Publication

Hole transport material for electrochemical or optoelectronic devices

Michael Graetzel, Mohammad Khaja Nazeeruddin, Kasparas Rakstys
2016
Patents

Abstract

ES 2575511 A1 20160629 • The present invention relates to novel compds., methods of prepg. the compds. and uses of the compds. as hole transport materials in optoelectronic devices or electrochem., and methods of producing devices.

Official source

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Michael Graetzel, Mohammad Khaja Nazeeruddin, Kasparas Rakstys
2016
Patents

Abstract

Official source

Related concepts (15)

Electrochemistry

Electrochemistry is the branch of physical chemistry concerned with the relationship between electrical potential difference, as a measurable and quantitative phenomenon, and identifiable chemical change, with the potential difference as an outcome of a particular chemical change, or vice versa. These reactions involve electrons moving via an electronically-conducting phase (typically an external electrical circuit, but not necessarily, as in electroless plating) between electrodes separated by an ionically conducting and electronically insulating electrolyte (or ionic species in a solution).

Electron mobility

In solid-state physics, the electron mobility characterises how quickly an electron can move through a metal or semiconductor when pulled by an electric field. There is an analogous quantity for holes, called hole mobility. The term carrier mobility refers in general to both electron and hole mobility. Electron and hole mobility are special cases of electrical mobility of charged particles in a fluid under an applied electric field. When an electric field E is applied across a piece of material, the electrons respond by moving with an average velocity called the drift velocity, .

Semiconductor

A semiconductor is a material which has an electrical conductivity value falling between that of a conductor, such as copper, and an insulator, such as glass. Its resistivity falls as its temperature rises; metals behave in the opposite way. Its conducting properties may be altered in useful ways by introducing impurities ("doping") into the crystal structure. When two differently doped regions exist in the same crystal, a semiconductor junction is created.

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Hole transport material for electrochemical or optoelectronic devices

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