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Room-Temperature and Solution-Processable Cu-Doped Nickel Oxide Nanoparticles for Efficient Hole-Transport Layers of Flexible Large-Area Perovskite Solar Cells
ACS Applied Materials & Interfaces ( IF 9.5 ) Pub Date : 2017-11-22 00:00:00 , DOI: 10.1021/acsami.7b13621
Qiqi He , Kai Yao , Xiaofeng Wang , Xuefeng Xia , Shifeng Leng , Fan Li 1
Affiliation  

Flexible perovskite solar cells (PSCs) using plastic substrates have become one of the most attractive points in the field of thin-film solar cells. Low-temperature and solution-processable nanoparticles (NPs) enable the fabrication of semiconductor thin films in a simple and low-cost approach to function as charge-selective layers in flexible PSCs. Here, we synthesized phase-pure p-type Cu-doped NiOx NPs with good electrical properties, which can be processed to smooth, pinhole-free, and efficient hole transport layers (HTLs) with large-area uniformity over a wide range of film thickness using a room-temperature solution-processing technique. Such a high-quality inorganic HTL allows for the fabrication of flexible PSCs with an active area >1 cm2, which have a power conversion efficiency over 15.01% without hysteresis. Moreover, the Cu/NiOx NP-based flexible devices also demonstrate excellent air stability and mechanical stability compared to their counterpart fabricated on the pristine NiOx films. This work will contribute to the evolution of upscaling flexible PSCs with a simple fabrication process and high device performances.

中文翻译:

用于柔性大面积钙钛矿太阳能电池高效空穴传输层的室温和溶液可处理的掺杂铜的氧化镍纳米粒子。

使用塑料基板的柔性钙钛矿太阳能电池(PSC)已成为薄膜太阳能电池领域中最吸引人的方面之一。低温且可溶液处理的纳米颗粒(NPs)能够以简单且低成本的方法制造半导体薄膜,从而在柔性PSC中用作电荷选择层。在这里,我们合成了具有良好电性能的纯相p型掺杂Cu的NiO x NP,可以在宽范围的范围内将其加工成具有大面积均匀性的光滑,无针孔且有效的空穴传输层(HTL)。使用室温溶液处理技术的薄膜厚度。这种高质量的无机HTL允许制造有效面积> 1 cm 2的柔性PSC,其功率转换效率超过15.01%,且没有滞后。此外,与在原始NiO x薄膜上制造的同类产品相比,基于Cu / NiO x NP的柔性设备还具有出色的空气稳定性和机械稳定性。这项工作将有助于以简单的制造工艺和较高的器件性能来升级灵活的PSC。
更新日期:2017-11-22
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