含均苯四甲酸二酰亞胺受體單元的共軛聚合物的合成及其在聚全物太陽能電池上的應用.pdf

1、南昌大學碩士學位論文含均苯四甲酸二酰亞胺受體單元的共軛聚合物的合成及其在聚全物太陽能電池上的應用姓名：楊述申請學位級別：碩士專業(yè)：高分子化學與物理指導教師：楊震宇；丁黎明20120606ABSTRACT————————————————————————————————————————_——————————————————_——————一———_——————__———__—_——_一ABSTRACTTheabsorptionspectra，

2、chargecarriermobility，HOMOandLUMOenergylevelsofconjugatedpolymersarethemajorfactorsforthepowerconversionefficiency(PCE)ofpolymersolarcells(PSCs)Bystartingwiththeintroductionofthestrongelectrondeficientsegmentpyromellitic

3、diimide(PMDI)，thisdissertationisfocusingondesignandsynthesisofnewidealconjugatedpolymerscontainingPMDIunitwithlowlyinglowestunoccupiedmolecularorbitals(LUMO)andnarrowbandgapsThenewconjugatedpolymersarebasedonPMDIunitandd

4、ifferentelectronrichunitswith“DA’’and“D7c—A”structuresThepolymerswerecharacterizedby1HNMR，1jCNMR，andFTIR，andthemolecularweight，thermalstabilityphotophysicalandelectrochemicalpropertiesofthepolymerswereinvestigatedbyGPC，T

5、GA，UVⅥsabsorptionspectraandcyclicvoltammetrymeasurementsForthefirsttime，polymerscontainingthePMDIunitwereappliedtobulkheterojunctionPSCsandtheirphotovoltaicpropertiesweremeasuredThemainreS’ultsareasfollows：1“D—A”copolyme

6、rsP1P4weredesignedandsynthesizedwhichbasedonPMDIunitandfourdifferentelectronrichunitsTheirLUMOandHOMOenergylevelsstaylow。TheHOMOenergylevelslieintherangeof558～一617eVwhichbenefithighVocvaluesforthesolarcellsbasedonthesepc

7、lymersTheabsorptionofthepolymerscanberedshifedandthebandgapsCanbenarrowedbyaddingathiopheneunitorincreasingthedonatingabilityofthedonorunitsofthesepolymersHighopencircuitvoltages(Voc)wereobtainedforthesepolymers，butthesh

8、ortcircuitcurrentdensity(Jsc)werelowThePCEofthePSCbasedonP3achievedO064％，andtheV。。is069V2“D一7cA”copolymersP5NP7containingthiophem：unitweredesignedandsynthesizedwhichbasedonacceptorunitPMDIanddifferentelectron—richunitsTh