Premium
Porous Nanomaterials for Ultrabroadband Omnidirectional Anti‐Reflection Surfaces with Applications in High Concentration Photovoltaics
Author(s) -
Yao Yuan,
Lee KyuTae,
Sheng Xing,
Batara Nicolas A.,
Hong Nina,
He Junwen,
Xu Lu,
Hussain Muhammad M.,
Atwater Harry A.,
Lewis Nathan S.,
Nuzzo Ralph G.,
Rogers John A.
Publication year - 2017
Publication title -
advanced energy materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 10.08
H-Index - 220
eISSN - 1614-6840
pISSN - 1614-6832
DOI - 10.1002/aenm.201601992
Subject(s) - materials science , photovoltaics , nanoporous , microscale chemistry , optoelectronics , nanomaterials , transmittance , nanotechnology , optics , lithography , photovoltaic system , ecology , mathematics education , mathematics , physics , biology
Materials for nanoporous coatings that exploit optimized chemistries and self‐assembly processes offer capabilities to reach ≈98% transmission efficiency and negligible scattering losses over the broad wavelength range of the solar spectrum from 350 nm to 1.5 µm, on both flat and curved glass substrates. These nanomaterial anti‐reflection coatings also offer wide acceptance angles, up to ±40°, for both s‐ and p‐polarization states of incident light. Carefully controlled bilayer films have allowed for the fabrication of dual‐sided, gradient index profiles on plano‐convex lens elements. In concentration photovoltaics platforms, the resultant enhancements in the photovoltaics efficiencies are ≈8%, as defined by experimental measurements on systems that use microscale triple‐junction solar cells. These materials and their applications in technologies that require control over interface reflections have the potential for broad utility in imaging systems, photolithography, light‐emitting diodes, and display technologies.