基于银纳米颗粒等离激元共振和耦合效应的彩色透明显示屏

A Full-color transparent display screen based on plasmon resonance and coupling effect of silver nanoparticles

提出一种基于银纳米颗粒等离激元共振和耦合效应的彩色透明显示屏。对银颗粒优化设计,说明在红、绿、蓝三波段能够出现三个散射峰,可用于增强彩色显示性能;接下来,通过溶液热法制备出该屏幕;经投影仪对屏投影测试发现确实具有彩色、高透、高亮和宽视角。另外,研究发现在等离激元共振及耦合作用下,银颗粒在红、绿、蓝三个共振位置均具有偶极子的远场散射形貌,充分解释了显示屏高亮和宽视角的原因。提出的透明显示屏具有透明度和亮度高、观察视角宽、制备工艺简单、成本低等特点,在透明显示领域将有大的应用潜力。

A novel full-color transparent display screen based on the plasmon resonance and coupling effect of silver nanoparticles is proposed.Firstly,it shows that the optimized silver particles can support three scattering peaks respectively in the red,green and blue wavebands,which can be used to enhance the performance of full-color transparent display.Secondly,It experimentally demonstrates that,through a simple solution thermal method,the optimized silver nanoparticles can be embedded in the transparent matrix material to form a transparent display screen.The projector-toscreen projection test further proves that this screen indeed presents the full-color display with high transparency,high brightness and wide viewing angle.In addition,It also demonstrates that the silver nanoparticles have the dipole-type farfield scattering patterns at the three resonance wavelengths of red,green and blue due to the plasmon resonance and coupling effect,which well explains the reasons of the display screen with high brightness and wide viewing angle.The transparent display screen proposed r with the characteristics of high transparency and brightness,wide viewing angle,simple preparation process and low cost,will have potential applications in the field of transparent display.