桂林电子科技大学学报Issue(5)：535-543,9.DOI:10.16725/j.1673-808X.2022127
采用高结晶非富勒烯受体的高性能三元有机太阳能电池
High-efficiency ternary organic solar cells using highly crystalline non-fullerene acceptor
摘要
Abstract
Obtaining high-quality thin films from the active layer is a prerequisite for the preparation of high-performance ternary or-ganic solar cells(TOSCs),introducing the third component with high crystallinity is one of the simple and effective methods to opti-mize thin films..A series of TOSCs were prepared using the highly crystalline non-fullerene acceptor ITIC-Th as the third compo-nent,together with the non-fullerene acceptor BTP-BO-4F and the polymer donor PM6.As a morphology modifier,ITIC-Th can op-timize the molecular arrangement and phase separation of thin films;as a third component with complementary spectral absorption,ITIC-Th can broaden the spectral absorption range of the active layer.In addition,ITIC-Th and BTP-BO-4F easily form an alloy state,which can inhibit the non-radiative recombination of the device.When the content of ITIC-Th is 5％,the TOSCs have the best performance,the power conversion efficiency(PCE)is 17.66％,the short-circuit current density(JSC)is 26.51 mA·cm-2,and the open-circuit voltage(VOC)is 0.862 V,with a fill factor(FF)of 77.32％,which are mainly due to ITIC-Th as the third component that synergistically optimizes the photon trapping,exciton dissociation,carrier transport,and charge collection of the device,resulting in high-performance TOSCs.Selecting a highly crystalline non-fullerene acceptor as the third component is an effective strategy to pre-pare high-performance TOSCs,which is beneficial to advance the commercialization of TOSCs.关键词
三元有机太阳能电池/形貌调节剂/活性层/分子排列/相分离Key words
ternary organic solar cell/morphology modifier/active layer/molecular arrangement/phase separation分类
信息技术与安全科学引用本文复制引用
邓正起,黄天环,张坚..采用高结晶非富勒烯受体的高性能三元有机太阳能电池[J].桂林电子科技大学学报,2024,(5):535-543,9.基金项目
国家自然科学基金(61774050) （61774050）
广西自然科学基金(2019GXNSFGA245005) （2019GXNSFGA245005）
广西科学研究与技术发展计划(2020ZYZX2005) （2020ZYZX2005）
桂林电子科技大学研究生教育创新计划(2021YCXS157) （2021YCXS157）
