鈣鈦礦文獻報告課件

1、Paper 3:oMethoxy Substituents in Spiro-OMeTAD for Efficient InorganicOrganic Hybrid Perovskite Solar CellsNam Joong Jeon, Hag Geun Lee, Young Chan Kim, Jangwon Seo, Jun Hong Noh,Jaemin Lee,and Sang Il SeokDepartment of Energy Science, Sungkyunkwan University, Suwon 440-746Topic 1 : the simple develo

2、pment process relating to spiro-OMeTAD in DSSCs andPerovskite Solar Cellsspiro-OMeTAD as a solid hole conductor in DSSCsPCE of 0.74%spiro-OMeTAD doping with t-BP and LiTFSIPCE of 2.56%spiro-OMeTAD doping with Co complexPCE of 7.2%P3HT,PCBTDPP,PTAA,PDI,TDPsynthesis and purification are difficult or p

3、erformance was poorCathodep-type hole transporterPerovskite absorbern-type compact layeranodeGlassHEgeneric structure Topic 2 : finetune the electronic properties through changing the substitutionposition of the OMe group in HTMsTwo opposite effects of the OMe substituent depending on thesubstitutio

4、n position in the aromatic ring: electron-donating at the para position and electron-withdrawing at the meta positionOMe There are no reports on the application of ortho and meta derivatives of spiro-OMeTAD as HTMs in perovskite-based solar cells. Hence,we decided to investigate the effect of replac

5、ing p-OMe groups in spiro-OMeTAD with o- and m-OMe groupspp-spiro-OMeTADelectron-donatinginfluence the oxidation potentialpm-spiro-OMeTADelectron-withdrawingpo-spiro-OMeTADTopic 3 : the synthesis , characterization measurements of three spiro-OMeTAD derivatives and their application in perovskite-ba

6、sed solar cells and analysis 3.1 : the synthesis and identifying of three spiro-OMeTAD derivativesthree spiro-OMeTAD compounds were purified by column chromatography followed by recrystallization and characterized by1H/13C NMR spectroscopy and mass spectrometry3.2 : measurements and analysisUVvis ab

7、sorption spectra of pp-, pm-, and po-spiro-OMeTAD inchlorobenzene. (b) Cyclic voltammograms of pp-, pm-,and po-spiro-OMeTAD. (c) Energy level diagram for the corresponding materials used in our devicesGain energy levelPosition of -oMeStructure and effect Electronic effectHOMO and LUMO energyRs and R

8、shFFpmInductive effectelectron-withdrawingHOMO:-5.31evLUMO:-2.31EVreference65.2%ppresonance stabilizationelectron-donatingHOMO:-5.22evLUMO:-2.28EVLowestRs and highestRsh77.1%poIncreasing dihedral angle between theo-OMe and the fluorene ring, which decreases theeffective conjugation of the moleculeelectron-donatingHOMO:-5.22evLUMO:-2.18EVHighest LUMO blocking elect