Metal plasmonic effect is one promising way for improving the performance and stability of the perovskite solar cells via optical-electrical behalves, and the ability is in proportion to the enhanced local electromagnetic fields induced by metal nanostructures. In our work, unique gold nanobipyramids (Au NBs) structures were explored and incorporated in the hole transport layer of planar heterojunction PSCs. This typical "bipyramid-like" metal nanostructure with sharp tips has the multiple and strong plasmonic absorption properties from visible to the NIR, exhibiting high plasmonic-induced probability. In addition, generated "hot spots" around Au NBs provided much stronger EM fields enhancements than conventional Au nanoparticles, hence enhanced light harvesting and improved interfacial charge dynamic process can be achieved simultaneously. As for the further investigation of the electrical property, hot holes injection induced by Au NBs effectively filled in the interfacial traps under operation condition, contributing to the improvement of the open circuit voltage, the elimination of the hysteresis effect and the long-term stability. Accordingly, the best PSC incorporated with Au NBs showed the PCE of 18.84% whereas the reference device just showed the PCE of 16.02%. Our work demonstrated that plasmonic metal nanostructures possessing the feature of "hot spots" offered a great potential to further expand the performance limitation and operation tolerance of the PSCs.

金属等离子体效应是通过光电行为改善钙钛矿太阳能电池性能和稳定性的一种有前途的方法，其能力与金属纳米结构引起的增强的局部电磁场成比例。在我们的工作中，探索了独特的金纳米双锥体（Au NBs）结构，并将其结合到平面异质结PSC的空穴传输层中。具有尖锐尖端的这种典型的“双金字塔状”金属纳米结构具有从可见光到近红外的多重且强的等离子体吸收特性，表现出高的等离子体诱发概率。此外，与传统的金纳米粒子相比，金纳米粒子周围产生的“热点”提供了更强的电磁场增强，因此，可以同时实现增强的光收集和改善的界面电荷动力学过程。关于电学性能的进一步研究，在工作条件下，由金纳米管引起的热空穴注入有效地填充在界面陷阱中，有助于改善开路电压，消除滞后效应和长期稳定性。因此，与Au结合使用的最佳PSCNB显示的PCE为18.84％，而参考设备的PCE仅为16.02％。我们的工作表明，具有“热点”特征的等离激元金属纳米结构为进一步扩大PSC的性能限制和操作耐受性提供了巨大的潜力。