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首页> 外文期刊>Journal of Physics, D. Applied Physics: A Europhysics Journal >J-V and C-V investigation of the effect of small molecular fullerene and non-fullerene acceptors for CH3NH3PbI3 perovskite solar cell
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J-V and C-V investigation of the effect of small molecular fullerene and non-fullerene acceptors for CH3NH3PbI3 perovskite solar cell

机译：J-V和C-V对CH3NH3PBI3钙钛矿太阳能电池的小分子富勒烯和非富勒烯受体的影响

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摘要

To find the ideal acceptors for perovskite solar cells (PSCs) and get insight into the dielectric property at the interface between perovskite and acceptor, series of small molecular fullerene and non-fullerene acceptors were comparatively investigated. Fullerene acceptors based PSCs show higher performance than non-fullerene acceptors based PSCs. However, the perylene tetracarboxylic diimide based PSC has achieved a eta PCE of 4.70%, implying that it is a promising acceptor candidate for PSCs because of its suitable energy level, high electron mobility, and smooth surface. By employing double acceptors of (6,6)-phenyl-C61-butyric acid methyl ester (PCBM)/C-60 or PCBM/3,4,9,10-perylenetetracarboxylic bisbenzimidazole, the PSC stability is greatly improved even without performance enhancement. The perovskite (Pero)/PCBM film shows smooth surface, suggesting that PCBM penetrates into the Pero layer. The hydrophobicity trend of Pero/acceptor composite films is same as the device performance by judging from the water contact angle, and Pero/PCBM as well as Pero/C-60 show higher hydrophobicity than other Pero/small-molecular-acceptor composite films. Capacitance-voltage characteristics of the series of single and double acceptor based PSCs were measured. The double acceptor based PSCs show larger depletion layer width (W-d) than single acceptor based PSCs. Meanwhile, the defect density (N-A) in Pero layer for single acceptor based PSCs is larger than that for double acceptor based PSCs, implying better n-doping of Pero layer by using a single acceptor.
机译：为了找到佩罗夫斯基钛矿太阳能电池（PSC）的理想受护者，并在钙钛矿和受体之间的界面处获得介电学，一系列的小分子富勒烯和非富勒烯受体相对调查。基于Fullerene受体的PSC表现出比基于非富勒烯受体的PSC的性能更高。然而，基于细胞羧基二酰亚胺的PSC已经实现了4.70％的ETA PCE，这意味着它是PSC的有望的受体候选者，因为其合适的能级，高电子迁移率和光滑的表面。通过使用（6,6） - 苯基-C61-丁酸甲酯（PCBM）/ C-60或PCBM / 3,4,9,1010-苯并羧酸二苯咪唑（PCBM）/ C-60或PCBM / 3,4,9,10-10-苯并咪唑的双苯甲酰亚胺咪唑即使没有性能增强，PSC稳定性大大提高。 PEROVSKITE（PERO）/ PCBM薄膜显示光滑的表面，表明PCBM渗透到PERO层中。珀罗/受体复合膜的疏水性趋势与通过从水接触角判断的器件性能以及Pero / PCBM以及Pero / C-60的疏水性，显示出比其他珀罗/小分子受体复合膜更高的疏水性。测量了基于单一的单个受体的PSC系列的电容 - 电压特性。基于双受体的PSC显示出比基于单个受体的PSC的耗尽层宽度（W-D）。同时，对于基于单个受体的PSC的PERO层中的缺陷密度（N-A）大于基于双受体的PSC的PSC，这暗示通过使用单个受体来更好地掺杂Pero层。

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    Zheng Yanqiong; Wang Chao; Yu Junle; Yang Fang; Zhang Jing; Wei Bin; Li Weishi;

  • 作者单位

    Shanghai Univ Minist Educ Key Lab Adv Display &

    Syst Applicat 149 Yanchang Rd Shanghai 200072 Peoples R China;

    Shanghai Univ Minist Educ Key Lab Adv Display &

    Syst Applicat 149 Yanchang Rd Shanghai 200072 Peoples R China;

    Shanghai Univ Minist Educ Key Lab Adv Display &

    Syst Applicat 149 Yanchang Rd Shanghai 200072 Peoples R China;

    Shanghai Univ Minist Educ Key Lab Adv Display &

    Syst Applicat 149 Yanchang Rd Shanghai 200072 Peoples R China;

    Shanghai Univ Minist Educ Key Lab Adv Display &

    Syst Applicat 149 Yanchang Rd Shanghai 200072 Peoples R China;

    Shanghai Univ Minist Educ Key Lab Adv Display &

    Syst Applicat 149 Yanchang Rd Shanghai 200072 Peoples R China;

    Chinese Acad Sci Shanghai Inst Organ Chem Lab Synthet &

    Self Assembly Chem Organ Funct Mol 345 Lingling Rd Shanghai 200032 Peoples R China;

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  • 正文语种 eng
  • 中图分类 应用物理学;
  • 关键词

    perovskite solar cells; single and double acceptor; current-voltage; capacitance-voltage;

    机译：Perovskite太阳能电池;单双和双重受体;电流电压;电容电压;

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