Colored solar modules using integrated pixelated resonant dielectric nanoscatterer arrays

Green colored photovoltaic modules based on silicon heterojunction solar cells integrated with periodic arrays of light scattering Si nanoscatterers were made. Here, we expand this concept to multiple colors and color combinations. We show that random arrays of silicon nanoarrays can be combined to pixels to create the desired color. By...

Efficient colored silicon solar modules using integrated resonant dielectric nanoscatterers

We demonstrate photovoltaic modules with a bright green color based on silicon heterojunction solar cells integrated with arrays of light scattering dielectric nanoscatterers. Dense arrays of crystalline silicon nanocylinders, 100-120 nm wide, 240 nm tall, 325 nm pitch, are made onto module cover slides using substrate-conformal soft-imprint...

Photovoltaic materials: present efficiencies and future challenges

Recent developments in photovoltaic materials have led to continual improvements in their efficiency. We review the electrical characteristics of 16 widely studied geometries of photovoltaic materials with efficiencies of 10 to 29%. Comparison of these characteristics to the fundamental limits based on the Shockley-Queisser detailed-balance...

Limiting light escape angle in silicon photovoltaics: ideal and realistic cells

Restricting the light escape angle within a solar cell significantly enhances light trapping, resulting in potentially higher efficiency in thinner cells. Using an improved detailed balance model for silicon and neglecting diffuse light, we calculate an efficiency gain of 3%abs for an ideal Si cell of 3-µm thickness and the escape angle...

Effect of EVA encapsulation on antireflection properties of Mie nanoscatterers for c-Si solar cells

Dielectric nanoparticle arrays have been proposed as antireflection coatings and light-trapping schemes for thin-film c- Si solar cells. However, practical aspects about the integration of these nanostructures with solar modules have yet to be investigated. In this paper, we study the effect of ethylene vinyl acetate (EVA) encapsulation on the...

Plasmonic light-trapping in a-Si:H solar cells by front-side Ag nanoparticle arrays: A benchmarking study

A series of (n-i-p) a-Si:H solar cells with light-trapping by front-side plasmonic Ag nonoparticle arrays was compared to a reference without the plasmonic arrays as well as to a benchmark with a conventional textured back-side reflector for light-trapping. The external quantum efficiency of the solar cells was determined experimentally by...

Mode coupling by plasmonic surface scatterers in thin-film silicon solar cells

We demonstrate effective mode coupling by light scattering from periodic Ag nanoparticle arrays printed onto a completed thin-film a-Si:H solar cell. Current-voltage measurements show a photocurrent enhancement of 10% compared to a flat reference cell with a standard antireflection coating. External quantum efficiency measurements for the...

Zonnestroom komt steeds dichterbij

De aarde ontvangt per uur meer energie van de zon dan wij met de hele wereldbevolking per jaar nodig hebben. Zonnestroom is daarom een bron van duurzame energie met een enorm potentieel. De afgelopen tijd is de sector in een stroomversnelling geraakt, met een gemiddelde jaarlijkse groei van ongeveer 40 procent. Maar er zit nog meer aan te komen....

Levensduur en erfelijkheid

Geografische en confessionele invloeden bij de huwelijkskeuze in Nederland

Over Consanguine Huwelijken in Nederland

Ontwikkeling en huidige stand van de sterfte in Nederland en Belgie

Zuigelingensterfte in Nederland, Belgie en Luxemburg