Large-area periodic lead halide perovskite nanostructures for lenticular printing laser displays

Lenticular printing technique provides a promising way to realize stereoscopic displays, especially, when microscopic optical structures are integrated into light-emitting materials/devices. Here, we fabricated large-area periodic structures with a spatial resolution at a wavelength scale from hybrid perovskite materials via a space-confined solution growth method. It takes advantages of both high refractive index contrast and high luminescence brightness, which allows the optical modulation on not only the reflection of illumination, but also the light emission from hybrid perovskites. The distributed feedback within these periodic structures significantly improves the degree of polarization and directionality of laser actions while their threshold is also reduced. These findings enable us to present a prototype of lenticular printing laser displays that vary emission colors at different view angles, which may find applications in creating high-resolution and high-contrast holographical images.

Automated summary

Lenticular printing technique utilizing hybrid perovskite materials can achieve optical modulation in both reflection and light emission, while improving the degree of polarization and directionality in laser actions. This enables the creation of prototype laser displays that vary emission colors at different view angles, potentially useful for high-resolution and high-contrast holographical images.