瞬态荧光方法研究溶剂诱导的三苯胺衍生物的对称性破缺电荷转移动力学（英文）

瞬态荧光方法研究溶剂诱导的三苯胺衍生物的对称性破缺电荷转移动力学（英文）Transients fluorescence method for the study of solvent-induced

瞬态荧光方法研究溶剂诱导的三苯胺衍生物的对称性 破缺电荷转移动力学（英文） Transientsfluorescencemethodforthestudyof solvent-inducedsymmetrybreakingchargetransferkineticsof triphenylaminederivatives Abstract Inthisstudy,thesolvent-inducedsymmetrybreakingcharge transferkineticsoftriphenylaminederivativeswereinvestigated usingthetransientfluorescencemethod.Thefluorescencespectra ofthemoleculesindifferentsolventsweremeasured,andthe fluorescencelifetimeswerecalculatedusingtime-resolved fluorescencedecays.Theresultsshowedthatthesolvents significantlyinfluencedthesymmetrybreakingchargetransfer dynamicsofthetriphenylaminederivatives.Specifically,the additionofapolarsolventcausedadecreaseinthesymmetryof themolecules,leadingtoafasterchargetransferprocess.These findingsprovideinsightsintothedesignofmaterialsfororganic electronicapplications. Introduction Chargetransferprocessesplayacriticalroleinthe functioningoforganicelectronicmaterials,suchasorganicsolar cellsandlight-emittingdiodes.Insuchmaterials,thesymmetryof themoleculesandtheirinteractionswiththeenvironmentcan significantlyinfluencethechargetransferdynamics. Triphenylaminederivativesareaclassofmaterialsthatexhibit significantchargetransferpropertiesandhavefoundwidespread useinvariousorganicelectronicapplications.Inthisstudy,we investigatetheinfluenceofsolventsonthesymmetrybreaking chargetransferkineticsoftriphenylaminederivativesusingthe transientfluorescencemethod. Experimental Thesampleswerepreparedbydissolvingthetriphenylamine derivativesindifferentsolvents,includingchloroform, dichloromethane,andacetonitrile.Thefluorescencespectraofthe solutionswererecordedusingaspectrophotometer,whilethe fluorescencedecaysweremeasuredusingtime-correlated