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Stefan Guldin

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The self-assembly of soft matter, such as block copolymers or colloids, allows fine tuning of structure formation on the 10 - 500 nm length scale and therefore enables the design of materials with tunable optical response. We present strategies on how to e ...

Spie-Int Soc Optical Engineering2014

Solid-state dye-sensitized solar cells offer the possibility of high power conversion efficiencies due to few fundamental losses in dye regeneration. Despite continuous progress, limitations in charge diffusion through the mesoporous photoanode are still p ...

2013

Low-cost antireflection coatings (ARCs) on large optical surfaces are an ingredient-technology for high-performance solar cells. While nanoporous thin films that meet the zero-reflectance conditions on transparent substrates can be cheaply manufactured, th ...

2013

Conducting mesoporous TiO2 is rapidly gaining importance for green energy applications. To optimise performance, its porosity and crystallinity must be carefully fine-tuned. To this end, we have performed a detailed study on the temperature dependence of T ...

Royal Soc Chemistry2013

A simple strategy is presented to determine the pore-filling fraction of the hole-conductor 2,2-7,7-tetrakis-N,N-di-pmethoxyphenylamine-9,9-spirobifluorene (spiro-OMeTAD) into mesoporous photoanodes in solid-state dye-sensitized solar cells (ss-DSCs). Base ...

Wiley-Blackwell2012

Dye-Sensitized Solar Cell Based on a Three-Dimensional Photonic Crystal

Nicolas Tétreault, Stefan Guldin

We present a material assembly route for the manufacture of dye-sensitized solar cells, coupling a high-surface mesoporous layer to a three-dimensional photonic crystal (PC) Material synthesis aided by self-assembly on two length scales provided electrical ...

American Chemical Society2010

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We present a material and device based study on the fabrication of mesoporous TiO2 and its integration into dye-sensitized solar cells. Poly(isoprene-block-ethyleneoxide) (PI-b-PEO) copolymers were used as structure directing agents for the sol–gel based s ...

2010

Although in principle very promising, photovoltaic technology has so far failed to deliver robust high efficiency modules at affordable prices. Despite considerable research, high efficiency silicon based cells remain expensive, while the more recent organ ...

IEE2009