Improving ordering extent and photovoltaic properties by extending π–conjugated area of electron-donating unit in polymer with d-a structure，第十届高分子物理国际研讨会（PP’2012)(2012.6.4~8，成都）-中国聚合物网,论文下载

Improving ordering extent and photovoltaic properties by extending π–conjugated area of electron-donating unit in polymer with d-a structure

资料类型：

PDF文件

关键词：

资料大小：

105K

所属学科：

分子表征

来源：

第十届高分子物理国际研讨会（PP’2012)(2012.6.4~8，成都）

简介：

Understandingthecorrelationamongmolecularstructure,thinfilmmorphologyandphotovoltaicpropertiesofconjugatedpolymerappliedinbulkheterojunction(BHJ)polymersolarcells(PSCs)isofcriticalimportanceindesigninghigherefficiencyphotovoltaicpolymers.Consideringthatfeweffectivemethodsonthecontrolandoptimizationofstructuralorderandmorphologyofphotovoltaicblendsthroughabottom-upapproach,e.g.frommolecularstructuredesigntomorphologymodulationandthustophotovoltaicperformanceenhancement,hasbeeninvestigated,weproposedasystematicmethodologyofachievingstructuralorderandthusrelatedmorphologybymoleculardesignandsyntheticefforts:byextendingtheπ-conjugationareainatwo-dimensionalwayandreleasinggeometryhindrancewhichcouldincreasethepolymerinterchaininteraction,thusenhancingstructuralorder,self-assemblyandcarriermobility.Inourinvestigation,theprimarypolymer,namedasPBDTTT-S,exhibitsnostructuralorderduetothestrongsterichindrancecausedbyitsnon-coplanarsulfonylgroups.FromPBDTTT-StoPBDTDTTT-S-T,theπ-conjugatedareawasextendedinbothverticalandparalleldirections,fromwhichthesterichindranceofsidegroupswasreducedandthustheinter-molecularπ-πstackingwasenhanced.Adistinctiveorderedstructurewithwelldefined(100)and(010)chainregistrationwasobservedbygrazingincidenceX-rayscattering(GIXS)ofPBDTDTTT-S-T.Theincreasedinter-chainπ-overlapareaandorderedpackingstructureofPBDTDTTT-S-Tresultsinagoodholemobilityof2.76ｘ10-3cm2V-1s-1,whichisoneorderofmagnitudehigherthanthatofPBDTTT-S.SolarcellsbyPBDTDTTT-S-Tblendedwith[6,6]-phenylC70-butyricacidmethylester(PC70BM)exhibitsapowerconversionefficiency(PCE)of7.81%,whichis25%higherinefficiencycomparedwiththeoriginalpolymerPBDTTT-S.Moreimportantly,thisworktriedtoestablishafundamentalunderstandingofthecorrelationamongmolecularstructure,thinfilmmorphologyandphotovoltaicpropertiesofconjugatedpolymers,whichprovidesaguidanceformoleculardesignofnewphotovoltaicpolymers.

作者：

Ye Huang, Xia Guo, Feng Liu, Lijun Huo, Thomas P. Russell, Yongfang Li, Jianhui Hou, Charles C. Han

上传时间：

2012-11-26 14:11:11

下载次数：

消耗积分：

立即下载：

好

1人

中

1人

差

1人

友情提示：下载后对该资源进行评论，即可奖励2分。

报告错误：

1.下载无效　 2. 资料明显无价值　 3. 资料重复存在

相关评论 共有0人发表评论

更多评论

你还没有登录，无法发表评论，请首先

免责声明：本站部分资源由网友推荐，来自互联网，版权属于原版权人，如果不慎侵犯到您的权利，敬请告知，我们会在第一时间撤除。本站中各网友的评论只代表其个人观点，不代表本站同意其观点。

最新上传资料
·	The comparison of butadiene r...
·	The morphology and particle c...
·	Self-assembly of rod-rod blo...
·	Network formation and crystal...
·	High performance composite fi...
·	Shear-induced crystallization...
·	Phase separation and dewettin...
·	Full α to β crystal form tr...
·	Study on chain orientation b...
·	A novel electroactive actuato...
·	Self-assembly of binary mixed...
·	Crosslink induced phase separ...
·	Nanoporous gyroid epoxy with ...
更多>>

热点资料
·	Dynamic of polyeletrolytes in...
·	Reduced packing density causi...
·	Role of particle softness on...
·	Self-assembly of binary mixed...
·	Self-assembly of rod-rod blo...
·	The morphology and particle c...
·	Characterization of branched ...
·	Kinetic treatment for the hyp...
·	Double metal cyanide complexe...
·	Liquid-liquid phase separatio...
·	Formation of banded spherulit...
·	Does PNIPAM block really ret...
·	Mobility of interfacial layer...
更多>>

相关资料
·	丁苯橡胶生胶抗氧效果的热分析方...
·	填料类型对天然橡胶复合材料裂纹...
·	离心纺丝制备聚偏氟乙烯纳米纤维
·	通过加入超细全硫化粉末橡胶大幅...
·	PBS/PLA高阻隔全降解薄膜的结...
·	通过隔离结构制备高导热高分子复...
·	流动诱导结晶中反常的长链结构依...
更多>>