Chem.J.ChineseUniversities,2023,44(7),2023012820230128(1/11)CHEMICALJOURNALOFCHINESEUNIVERSITIES高等学校化学学报研究论文客体增塑剂调控非卤溶剂中聚合物给体预聚集行为制备高性能有机太阳能电池陈海阳，李欣琪，丁俊源，黄雨婷，李耀文（苏州大学材料与化学化工学部,苏州市新型半导体光电材料与器件重点实验室,苏州215123）摘要随着以Y6为代表的非富勒烯受体的飞速发展,有机太阳能电池(OSCs)效率(PCE)已经突破19%.然而,其苛刻的制备条件(如使用高挥发性、剧毒的氯仿为溶剂)并不符合大面积印刷的技术要求和工业环保标准.本文设计并合成了一种具备硅氧烷重复单元侧链的客体分子BTP-3Si-4F,可作为增塑剂抑制PM6在非卤化(甲苯)溶液中的预聚集行为,从而获得纳米尺寸的优势相分离.最终,基于甲苯加工的PM6∶Y6∶BTP-3Si-4F和PM6∶BTP-eC9∶BTP-3Si-4F活性层分别获得了16.92%和17.64%的PCEs.本文结果表明,通过设计客体分子调控给体的预聚集行为是在非卤化溶液中制备高效OSCs的一种有效的通用策略.关键词有机太阳能电池；增塑剂；主客体活性层；预聚集中图分类号O631文献标志码Adoi：10.7503/cjcu20230128Pre-aggregationManipulationofPolymerDonorUsingGuestPlasticizersforDevelopingNonhalogenatedGreenSolventProcessedHigh-performanceOrganicSolarCellsCHENHaiyang，LIXinqi，DINGJunyuan，HUANGYuting，LIYaowen*（SuzhouKeyLaboratoryofNovelSemiconductor⁃optoelectronicsMaterialsandDevices，CollegeofChemistry，ChemicalEngineeringandMaterialsScience，SoochowUniversity，Suzhou215123，China）AbstractRecentadvancesinnon-fullereneacceptorslikeY6havepushedthepowerconversionefficiencies（PCEs）oforganicsolarcells（OSCs）above19%.However，theharshfabricationconditions，suchastheuseofthehighlyvolatilechloroformsolvent，arenotsuitableforlarge-areaprintingtechnologiesandenvironmentalstandards.Here，athirdcomponent（guest）BTP-3Si-4Fisdesignedandsynthesizedwithsiloxanerepeatingunitsinsidechains.TheguestBTP-3Si-4Fcouldactasaplasticizer，whichinhibitsthepre-aggregationbehaviorofPM6innonhalo-genated（toluene）solutionandenablestheactivelayertoformamorphologywithsuitablephaseseparationscale.Therefore，BTP-3Si-4FblendedwithPM6∶Y6andPM6∶BTP-eC9deliverthehighestPCEsof16.92%and...
