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Publications associées (471)

Improving efficiency and stability of perovskite solar cells with photocurable fluoropolymers

Ulf Anders Hagfeldt, Juan-Pablo Correa-Baena

Organometal halide perovskite solar cells have demonstrated high conversion efficiency but poor long-term stability against ultraviolet irradiation and water. We show that rapid light-induced free-radical polymerization at ambient temperature produces mult ...

American Association for the Advancement of Science2016

Metal versus dielectric back reflector for thin-film Si solar cells with impact of front electrode surface texture

Franz-Josef Haug, Jan-Willem Alexander Schüttauf, Chunmin Zhang, Etienne Antoine Julien Moulin

Thin-film Si solar cells employ a back reflector (BR) for a more efficient use of the long wavelength light. Here, we have carried out a cross evaluation of metal (Ag-based) and dielectric (white paint-based) BR designs. Conclusive results have been reache ...

Wiley-Blackwell2016

Magnetically Driven Bi2O3/BiOCl-based Hybrid Microrobots for Photocatalytic Water Remediation

Mahmut Selman Sakar

In this work, we have developed 3D hybrid microstructures consisting of a short ferromagnetic CoNi segment for wireless magnetic control, coupled to a photocatalytic Bi2O3/BiOCl segment for water remediation under UV-visible light. These hybrid microstruct ...

Royal Society of Chemistry2015

Light trapping in hematite-coated transparent particles for solar fuel generation

Ali Dabirian

Hematite (alpha-Fe2O3), due to its abundance and low-cost, is an attractive compound for photoelectrochemical splitting of water to produce hydrogen. However, one major obstacle preventing hematite from achieving the target efficiencies comprises its signi ...

Royal Soc Chemistry2015

Bandgap Tunability in Sb-Alloyed BiVO4 Quaternary Oxides as Visible Light Absorbers for Solar Fuel Applications

Raffaella Buonsanti, Anna Loiudice

One approach to reducing the bandgap is the utilization of ternary and quaternary oxides, which have been receiving increased attention as light absorbers that, critically, also supply the potential needed to drive multi-electron oxidn. reactions. In this ...

2015

A unified framework for evaluating non-visual spectral effectiveness of ocular light exposure: key concepts

Marilyne Andersen, María Lovísa Ámundadóttir, Steven W. Lockley

The first evidence for a novel type of photoreceptor in humans was published in the form of an action spectrum for melatonin suppression. This action spectrum has very different spectral sensitivities compared to rod and cone photoreceptors. This discovery ...

2015

Transparent Organic Photodetector using a Near-Infrared Absorbing Cyanine Dye

Roland Hany, Hui Zhang

Organic photodetectors are interesting for low cost, large area optical sensing applications. Combining organic semiconductors with discrete absorption bands outside the visible wavelength range with transparent and conductive electrodes allows for the fab ...

Nature Publishing Group2015

CSMA/CA in Time and Frequency Domains

Patrick Thiran, Julien Pierre Sacha Herzen

It has recently been shown that flexible channelization, whereby wireless stations adapt their spectrum bands on a per-frame basis, is feasible in practice. In this paper, we propose TF-CSMA/CA, an algorithm for flexible channelization that schedules packe ...

IEEE2015

Gold nanoparticles: BSA (Bovine Serum Albumin) coating and X-ray irradiation produce variable-spectrum photoluminescence

Giorgio Margaritondo

We show that by using different x-ray irradiation times of BSA-coated Au nanoparticles (NPs) we can change their ultraviolet-stimulated photoluminescence and shift the spectral weight over the visible spectral range. This is due to the interplay of two emi ...

Elsevier Science Sa2015

Gold nanoparticles: BSA (Bovine Serum Albumin) coating and X-ray irradiation produce variable-spectrum photoluminescence

Giorgio Margaritondo, Lin Yang

2015

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