Publication

Photoelectric conversion device

Michael Graetzel, Shaik Mohammed Zakeeruddin, Peng Wang
2003
Patents

Abstract

Photoelectric conversion device (1) comprising semiconductor electrode (15) having semiconductor layer (7) carrying a sensitizing dye, counter electrode (9) arranged opposite to the semiconductor electrode (15) and electrolyte layer (13) arranged between the semiconductor electrode (15) and the counter electrode (9), wherein the electrolyte layer (13) contains a compound having in its molecule a nitrogen atom with unshared electron pair and an iodide (I3) whose concentration is in the range of 0.06 to 6 mol/dm. This photoelectric conversion device enables maintaining excellent conversion efficiency for a prolonged period of time.

Official source

https://infoscience.epfl.ch/entities/publication/74a36654-67da-4b92-bd19-b606a49d7b94

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Michael Graetzel, Shaik Mohammed Zakeeruddin, Peng Wang
2003
Patents

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/74a36654-67da-4b92-bd19-b606a49d7b94

About this result

Related concepts (32)

Semiconductor device

A semiconductor device is an electronic component that relies on the electronic properties of a semiconductor material (primarily silicon, germanium, and gallium arsenide, as well as organic semiconductors) for its function. Its conductivity lies between conductors and insulators. Semiconductor devices have replaced vacuum tubes in most applications. They conduct electric current in the solid state, rather than as free electrons across a vacuum (typically liberated by thermionic emission) or as free electrons and ions through an ionized gas.

Doping (semiconductor)

In semiconductor production, doping is the intentional introduction of impurities into an intrinsic semiconductor for the purpose of modulating its electrical, optical and structural properties. The doped material is referred to as an extrinsic semiconductor. Small numbers of dopant atoms can change the ability of a semiconductor to conduct electricity. When on the order of one dopant atom is added per 100 million atoms, the doping is said to be low or light.

Electrode

An electrode is an electrical conductor used to make contact with a nonmetallic part of a circuit (e.g. a semiconductor, an electrolyte, a vacuum or air). Electrodes are essential parts of batteries that can consist of a variety of materials depending on the type of battery. The electrophore, invented by Johan Wilcke, was an early version of an electrode used to study static electricity. Electrodes are an essential part of any battery. The first electrochemical battery made was devised by Alessandro Volta and was aptly named the Voltaic cell.

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