這里的ZGGO:Cr、鎖反Yb、鎖反Er和ZLGO:Mn余輝粉的混合物印花防偽技術(shù)具有更高的安全性和穩(wěn)定性好、無色移等優(yōu)點,且識別唯一、成本低廉和應(yīng)用簡單等特點,為設(shè)計和制備先進(jìn)的防偽余輝材料提供了新的思路。作為替代方案,成交長余輝發(fā)光材料可以在激發(fā)停止后發(fā)出持續(xù)數(shù)分鐘到數(shù)小時甚至數(shù)天的發(fā)光,成交由于其完全消除了背景熒光而擁有高的信噪比,因此,在防偽應(yīng)用和信息加密方面特別受到青睞。到1的連近年來關(guān)于動態(tài)防偽技術(shù)的研究主要是基于上轉(zhuǎn)換和光激勵發(fā)光實現(xiàn)的。

成交價來到 16 萬元,鋰價暴跌的連鎖反應(yīng)

暴跌但將長余輝材料應(yīng)用于動態(tài)防偽的研究與報道還很少。近年來,鎖反隨著假冒偽劣產(chǎn)品和信息泄露案件日益增多,產(chǎn)品防偽與信息保護(hù)已經(jīng)成為眾多行業(yè)密切關(guān)注的熱點科學(xué)問題。

成交價來到 16 萬元,鋰價暴跌的連鎖反應(yīng)

?然而,成交在混合余輝熒光粉中實現(xiàn)可變色的動態(tài)余輝發(fā)射要求兩種色彩的余輝熒光粉末(1)具有高的余輝強度和長的余輝壽命。

到1的連Fig.1?Quintupleluminescencemodes?(PL,PersL,PSL,PSPLandUCL)?ofZGGO:Cr,Yb,Er?phosphors.?(a)Calcination?temperature-dependentPLexcitationspectramonitoringat701nmandPLemissionspectraunder365nmlightexcitation.(b)?PersLdecaycurvesmonitoredat701?nmafterirradiatedbya365?nmUVlampfor5?min.TheinsetshowsthePersLemissionspectrumrecordedat7sdecay.(c)UCLandUCL+PSLspectraofZGGO:Cr,Yb,Er-1300phosphor?upon808nm(1W)and980nm(0.7W)laserdiodesirradiation.FortheUCLmeasurements,thesamplewasfresh,whilefortheUCL+PSLmeasurements,thesamplewaspre-irradiatedbya365nmUVlampfor5min.(d)?RepeatedPSLandPSPLemissionsignalsofadecayingZGGO:Cr,Yb,Er-1300samplemonitoredat701?nm.Duringthedecay,thesamplewasperiodically(1mininterval)irradiatedbya980nmlaserdiode(at0.7W)for40s.(e)DigitalPL,PersL,UCL+PSLandPSPLimagesofZGGO:Cr,Yb,Er-1300?phosphor?underandafter365nm,808nmand980nmirradiation.BeforetheUCL+PSLimaging,thesampleswerepre-irradiatedbya365nmUVlampanddecayedtobeinvisibletothenakedeye.Theimagingparameterismanual/ISO3200/4sFig.2?Schematicillustrationofmulti-modeluminescenceandanti-counterfeitingdesignofredZGGO:Cr,Yb,ErandgreenZLGO:Mnpersistent?phosphors.(a)Schematicdiagram;(b)Thevariableemissioncolours,multi-modeluminescence(UCL,PL,PersL,PSLandPSPL),andthedynamicevolutionofthePersLemissionbrightnessandcoloursunderdifferentexcitationconditionsformulti-levelanti-counterfeitingapplications.Fig.?3??Digitalimagesofaquintuple-mode(PL,?PersL,?UCL,PSLandPSPL?modes)‘dragonfly-on-lotuspatternprintedusing?ZLGO:Mn-900andZGGO:Cr,Yb,Er-1300phosphors(dragonfly)andZGGO:Cr,Yb,Er-1300phosphor(lotus).(a)?Thedesign?ofthe‘dragonfly-on-lotus?pattern.?(b–f)PLandPersLimagesobtainedunderandaftera365nmUVlampirradiation(for5min).?(g,h)UCL+PSLandPSPLimagesunderandafteran808nmNIRlaserdiodeirradiation(at0.6W).(i,j)?UCL+PSLandPSPLimagesunderandaftera980nmNIRlaserdiodeirradiation(0.6W).(k)UCLimageofafreshpattern(withoutUVpre-irradiation)underan808nmlaserdiodeirradiation(at1W).(l)UCLimageofafreshpatternundera980nmlaserdiodeirradiation(at0.6W).?TheUCL+PSLimagingwasconductedafterboththedragonflyandthelotuswereinvisibletothenakedeye.Theimagingparameterismanual/ISO3200/4sfor(b-g,i,k,l)andmanual/ISO3200/15sfor(h,j),respectively.Quintuple-modedynamicanti-counterfeitingusingmulti-modepersistentphosphors.DangliGao,JieGao,FengGao,QingqingKuang,YongPan,YafeiChen,ZhengweiPanFirstpublished:03November2021JournalofMaterialsChemistryC,2021,https://doi.org/10.1039/D1TC04568G??堪O(shè)計同樣講究人體工程學(xué),暴跌床架的高度、靠背的傾斜度、以及靠包支撐貼合度等方面完美切合人體。

選料精致考究,鎖反做工精細(xì),輔以流暢的線條,獨創(chuàng)清新、柔美、俊朗之格調(diào),將高科技與美學(xué)作精彩的演繹,盡展精致悅己生活理念。從配色到功能,成交再到使用場景,顛覆了傳統(tǒng)寢具的刻板印象。

艾蒙蕾詩寢具,到1的連帶著源于頂奢的時尚印記,將生活與藝術(shù)完美融合,令人一眼心動,更令人在生活本真中感受不一樣的時尚魅力??臻g搭配的艾蒙蕾詩美國健康睡眠系列床墊,暴跌以3D科技纖維作為舒適層,暴跌全方位呵護(hù)脊椎,使人體處于完全放松的狀態(tài),為消費者帶來健康舒適的睡眠體驗。

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