Superior broadband antireflection from buried Mie resonator arrays for high-efficiency photovoltaics.

ABSTRACT: Establishing reliable and efficient antireflection structures is of crucial importance for realizing high-performance optoelectronic devices such as solar cells. In this study, we provide a design guideline for buried Mie resonator arrays, which is composed of silicon nanostructures atop a silicon substrate and buried by a dielectric film, to attain a superior antireflection effect over a broadband spectral range by gaining entirely new discoveries of their antireflection behaviors. We find that the buried Mie resonator arrays mainly play a role as a transparent antireflection structure and their antireflection effect is insensitive to the nanostructure height when higher than 150 nm, which are of prominent significance for photovoltaic applications in the reduction of photoexcited carrier

SUBMITTER: Zhong S 

PROVIDER: S-EPMC4352919 | biostudies-literature | 2015 Mar

REPOSITORIES: biostudies-literature