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Technology

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 High Temperature Easy Recyclable Glass Structure      Outdoor & Indoor use

Photo Anode

Porous thin film of TiO_2 nanoparticles printed on conductive glass substrate.

1
Glass
2
Conductive film - SnO2(F)
3
Titanium + Dye
4
Liquid electrolyte
Sensitizer

Dye molecules adsorption on the porous structure of the titanium Nanoxide.

1
Glass
2
Conductive film - SnO2(F)
3
Titanium + Dye
Electrolyte

Iodine based Redox couple used as electrolyte solution.

1
Glass
2
Conductive film - SnO2(F)
3
Titanium + Dye
4
Liquid electrolyte
Catalyser

Transparent Pt-Catalyst printed on the conductive glass.

1
Glass
2
Conductive film - SnO2(F)
3
Titanium + Dye
4
Liquid electrolyte
5
Catalyst­ - Platinum
6
Conductive film - SnO2(F)
7
Glass
Counter electrode

Transparent conductive glass as counter electrode.

1
Glass
2
Conductive film - SnO2(F)
3
Titanium + Dye
4
Liquid electrolyte
5
Catalyst­ - Platinum
6
Conductive film - SnO2(F)
7
Glass
8
Light
Artificial photosynthesis

Incident light on the counter electrode side. g2e’s modules are bifacial.

1
Glass
2
Conductive film - SnO2(F)
3
Titanium + Dye
4
Liquid electrolyte
5
Catalyst­ - Platinum
6
Conductive film - SnO2(F)
7
Glass
8
Light
Bifacial function

Incident light, reflected light and finally the light, which is transformed to electrical energy.

1
Glass
2
Conductive film - SnO2(F)
3
Titanium + Dye
4
Liquid electrolyte
5
Catalyst­ - Platinum
6
Conductive film - SnO2(F)
7
Glass
8
Light
Electrical chemical reactions

This is what happens on the surface of TiO2, microscopic view.

1
Glass
2
Conductive film - SnO2(F)
3
Titanium + Dye
4
Liquid electrolyte
5
Catalyst­ - Platinum
6
Conductive film - SnO2(F)
7
Glass
8
Light
And there was light!
1
Glass
2
Conductive film - SnO2(F)
3
Titanium + Dye
4
Liquid electrolyte
5
Catalyst­ - Platinum
6
Conductive film - SnO2(F)
7
Glass
8
Light
And there was light!
1
Glass
2
Conductive film - SnO2(F)
3
Titanium + Dye
4
Liquid electrolyte
5
Catalyst­ - Platinum
6
Conductive film - SnO2(F)
7
Glass
8
Light

Our technology

The technology of dye sensitized solar cells is often referred to as artificial photosynthesis, analogous to chlorophyll in leaves, where a sensitized dye absorbs light and generates excited electrons. These electrons are injected into and transported via the conduction band of a high surface area semiconductor. These cells are thin film devices that use a nanocrystalline carrier layer made of titanium dioxide (TiO2) whose surface is chemically bonded with a monolayer of light-absorbing dye molecules. A small amount of gel electrolyte is used for the transport of the carriers.

The technology, developed by EPFL (Prof M. Grätzel), has been matured after 20 years of development and 17 licences distributed worldwide by EPFL. So far, stability of DSC were hindered by poor polymer sealing. Recently, we have been able to develop an industrial process for reliable glass sealing of DSC.

The company is actually working with newly acquired industrial equipment on scaling up the production of large size panels.

Photosynthesis experience