Publication

Electrophoretically deposited titanium dioxide thin films for photovoltaic cells

Michael Graetzel, Andreas Kay
1994
Journal Articles

Abstract

A new technique for forming porous thin layers of nano -colloidal titanium dioxide on electronically conducting glass was developed. This technique uses constant-current electrophoretic deposition from a dispersion of Degussa P-25 titanium dioxide in 2-methoxyethanol followed by air-drying and annealing. Dye-sensitized TiO2 photovoltaic cells constructed with these films gave current-voltage characteristics comparable with those of films produced by other techniques. A 30 cm2 prototype photovoltaic cell was constructed with electrophoretically deposited TiO2, and tested. Measurement of the dark current and photocurrent enabled the calculation of the light current, and the effect of both the dark current and the series resistance on the cell performance was demonstrated.

Official source

https://infoscience.epfl.ch/entities/publication/4150c196-6964-43fe-b543-2a6accf581cf

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Michael Graetzel, Andreas Kay
1994
Journal Articles

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/4150c196-6964-43fe-b543-2a6accf581cf

About this result

Related concepts (32)

Solar cell

A solar cell, or photovoltaic cell, is an electronic device that converts the energy of light directly into electricity by the photovoltaic effect, which is a physical phenomenon. It is a form of photoelectric cell, defined as a device whose electrical characteristics, such as current, voltage, or resistance, vary when exposed to light. Individual solar cell devices are often the electrical building blocks of photovoltaic modules, known colloquially as solar panels.

Dye-sensitized solar cell

A dye-sensitized solar cell (DSSC, DSC, DYSC or Grätzel cell) is a low-cost solar cell belonging to the group of thin film solar cells. It is based on a semiconductor formed between a photo-sensitized anode and an electrolyte, a photoelectrochemical system. The modern version of a dye solar cell, also known as the Grätzel cell, was originally co-invented in 1988 by Brian O'Regan and Michael Grätzel at UC Berkeley and this work was later developed by the aforementioned scientists at the École Polytechnique Fédérale de Lausanne (EPFL) until the publication of the first high efficiency DSSC in 1991.

Organic solar cell

An organic solar cell (OSC) or plastic solar cell is a type of photovoltaic that uses organic electronics, a branch of electronics that deals with conductive organic polymers or small organic molecules, for light absorption and charge transport to produce electricity from sunlight by the photovoltaic effect. Most organic photovoltaic cells are polymer solar cells. The molecules used in organic solar cells are solution-processable at high throughput and are cheap, resulting in low production costs to fabricate a large volume.

Related publications (32)

Electrophoretically deposited titanium dioxide thin films for photovoltaic cells

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