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首页> 外文期刊>RSC Advances >Totally room-temperature solution-processing method for fabricating flexible perovskite solar cells using an Nb2O5-TiO2 electron transport layer
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Totally room-temperature solution-processing method for fabricating flexible perovskite solar cells using an Nb2O5-TiO2 electron transport layer

机译：使用Nb2O5-TiO2电子传输层来制造柔性钙钛矿太阳能电池的完全室温溶液处理方法

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摘要

Flexible perovskite solar cells are new technology-based products developed by the global solar industry and are promising candidates for realizing a flexible and lightweight energy supply system for wearable and portable electronic devices. A critical issue for flexible perovskite solar cells is to achieve high power conversion efficiency (PCE) while using low-temperature solution-based technology for the fabrication of a compact charge collection layer. Herein, we innovatively introduce niobium ethoxide as a precursor additive to TiO2 NCs, which allows realization of an Nb2O5-TiO2 electron transport layer (ETL). The presence of Nb2O5 remarkably enhances electron mobility and electrical conductivity of the ETLs. In addition, uniform perovskite films are prepared by an annealing-free solution-based method. The excellent performance of the cell is attributed to its smooth film surface and high electron mobility, and performance is verified by the effective suppressions of charge recombination and time-resolved photoluminescence. PCEs of 15.25% and 13.60% were obtained for rigid substrates (glass/fluorine-doped tin oxide) and an indium tin oxide/PET (poly(ethylene terephthalate)) flexible substrate by using a totally room-temperature solution-processing method, respectively.
机译：灵活的Perovskite太阳能电池是由全球太阳能行业开发的新技术产品，并且是实现可穿戴和便携式电子设备的灵活和轻质的能源系统的候选人。灵活的Perovskite太阳能电池的关键问题是在使用基于低温溶液的技术的同时实现高功率转换效率（PCE），用于制造紧凑的电荷收集层。在此，我们创新地将乙氧胺作为前体添加剂引入TiO 2 NCS的乙氧铌，这允许实现Nb2O5-TiO2电子传输层（EtL）。 Nb2O5的存在显着提高了EtL的电子迁移率和电导率。此外，通过无退火的基于溶液的方法制备均匀的钙钛矿薄膜。电池的优异性能归因于其光滑的膜表面和高电子迁移率，并且通过有效抑制电荷重组和时间分离的光致发光来验证性能。通过使用完全室温溶液加工方法，为刚性基材（玻璃/氟掺杂的氧化锡）和氧化铟锡/ PET（聚（乙二醇酯））柔性基材提供15.25％和13.60％的PCE 。

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  • 来源
    《RSC Advances》 |2018年第23期|共9页
  • 作者

    Jiang Jun; Wang Shubo; Jia Xuguang; Fang Xiang; Zhang Shuai; Zhang Jing; Liu Wei; Ding Jianning; Yuan Ningyi;

  • 作者单位

    Changzhou Univ Jiangsu Collaborat Innovat Ctr Photovolta Sci &

    E Jiangsu Prov Cultivat Base State Key Lab Photovol Sch Mat Sci &

    Engn Changzhou 213164 Jiangsu Peoples R China;

    Changzhou Univ Jiangsu Collaborat Innovat Ctr Photovolta Sci &

    E Jiangsu Prov Cultivat Base State Key Lab Photovol Sch Mat Sci &

    Engn Changzhou 213164 Jiangsu Peoples R China;

    Changzhou Univ Jiangsu Collaborat Innovat Ctr Photovolta Sci &

    E Jiangsu Prov Cultivat Base State Key Lab Photovol Sch Mat Sci &

    Engn Changzhou 213164 Jiangsu Peoples R China;

    Changzhou Univ Jiangsu Collaborat Innovat Ctr Photovolta Sci &

    E Jiangsu Prov Cultivat Base State Key Lab Photovol Sch Mat Sci &

    Engn Changzhou 213164 Jiangsu Peoples R China;

    Changzhou Univ Jiangsu Collaborat Innovat Ctr Photovolta Sci &

    E Jiangsu Prov Cultivat Base State Key Lab Photovol Sch Mat Sci &

    Engn Changzhou 213164 Jiangsu Peoples R China;

    Changzhou Univ Jiangsu Collaborat Innovat Ctr Photovolta Sci &

    E Jiangsu Prov Cultivat Base State Key Lab Photovol Sch Mat Sci &

    Engn Changzhou 213164 Jiangsu Peoples R China;

    Changzhou Univ Jiangsu Collaborat Innovat Ctr Photovolta Sci &

    E Jiangsu Prov Cultivat Base State Key Lab Photovol Sch Mat Sci &

    Engn Changzhou 213164 Jiangsu Peoples R China;

    Changzhou Univ Jiangsu Collaborat Innovat Ctr Photovolta Sci &

    E Jiangsu Prov Cultivat Base State Key Lab Photovol Sch Mat Sci &

    Engn Changzhou 213164 Jiangsu Peoples R China;

    Changzhou Univ Jiangsu Collaborat Innovat Ctr Photovolta Sci &

    E Jiangsu Prov Cultivat Base State Key Lab Photovol Sch Mat Sci &

    Engn Changzhou 213164 Jiangsu Peoples R China;

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  • 中图分类 化学;
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