In this study, we examined the fine structure of the compound eyes of a household fly and precisely replicated its entire structure using a low-temperature atomic layer deposition technique. The surface of the fly eye is found to be covered by highly packed protuberances, which potentially increases visual efficiency through increased photon capture for a given stimulus. The alumina replica was...

UNLABELLED Molybdenum oxide (MoO3) is one of most suitable antireflection (AR) layers for silicon/poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (Si/ PEDOT PSS) hybrid solar cells due to its well-matched refractive index (2.1). A simulation model was employed to predict the optical characteristics of Si/ PEDOT PSS hybrid solar cells with the MoO3 layers as antireflection coatings (...

The successful development of multijunction photovoltaic devices with four or more subcells has placed additional importance on the design of high-quality broadband antireflection coatings. Antireflective nanostructures have shown promise for reducing reflection loss compared to the best thin-film interference coatings. However, material constraints make nanostructures difficult to integrate wi...

Investigation and development of the post-growth technology for fabricatingmulti-junction photovoltaic converters based on GaInP/GaInAs/Geheterostructure has been carried out. Antireflection coating, ohmiccontacts mesa-structure forming stages have reviewed. Thetechnology n + -GaAs contact layer etching with help ofplasma-chemical, liquid ion-beam investigated. coefficient radiation from hetero...

Abstract Antireflection coatings are an interesting challenge for multijunction solar cells due to their broadband spectrum absorption and the requirement of current matching each subcell. A new design cell antireflection is presented in this work which alternative high low index materials used minimize reflection a (300–1800 nm). We compared short circuit density high-low refractive stacks des...

High-performance photovoltaic cells use semiconductors to convert sunlight into clean electrical power, and transparent dielectrics or conductive oxides as antireflection coatings. A common feature of these materials is their high refractive index. Whereas high-index materials in a planar form tend to produce a strong, undesired reflection of sunlight, high-index nanostructures afford new ways ...

Single-layer antireflection coatings on absorbing substrates for the parallel and perpendicular polarizations at oblique incidence," Appl. Explicit equations are derived that determine the refractive index of a single layer that suppresses the reflection of p-or s-polarized light from the planar interface between a transparent and an absorbing medium at any given angle of incidence. The require...

Broadband antireflection and field emission characteristics of silicon nanopillars (Si-NPs) fabricated by self-masking dry etching in hydrogen-containing plasma were systematically investigated. In particular, the effects of ultrathin (5-20 nm) titanium nitride (TiN) films deposited on Si-NPs by atomic layer deposition (ALD) on the optoelectronic properties were explored. The results showed tha...

A highly ordered and damage-free microscale Ge inverted pyramid array is fabricated by HF-free metal-assisted chemical etching. The exhibits significant broadband antireflection properties in the mid-infrared region.

Herein, eco-friendly natural acids inspired by nature, namely, acetic acid, formic lactic and citric acid on their capability of functioning as a p-dopant for the carbon nanotube transparent electrode in silicon-based planar heterojunction solar cells, are tested. From result, shows multifunctional effect p-doping with excellent doping stability well antireflection. The its investigated diverse...