Built-in voltage enhanced by in-situ electrochemical polymerized undoped conjugated hole-transportin

来源 :第七届新型太阳能电池材料科学与技术学术研讨会 | 被引量 : 0次 | 上传用户:b188413920
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  In this research,a new electropolymerized(EP)film named polytriphenylcarbazole fluoranthene(p-TPCF)has been in-situ synthesized by electrochemical cyclic voltammetry method,and applied to tune the work-function(WF)of the PEDOT:PSS hole-transporting layer(HTL)in organic solar cells(OSCs).
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Porous carbon-based materials modified with various heteroatoms have been regarded as cheap and efficient novel electrocatalysts in the catalyst field.
染料聚集是染料敏化太阳能电池(DSSC)研究中常见的不利现象,通常通过添加抑制剂(如鹅去氧胆酸,CDCA)来减少其影响。我们曾报道了一系列基于新型刚性螺结构——螺[二苯并[3,4:6,7]环庚[1,2-b]喹喔啉-10,9-芴]——的有机染料分子。
As an important part of dye-sensitized solar cells(DSSCs),the counter electrode(CE)plays a decisive role in collecting electrons from external circuits and catalytically reducing I3-to I-in the electr
Hybrid organic-inorganic halide perovskites with the prototype material of CH3NH3PbI3 have recently attracted intense interest as promising candidates for various optoelectronic applications such as s
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The development of an efficient and low-cost synthesis method to prepare highly stable non-noble metal counter electrode(CE)electrocatalysts for dye-sensitized solar cells(DSSC)is a crucial issue.
相比有机-无机杂化钙钛矿太阳能电池,无机钙钛矿材料CsPbI3 由于热稳定性好而成为钙钛矿太阳能电池研究领域的热点之一[1-2]。但是CsPbI3 热力学稳定性差以及离子迁移导致的离子不均匀分布限制了其光电转换效率和长周期稳定性[3-4]。
三元策略已经被证实是提高有机光伏器件(OPVs)性能的有效方法.在该工作中,基于PM6:Y6 为有源层的器件效率被优化至15.7%.基于该高效二元体系,非富勒烯材料Br-ITIC 和富勒烯衍生物PC71BM 被选为第三组分来制备三元OPVs,效率分别被提升至16.4%和16.2%,相应器件的短路电流密度为25.5 mA cm-2 vs.25.6 mA cm-2,开路电压为0.854 V vs.0.
Further improvement on power conversion efficiency of dye-sensitized solar cell has encountered great challenge since the paradox in simultaneous enhancement of photocurrent and photovoltage.
三元器件的活性层形貌一直是困扰学者的问题。在PBDB-T:ITIC 体系中,加入第三组分PDCBT 和P3HT,通过Flory-Huggins 参数的计算,发现PDCBT 和P3HT与给体PBDB-T 的相容性非常好。少量的PDCBT 和P3HT 与PBDB-T 混合都能形成双分子结晶。