVradiolysisremovedasanablationplumefromtheirradiatedmaterialintothevacuum.Ingeneral,cross-linkingofpolymermoleculescancompetewiththechaindecomposition.Bothprocessesmayinfluencetheefficiencyandqualityofmicro(nano)structuringinpolymermaterials.WavelengthisacriticalparametertobetakenintoaccountwhenanEUVablationprocessoccurs,becausedifferentwavelengthsresultindifferentenergydensitiesinthenear-surfaceregionofthepolymerexposedtonanosecondpulsesofintenseEUVradiation.

  • 标签: EUV ablation ORGANIC polymer photo-erosion MECHANISMS
  • 简介:OrganicmodifierswereeffectivebothtoextendthemigrationtimewindowandtoimprovetheseparationofveryhydrophobiccompoundsinMEKC.Aniterationmethodwasusedtodeterminethemigrationtimeofmicelles.Thequantitativerelationshipbetweenthecapacityfactork’andtheconcentrationoforganicmodifierswasderived,whichwasinvestigatedexperimentally.Thelinearsolvationenergyrelationships(LSER)methodologywasappliedtoMEKC,andgoodlinearrelationshipsbetweenInk’andsolvatochromicparametersof15soluteswereobtainedinthepresenceoforganicmodifierindifferentconcentrations,whichindicatedanewaccessinMEKCtopredictk’fromthestructuralparametersofsolutes.TheeffectofcolumntemperatureTonk’wasalsoinvestigated.

  • 标签: MICELLAR ELECTROKINETIC CHROMATOGRAPHY organic MODIFIERS capacity
  • 简介:AuseofSulfonateesterasalinkerinsynthesisofω-aminoalkanolswasreported.Diolsweretetheredontopolystyrylsulfonylchlorideresin,yieldingsulfonateresins(2).Aftercleavedbydiethylamine,diisopropylamineandpropylaminerespectively,threeω-aminoalkanolswereobtained.

  • 标签: 固相有机物 合成
  • 简介:Thetetravalentmetalsaltsofmonoalkylphosphates[M(R-OPO3)2]areanewkindofstationaryphasesofchromatography-homogeneousbondedphases.Thestudiesonpreparation,structureandgaschromatographicefficiencyofceriumbis(octylphosphate)(COPP)arereportedinthispaper.Byusingchemicalanalysis,infraredspectra,x-raydiffractionanalysis,thestrongevidencethatCOPPhasalayeredstructureoftheα-zirconiumphosphatetypewasdemonstrated,therepetitiveunitisC8H17OPO3CeO3POC8H17andthereisalittlebendingorinterpenetrationofthealkylchainswithinthelayers.ThethermogravimeticanalysisoftheCOPPindicatedthatithasmuchmorethermalstabilitythansilica-basedpackings.ThethermodynamicparametersΔHandmolecularconnectivityindexesx′fortheadsorptionofseveraldozencompoundsontheCOPPhavealsobeendeterminedbygaschromatographicmethod,andthefinelinearitybetweenthemwasshown.

  • 标签: 有机轻元素吸附剂 稀土元素吸附剂 二辛基磷酸铈
  • 简介:Themechanismofcarriertransportinorganiclight-emittingdevicesisnumericallystudied,onthebasisoftrappedcharge-limitedconductionwithanexponentialtrapdistribution.Thespatialdistributionsoftheelectricalpotential,fieldandcarrierdensityintheorganiclayerarecalculatedandanalysed.Mostcarriersaredistributednearthetwoelectrodes,onlyafewofthemaredistributedovertheremainingpartoftheorgaiclayer,Thecarriersareaccumulatedneartheelectrodes,andtheremainingregionisalmostexhaustedofcarriers.Whenthecharacteristicenergyoftrapdistributionisgreaterthan0.3eV.itleadstoareductionofcurrentdensity.Inordertoimprovethedeviceefficiency,organicmaterialswithminortrapsandlowcharacteristicenergyshouldbechosen.Thediffusioncurrentisthedominantcomponentneartheinjectionelectrode.whereasthedriftcurrentdominatestheremainingregionoftheorganiclayer.

  • 标签: 有机光发射器件 载流子迁移机制 数字分析
  • 简介:Therectificationratiooforganicmagneticco-oligomerdiodesisinvestigatedtheoreticallybychangingthemolecularlength.Theresultsrevealtwodistinctlengthdependencesoftherectificationratio:forashortmoleculardiode,thechargecurrentrectificationchangeslittlewiththeincreaseofmolecularlength,whilethespin-currentrectificationisweakenedsharplybythelength;foralongmoleculardiode,boththecharge-currentandspin-currentrectificationratiosincreasequicklywiththelength.Thetwokindsofdependenceswitchataspecificlengthaccompaniedwithaninversionoftherectifyingdirection.Themolecularortibalsandspin-resolvedtransmissionanalysisindicatethatthedominantmechanismofrectificationsuffersachangeatthisspecificlength,thatis,fromasymmetricshiftofmoleculareigenlevelstoasymmetricspatiallocalizationofwavefunctionsuponthereversalofbias.Thisworkdemonstratesafeasiblewaytocontroltherectificationinorganicco-oligomerspindiodesbyadjustingthemolecularlength.更多还原

  • 标签: 旋转整流器 分子长度 依赖性 有机共聚物 分子二极管 自旋电流
  • 简介:Photoniccrystalslabsintegratedintoorganiclight-emittingdiodes(OLEDs)allowfortheextractionofwaveguidemodesandthusanincreaseinOLEDefficiency.WefabricatedlinearBragggratingswitha460-nmperiodonflexiblepolycarbonatesubstratesusingUVnanoimprintlithography.Ahybridorganic–inorganicnanoimprintresistisusedthatservesalsoasahighrefractiveindexlayer.OLEDscomposedofapoly(3,4-ethylenedioxythiophene)polystyrenesulfonate(PEDOT:PSS)polymeranode,anorganicemissionlayer[poly(p-phenylenevinylene)(PPV)-derivative'SuperYellow'],andametalcathode(LiF/Al)aredepositedontotheflexiblegratingsubstrates.TheeffectsofphotoniccrystalslabdeformationinaflexibleOLEDarestudiedintheoryandexperiment.Thesubstratedeformationismodeledusingthefinite-elementmethod.Theinfluenceofthechangeinthegratingperiodandthewaveguidethicknessunderbendingareinvestigated.Thechangeinthegratingperiodisfoundtobethedominanteffect.Atanemissionangleof20°achangeintheresonancewavelengthof1.2%ispredictedforastrainof1.3%perpendiculartothegratinggrooves.ThisvalueisverifiedexperimentallybyanalyzingelectroluminescenceandphotoluminescencepropertiesofthefabricatedgratingOLEDs.

  • 标签:
  • 简介:由使用不同器官的ligands,二3D无机器官的混合混合物公司(C4H4N2)(VO3)21;公司(C12H12N2)(VO3)22被热水的反应综合;由X光检查晶体学描绘了。水晶数据:1。水晶系统斜方晶,空格组Pnna,a=10.188(2),b=11.497(2),c=7.3975(15),V=866.5(3)[3],Z=4,Dcalcd=2.705g/cm[3];2。水晶系统三斜晶系,空间组P1(号码2),a=8.3190(17),b=8.4764(17),c=11.183(2),α=95.48(3)°,β=92.03(3)°,γ=107.24(3)°,V=748.0(3)[3],Z=2,Dcalcd=1.958g/cm[3]。化合物1的框架包含两个{公司(C4H4N2)};无限的metavanadate链。化合物2的水晶结构被构造与无机{CoV2O6}由器官的1,2二度(4-pyridyl)到对面连接的层乙烷ligands。二混合物对约410°C热地稳定;350°C分别地。他们的光乐队差距决心是2.13eV;由UV-VIS-NIR弥漫的反射系列的2.12eV,它揭示了他们半导体的性质;光吸收特征。

  • 标签: 应用化学 水热作用 晶体 合成方法
  • 简介:Anorganicsilaneacrylateresin(PMBK)wassynthesizedbyfree-radicalsolutionpolymerizationusingmethylmethacrylate,butylacrylateand(3-methacryloxypropyl)trimethoxysilaneasmonomers.Aluminum(Al)particleswerethenencapsulatedininorganic-organichybridfilmsthatwerepreparedbyhydrolysisandcondensationofPMBKandtetraethylorthosilicate(TEOS)onthesurfaceofAlpigments.CharacterizationresultsshowedthatPMBKandTEOScouldsimultaneouslyhydrolyzeandcondensewithhydroxylgroupsonthesurfaceoftheAlparticlestoformcompositeAlparticlescoatedwithinorganic-organichybridfilms.ComparedwithrawAlparticles,thecorrosionresistanceandadhesivepropertiesofpaintfilmscontainingthecompositeAlparticleswereimprovedgreatly,whiletheglossinessofthepaintfilmsdecreasedslightly,from48.6°to47.0°.Inalkalinemedia(pH11),thevolumeofevolvedH2ofcompositeAlparticleswasonly3.5mL,whereasthatofrawAlwas83.5mL.TheglossinessofpaintfilmscontainingcompositeAlparticlesdecreasedby1.66%afterimmersioninalkalinemediafor24h,whereasthatofrawAldecreasedby14.82%.Peel-offtestsofthepaintfilmsshowedthatthecompositeparticlesmovedslightlyawayfromthepaintfilms.Incontrast,therawAlparticleswereseriouslydesquamated,suggestingencapsulationofhybridfilmscangreatlyimprovetheadhesivepropertiesofAlparticlesinpaintfilms.

  • 标签: 杂化薄膜 粘合性能 铝颜料 无机 包封 有机膜
  • 简介:我们报导紫外(紫外)分层的器官无机的perovskite材料的轻导致的对光反应变色行为(C4H9NH3)2CuCl4,与紫外光在照耀以后从黄改变了到褐(10mW/cm2)并且部分在黑暗中通过存储恢复了。(C4H9NH3)2展出的CuCl4在286nm集中的二个不同吸收乐队(乐队我)并且384nm(乐队II)它被归因于导致相片的激子在无机的层由器官的层夹了的2D形成了。乐队的蓝移动我当样品为时间的不同长度在紫外光下面被照耀时,从象乐队的紧张的减少一样的287~269nm,我和乐队II能被发现。在弄歪的CuCl64−八面体的N-H⋯Cl氢契约以及长Cu-Cl契约的颤动的紧张的同时的变弱能从Fourier变换被检测红外线(FTIR)系列,它结果不对称的Cl-Cu⋯Cl契约和产生对光反应变色行为的起诉分发的变化。

  • 标签: 光致变色行为 有机无机 钙钛矿 酰氯 傅里叶变换红外光谱 性能