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首页> 外文期刊>Advanced Functional Materials >Unique Seamlessly Bonded CNT@Craphene Hybrid Nanostructure Introduced in an Interlayer for Efficient and Stable Perovskite Solar Cells
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Unique Seamlessly Bonded CNT@Craphene Hybrid Nanostructure Introduced in an Interlayer for Efficient and Stable Perovskite Solar Cells

机译：在层间引入独特的无缝键合CNT @ Craphene杂化纳米结构，以实现高效稳定的钙钛矿太阳能电池

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摘要

1800475.1-1800475.12%Carbon nanomaterials have been widely used as an interlayer for realizing efficient and stable perovskite solar cells (PSCs). Theoretically, the design of a carbon composite interlayer that combines excellent conductivity with a high specific surface area is a better strategy than the application of pure nanocarbons. Here, an unusual seamlessly bonded carbon nanotube@graphene (CNT@G) hybrid nanomaterial was strategically synthesized and demonstrated to behave as an efficient interlayer for realizing efficient and stable PSCs. Due to the advantage of the seamless bond, the as-proposed hybrid nanostructure showed an apparent improvement compared to the use of CNTs only, graphene only, or a simple mixture of CNTs and graphene. The power conversion efficiency improved from 15.67% to 19.56% after introduction of the hybrid nanomaterial due to efficient carrier extraction, faster charge transport, and restrained carrier recombination. More importantly, PSCs with a CNT@G hybrid-decorated hole transport layer (HTL) showed good thermal stability during a 50 h heat-aging test at 100 degrees C and water stability under ambient humidity (30-50% relative humidity) for 500 h because the hybrid nanostructure exhibited an increased capability to block ion/molecule diffusion. Our results provide an alternative approach for fully exploring the potential application of nanocarbons in the development of high-performance PSCs.
机译：1800475.1-1800475.12％碳纳米材料已被广泛用作实现高效，稳定的钙钛矿太阳能电池（PSC）的中间层。从理论上讲，与纯纳米碳的应用相比，结合优异的导电性和高比表面积的碳复合中间层的设计是一种更好的策略。在这里，战略性地合成了一种不寻常的无缝键合碳纳米管/石墨烯（CNT @ G）杂化纳米材料，并被证明可以充当实现高效和稳定PSC的有效中间层。由于无缝键的优势，与仅使用碳纳米管，仅使用石墨烯或碳纳米管和石墨烯的简单混合物相比，拟议的杂化纳米结构显示出明显的改善。引入杂化纳米材料后，由于有效的载流子提取，更快的电荷传输和受限制的载流子复合，功率转换效率从15.67％提高到19.56％。更重要的是，具有CNT @ G杂化装饰空穴传输层（HTL）的PSC在100摄氏度的50小时热老化试验中表现出良好的热稳定性，在环境湿度（相对湿度30-50％）下的水稳定性为500 h是因为杂化纳米结构表现出增强的阻止离子/分子扩散的能力。我们的结果为充分探索纳米碳在高性能PSC开发中的潜在应用提供了另一种方法。

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  • 来源
    《Advanced Functional Materials》 |2018年第32期|1800475.1-1800475.12|共12页
  • 作者

    Li Xuanhua; Tong Tengteng; Wu Qinjiang; Guo Shaohui; Song Qiang; Han Jian; Huang Zhixiang;

  • 作者单位

    Northwestern Polytech Univ, State Key Lab Solidificat Proc, Res & Dev Inst,Sch Mat Sci & Engn, Northwestern Polytech Univ Shenzhen,Ctr Nano Ener, Xian 710072, Shaanxi, Peoples R China;

    Northwestern Polytech Univ, State Key Lab Solidificat Proc, Res & Dev Inst,Sch Mat Sci & Engn, Northwestern Polytech Univ Shenzhen,Ctr Nano Ener, Xian 710072, Shaanxi, Peoples R China;

    Northwestern Polytech Univ, State Key Lab Solidificat Proc, Res & Dev Inst,Sch Mat Sci & Engn, Northwestern Polytech Univ Shenzhen,Ctr Nano Ener, Xian 710072, Shaanxi, Peoples R China;

    Northwestern Polytech Univ, State Key Lab Solidificat Proc, Res & Dev Inst,Sch Mat Sci & Engn, Northwestern Polytech Univ Shenzhen,Ctr Nano Ener, Xian 710072, Shaanxi, Peoples R China;

    Northwestern Polytech Univ, State Key Lab Solidificat Proc, Res & Dev Inst,Sch Mat Sci & Engn, Northwestern Polytech Univ Shenzhen,Ctr Nano Ener, Xian 710072, Shaanxi, Peoples R China;

    Northwestern Polytech Univ, State Key Lab Solidificat Proc, Res & Dev Inst,Sch Mat Sci & Engn, Northwestern Polytech Univ Shenzhen,Ctr Nano Ener, Xian 710072, Shaanxi, Peoples R China;

    Anhui Univ, Minist Educ, Key Lab Intelligent Comp & Signal Proc, 3 Feixi Rd, Hefei 230039, Anhui, Peoples R China;

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  • 关键词

    carbon nanomaterials; efficiency; hybrid nanostructures; perovskite solar cells; stability;

    机译：碳纳米材料;效率;混合纳米结构;钙钛矿太阳能电池;稳定性;

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