datasheet1_Effect of Plasmonic Nanostructures on the Optical Properties of CH3NH3PbI Perovskite Films.pdf

This paper investigated the optical properties of both silver island films (SIF) and CH3NH3PbI3 perovskite films obtained on the surface of SIF. It was found that the surface morphology of SIF has a substantial effect on the optical density of perovskite films. Furthermore, a significant redshift in the absorption spectrum of the island films was observed when perovskite is deposited on them. The intensity and lifetime of the luminescence of perovskite films on the surface of the island films depend on the wavelength of the exciting light. The results indicate that SIFs not only can be potentially used to increase the intensity of light emitting diodes based on perovskites, but also prolong the lifetime of charge carriers in perovskites, and thus lead to potentially improve the photovoltaic properties of perovskite solar cells.

本研究探讨了银岛薄膜（SIF）和CH3NH3PbI3钙钛矿薄膜在SIF表面的光学特性。研究表明，SIF的表面形貌对钙钛矿薄膜的光学密度具有显著影响。此外，当钙钛矿薄膜沉积于岛状薄膜之上时，观察到岛状薄膜的吸收光谱发生了显著的红移。钙钛矿薄膜在岛状薄膜表面的发光强度和寿命取决于激发光的波长。研究结果表明，SIF不仅有望用于增强基于钙钛矿的光发射二极管的光强，还能延长钙钛矿中载流子的寿命，从而可能提升钙钛矿太阳能电池的光伏性能。