CAS: 2239295-69-1; (4,8-Bis(4-Chloro-5-(2-Ethylhexyl)Thiophen-2-yl)Benzo[1,2-B:4,5-B']Dithiophene-2,6-Diyl)Bis(Trimethylstannane)

三甲基氯化锡,C34H40Cl2S4置于正丁基锂体系中,用 四氢呋喃,正己烷 用作溶剂,以85 %的收率获得(4,8-二(4-氯-5-(2-乙基己基)噻吩-2-基)苯并[1,2-B:4,5-B']二噻吩-2,6-二基)双三甲基锡
参考文献:Enhanced Photovoltaic Performance Of Asymmetrical Benzo Dithiophene Homopolymer Donor Materials In Nonfullerene Acceptor-Based Organic Photovoltaics
标题:Enhanced Photovoltaic Performance Of Asymmetrical Benzo Dithiophene Homopolymer Donor Materials In Nonfullerene Acceptor-Based Organic Photovoltaics
摘要:Although Much Promising Synthetic Progress In Conjugated Polymer-Based Organic Solar Cells (Oscs) Has Resulted In Significant Improvement In Power Conversion Efficiencies (Pces) Of From Over 15 To >19.0% In The Last Five Years,The Sophisticated And Complex Reactions From At Least Two Families' Monomers With Remarkably Different Electron Push-pull Effects Could Still Pose An Unavoidable Material Burden For The Commercialization Of Oscs In The Coming Future. Therefore,The Method Of Preparing A Homopolymer From A Sole Monomer Would Significantly Reduce The Synthetic Steps And Costs In Order To Pave The Way For The Large-Scale Production Of Osc Materials. Therefore,Alkylthio-Thiophenyl-Substituted Benzo[1,2-B;4,5-B']Dithiophene (Bdtts) As The Sole And Key Structural Moiety With Dihalogen And Distannyl Functional Groups Was Designed And Synthesized,Respectively,In This Study,For Facile Monomer Syntheses And Polymerizations To Achieve Three Wide-Bandgap Homopolymer Donors Of Bdtts-Alt-Bdtt-Cl (P13),Bdtts-Alt-Bdtt (P15),And Bdtts (P14),Respectively. The Structural Symmetry Dependency On Their Physical,Electrochemical,And Optical Properties,Thin-Film Morphologies,And Photovoltaic (Pv) Performance Was Investigated In Detail. As A Result,Oscs Based On The Asymmetric Polymer P15,Paired With Btp-Ec9 As The Electron Acceptor,Presented The Best Pv Performance,With A Pce Of 11.5%,A Fill Factor (Ff) Of 65.87%,And A Short-Circuit Current (Jsc) Of 22.04 Ma.cm−2,Respectively. This Pce Value Is Among The Highest Ones Reported For Bdt-Type Homopolymer Donor-Based Opvs,Providing Us With Knowledge For Obtaining Promising Pv Performance From Devices Made Of P15-Like Materials.
Doi:10.3390/molecules29061332