The high photoluminescence quantum yield, wide color tunability and narrow bandwidth of perovskite nanocrystals make them favorable for light source and display applications. Here, highly transparent green‐light‐emitting devices (LEDs) using inorganic cesium lead halide perovskite nanocrystal films as the emissive layer are reported. The effect of multilayered nanostructured transparent electrode on optical properties and performance within the LEDs is investigated by fine tuning layer thickness. The results show that the light transmission in visible region can be enhanced with this nanostructured film. These LEDs exhibited a high transmittance (average 73% over 400–700 nm) and high brightness of 2640 and 1572 cd m⁻² for indium‐doped tin oxide (ITO) cathode and MoO_x/Au/MoO_x anode sides, respectively.

中文翻译：

---

用于高度透明钙钛矿发光器件的微调多层透明电极

钙钛矿纳米晶体的高光致发光量子产率，宽的颜色可调性和窄的带宽使其非常适合于光源和显示应用。在此，报道了使用无机卤化铯铅钙钛矿纳米晶体膜作为发射层的高度透明的绿色发光器件（LED）。通过微调层厚度研究了多层纳米结构透明电极对LED内光学性能和性能的影响。结果表明，该纳米结构膜可以提高可见光区域的透光率。这些LED表现出高透射率（在400-700 nm范围内平均73％），对于掺铟的氧化锡（ITO）阴极和MoO _x / Au / MoO而言，亮度高达2640和1572 cd m ^-2。分别为_x个阳极面。