Rougher interfaces may increase efficiency of next-generation solar cells
In simulations and experiments, researchers demonstrate that introducing tiny nanoscale texturing on the surfaces of materials in perovskite/silicon tandem solar cells can significantly increase efficiency by reducing the amount of light energy that is lost due to reflection. A new nanotextured design can achieve a power conversion efficiency potential above 29%, which simulations suggest could be further improved with better fabrication techniques and additional texturing.
Newspaleti 
In simulations and experiments, researchers demonstrate that introducing tiny nanoscale texturing on the surfaces of materials in perovskite/silicon tandem solar cells can significantly increase efficiency by reducing the amount of light energy that is lost due to reflection. A new nanotextured design can achieve a power conversion efficiency potential above 29%, which simulations suggest could be further improved with better fabrication techniques and additional texturing.
