简介：DiodesIncorporated推出一系列采用薄型DFN2020-6封装的高效率N通道及P通道MOSFET。DFN2020H4封装的DMP2039UFDE4,离板高度只有0.4毫米,占板面积只有四平方毫米,

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简介：Diodes公司推出AP3983原边电源开关系列，助力电源设计人员轻易达到高转换效率，以满足能源之星6级（EnergyStarLevel6）和欧盟外部电源供应器行为准则第二阶段（EUCoCTier2）的要求。AP3983系列器件的运作频率高达80kHz，使用分段脉冲频率调制（piecewisePulseFrequencyModulation，P—PFM）技术的不连接传导模式，调节原边电压和电流优于±5％，并且提供一种无噪音的解决方案，用于充电器、ADSL适配器和家用电器电源。

简介：Realizationofefficientyellow-light-emittingdiodes(LEDs)hasalwaysbeenachallengeinsolid-statelighting.Greatefforthasbeenmade,butonlyslightadvancementshaveoccurredinthepastfewdecades.AftercomprehensiveworkonInGaN-basedyellowLEDsonSisubstrate,wesuccessfullymadeabreakthroughandpushedthewall-plugefficiencyof565-nm-yellowLEDsto24.3%at20A∕cm~2and33.7%at3A∕cm~2.ThesuccessofyellowLEDscanbecreditedtotheimprovedmaterialqualityandreducedcompressivestrainofInGaNquantumwellsbyaprestrainedlayerandsubstrate,aswellasenhancedholeinjectionbya3DpnjunctionwithV-pits.

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.

简介：Theholeinjection,theradiativerecombinationandthedevicelumi-nescentefficienciesofamorphoussiliconcarbidethinfilmp-I-njunctionlightemit-tingdiodesarequantitativelycalculated,andtheeffectofthecarrier(especiallythehole)injectionandrecombinationprocessesonthedeviceluminescentcharacteris-ticsarerevealed.Withoutconsideringthedevicejunctiontemperature,itisroundthatthedeviceluminescentefficiencymainlydependsontheholeinjectionefficiencyatlowfieldandtheholeradiativerecombinationefficiencyathighfieldrespective-ly.Thetheoreticalanalysesareinwellagreementwiththeexperimentalresults.

简介：organics/metalSchottky用3被制作，4：简单热蒸发技术在ITO和Au之间夹的9,10-perylenetetracarboxylic-dianhydride(PTCDA)薄膜。当前电压(Ⅰ-Ⅴ)特征在开的空中在房间温度被调查。结果证明校正比率超过100。从thecapacitance频率(C-f)和电容电压(C-V)大小，在0.2～0.3eV之间的Schottky高度根据标准Schottky被获得理论。

简介：Diodes公司推出DMN61D8LVTQ双通道电感负载驱动器，适用于汽车电感负载开关应用，包括窗户、门锁、天线继电器、螺线管及小型直流电机。片上集成式齐纳二极管和偏置电阻器可排除对多个外部元件的需求，有效节省成本及缩减印刷电路板占位面积。电感负载开关一般需要续流二极管来抑制在开关启动时出现的电压尖峰，而DMN61D8LVTQ电感负载驱动器则利用低侧电路配置免除了对续流二极管的需求。这种配置使用反向齐纳二极管，提供内部MOSFET的有源过压漏极箝位。只要确保箝位电压设定在低于MOSFET的雪崩击穿电压，就可防止MOSFET受到破坏性瞬态电压的损害。

简介：Tris-(8-hydroxyquinoline)-aluminumeAlq3T–basedorganiclight-emittingdiodeswithCoelectrodearefabricated.Thepositivemagneticelectroluminescence(MEL)andmagneticconductance(MC)areobservedinthesamples,reaching4.35%and1.67%underthefieldof42mTat50K,respectively,andtheMELandMCtracescanbefittedtonon-Lorentzianlineshapes.TheMELvariesasafunctionoftheCothicknessandreachestheoptimalvalueat10nm.TheMELandMCdependenceonvoltageandtemperatureisalsoinvestigated.Theelectron-holepairmodelandthespin-polarizedinjectionmechanismareusedtounderstandtheexperimentalresults.

简介：<正>Diodes公司推出同步MOSFET控制器ZXGD3104N8,其额定电压为25V,适用于90W及以上的笔记本和便携式电脑的电源设计。这款新品能取代返驰式转换器内效率较低的肖特基二极管,并通过减少多达70%的整流器损耗,有效提升最高达3.5%的电源效率。因此,该器件有助电源供应系统更容易达到能源之星V2.0所规定的电源平均效率需达到87%的评级要求。

简介：Throughexperimentsandcomputersimulation,theinfluenceoftheenergylevelsoforganicmaterialsandelectrodematerialsintheorganiclight-emittingdiodes(OLEDs)onthedeviceperformancesisdiscussed.Resultsshowthatthedeviceperformancesareinfluencedbynotonlythecarrierinjectionbarriersattheelectrodeinterfacebutalsothebarriersattheorganicheterojunctioninterface.ThisresultishelpfultotheselectionoftheorganicmaterialsandtheirarrangementintheoptimaldesignofOLEDs.

简介：ＭｏｌｅｃｕｌａｒＤｏｐｅｄＰｏｌｙｍｅｒＬｉｇｈｔＥｍｉｔｉｎｇＤｉｏｄｅｓｗｉｔｈＡｉｒ－ｓｔａｂｌｅＡｌｕｍｉｎｕｍａｓＣａｔｈｏｄｅ①②ＣＨＥＮＢａｉｊｕｎ，ＨＯＵＪｉｎｇｙｉｎｇ．ＸＵＥＳｈａｎｈｕａ，ＬＩＵＳｈｉｙｏｎｇ（ＳｔａｔｅＫｅｙ...

简介：Novelmolecularmaterial,1-benzothiazoly-3-pheny1-pyrazoline(BTPP)wasfoundtofunctionasbrightbluelightemittingdyeinorganicelectroluminescentdevice,anditsopticalandelectriccharacteristicswereinvestigated.Thisheterovycliccompoundexhibitedgoodcharacteristicsofbluephotoluminescenceandelectroluminescence,whichhadtheemissionpeakat450nm.Thesinglelayerlight-emittingdevicesusingBTPPaslight-emittingmaterialdispersedinpoly(N-vinylcarbazole)(PVK)anddoublelayeronesusingPBDasholeblocklayerabovethelight-emittinglayerwerefabricatedusingconventionalspin-castingandvaccumvapourdepositionmethods.TheintroductionofPBDhasenhancedelectroninjectionandluminanceefficiency,comparedwiththesinglelayerLEDs.

简介：TheMOCVDgrowthofmodifiedAlAs/GaAsdoublebarrierresonanttunnelingdiodes(DBRTD)withanA1GaAschairwasreported.Theresonancestothefirstexcitedstateswereobtained.Thepeak-to-valleycur-rentratio(PVCR)is1.3at77K,roomtemperaturepeakcurrentdensityis8kA/cm~2.Theresonancevoltagesareinagreementwiththetheoreticalapproachbytransfer-matrixmethod.Influenceofinterruptedgrowthtimeatthehetero-interfaceandincorporationoftheAlGaAschairtothedeviceperformanceswerestudiedandthemechanismwasdiscussed.TheattempttoaddanAlGaAschairtotheDBRTDbyMOCVDresultedinimprovementinthePVCRandpeakcurrentdensity.

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简介：WeexaminethesaturationofrelativecurrentgainofIn0.53Ga0.47As/InPsinglephotonavalanchediodes(SPADs)operatedinGeigermode.Thepunch-throughvoltageandbreakdownvoltageoftheSPADscanbemeasuredusingasimpleandaccuratemethod.Theanalysismethodistemperature-independentandcanbeappliedtomostSPADs.

简介：<正>达尔科技(DIODES)7月19日在成都高新综合保税区的生产基地奠基。达迩科技(成都)有限公司,是由美商达尔科技股份有限公司和成都亚光电子股份有限公司共同出资组建。达迩科技成都成立于2010年12月,在今后几年项目总投资将分成数期在成都投资,建设表面贴装元器件及封装测试和半导体封测生产基地,员工最终将

简介：在Alq(3)层的洞传导性上做的2,3,5,6-tetrafluoro-7,7,8,8-tetracyanoquinodimethane(F4TCNQ)的效果被测量。在Alq(3)的洞唯一的设备，当前的密度在与F4TCNQ做之上在1-3数量级增加，建议做的罐头有效地提高Alq(3)的洞注射和洞运输能力。用F4TCNQ的一台器官的轻射出的设备做了Alq(3)洞注射和洞运输层，和太古的Alq(3)作为电子运输和射出的层被制作并且描绘的层。明亮的排放作为电子运输和射出的层作为洞运输层和内在的Alq(3)与做p的Alq(3)在简单OLED被完成。设备的射出的效率和亮度被插入薄电子块层在器官的层的中间限制搬运人再结合地区进一步改进。

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简介：Quantumdots(QDs)canachievehighquantumyieldsclosetounityinliquidsolutions,whereastheyexhibitadecreasedconversionefficiencyafterbeingintegratedintosolid-statepolymermatricesforlight-emittingdiode(LED)devices,whichiscalledthehostmatrixeffect.Inthisstudy,weproposeasolid–liquidhybrid-stateQD-LEDtosolvethisissue.Theethylene-terminatedpolydimethylsiloxane(ethylene-PDMS)isusedtoestablishasolid-statecross-linkednetwork,whereasthemethyl-terminatedPDMS(methyl-PDMS)isusedinitsliquidstate.Fromamacroscopiclevel,thecuredsolid–liquidhybrid-statePDMS(SLHP)compositesreachasolidstate,whichisstableandflexibleenoughtobeusedinLEDdevices.ComparedwithLEDsusingconventionalQD/solidPDMScompositesatequalcolorconversionefficiencyrangingfrom40%to60%,theluminousfluxofLEDswithQD/SLHPcompositesisincreasedby13.0%usinganoptimizedmethyl-PDMSconcentrationof85wt.%.Asaresult,highefficiencyQD-LEDsusingQDsastheonlycolorconvertorwithluminousefficacyof89.6lm/W(0.19A)wereachieved,whichshowaworkingstabilitycomparablewiththatusingconventionalsolid-statestructuresataharshcondition.Consequently,thenovelapproachshowsgreatpotentialforachievinghighefficiencyandhighstabilityQD-LEDs,whichisalsocompatiblewithcurrentstructuresusedinilluminationanddisplayapplications.