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Artificial photosynthesis: biomimetic approaches to solar energy conversion and storage

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Solar Energy and Building Physics Laboratory - Activity Report 2009

Jean-Louis Scartezzini

The Solar Energy and Building Physics Laboratory (LESO-PB) works at the forefront of research and technological development in renewable energy, building science and urban physics. It is part of the Civil Engineering Institute (IIC) of the School of Archit ...

2010

Recent Advances in Sensitized Mesoscopic Solar Cells

Michael Graetzel

Perhaps the largest challenge for our global society is to find ways to replace the slowly but inevitably vanishing fossil fuel supplies by renewable resources and, at the same time, avoid negative effects from the current energy system on climate, environ ...

2009

Possibilities of reduction of the on-board energy for an innovative subway

Philippe Barrade

An innovative subway has been proposed using supercapacitors as energy source. In this paper, are presented different possibilities to reduce on-board stored energy in order to downsize the on-board energy storage subsystem. Special attention is paid to th ...

2009

Assessment of Solar Thermal Power Technologies

James Spelling

In the present climate of growing awareness about the dangers of global climate change, the development of new renewable energy technologies is primordial in the efforts to reduce emissions of carbon dioxide and other greenhouse gases. Rapid increases in t ...

2008

Solar photoelectrolysis of water with translucent nano-structured hematite photoanodes

Ilkay Cesar

In the context of the diminishing fossil energy resources and global warming, much research is focused on sustainable energy sources. The research that is presented in this thesis falls in this category as it contributes to the development of a device that ...

EPFL2007

The Advent of Mesoscopic Injection Solar Cells

Michael Graetzel

Mesoscopic injection solar cells operate in an entirely different fashion than conventional solar p‐n junction devices. Mimicking the principles that natural photosynthesis has used successfully over the last 3·5 billion years in solar energy conversion, t ...

2006

Mesoscopic thin films of hematite as photoanode for water photoelectrolysis

Alexis Joseph Duret

Due to the limiting amount of fossil fuel available and to the continuous growth of the world energy consumption, it becomes important to find alternative energy sources. Hydrogen produced by the photoelectrolysis of water is a perfect candidate as a clean ...

EPFL2005

Are dye-sensitized nano-structured solar cells stable? an overview of device testing and component analyses

Ulf Anders Hagfeldt

A review (71 refs.). The nano-structured dye-sensitized solar cell (DNSC) is considered as a promising technol. having the potential to significantly decrease the costs of solar energy. The breakthrough was achieved in 1991 with the demonstration of a DNSC ...

2004

Advanced Control Strategy for Solar Combisystems

Denis Gillet, Thierry Prud'Homme

Solar combisystems are solar heating installations providing space heating as well as domestic hot water for the inhabitants of the building. The energy sources are solar energy as well as an auxiliary source, gas or oil typically. This paper describes the ...

2002

Constrained random walks on random graphs: routing algorithms for large scale wireless sensor networks

Guillermo Barrenetxea Kobas

We consider a routing problem in the context of large scale networks with uncontrolled dynamics. A case of uncontrolled dynamics that has been studied extensively is that of mobile nodes, as this is typically the case in cellular and mobile ad-hoc networks ...

2002