Nanostructured thin films for anti-reflection applications

Investigation of TiO2 Thin Film Deposited by Microwave Plasma Assisted Sputtering and Its Application in 3D Glasses

“…The rough surface also needs to be considered as a new layer consisting of a mixture of air and material (film or substrate). For example, Chen and Sun reported anti-reflection effect of nanostructured surface [25]. Effective Medium Approximation (EMA) was used to model the mixture layer of a rough surface and the Bruggeman model of EMA [26] is shown, Equation 9.…”

Dynamic Interferometry Lithography on a TiO2Photoresist Sol-Gel for Diffracting Deflector Module

“…Micro-or nanostructuring for light-trapping and antireflect coatings has been studied during the last decade in order to increase solar cell and photovoltaic (PV) module efficiency. A large part of these works is dedicated to decrease reflection at the multiple interfaces of the PV module: most of these structures involve submicrometric patterns, such as diffraction gratings [1][2][3][4][5]. Other structures have been placed under the solar cell in order to reflect the light passing through the cell [6,7].…”

Large-area omnidirectional antireflection coating on low-index materials

“…Inhomogeneous antireflection coatings can provide greater flexibility in effective refractive indices but often require the use of challenging nanofabrication processes. These have included top-down approaches such as selfmasked dry etching [7], wet etching [8][9][10][11], electron beam lithography [12], interference lithography [13,14], and rollto-roll nanoimprinting [15]; and bottom-up approaches, such as anodic alumina oxide nanoporous films [16,17], nanosphere lithography (NSL) [18], and carbon nanotubes [19]. In nearly all cases, minimizing surface reflectivity for normally incident light has been emphasized.…”