Publication

Crystal defects mitigating agents for high power conversion efficiency and stability of perovskite photovoltaic devices

Michael Graetzel, Shaik Mohammed Zakeeruddin, Yuhang Liu, Mohammad Mahdi Tavakoli
2019
Patents

Abstract

This invention relates to an optoelectronic and/or photovoltaic device comprising acompound used as crystal defect mitigating agent or passivating agent, said compound beingselected from a compound of formula (I),a compound of formula (II),a mixture thereof, or a compound of formula (III) being selected from anyone of formulae(III.1), (III.2). (III.3), (IlI4) and (III.5) below.

Official source

https://infoscience.epfl.ch/entities/publication/ac60c2d1-19af-479f-9dfc-1d48f705b8fb

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Michael Graetzel, Shaik Mohammed Zakeeruddin, Yuhang Liu, Mohammad Mahdi Tavakoli
2019
Patents

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/ac60c2d1-19af-479f-9dfc-1d48f705b8fb

About this result

Related concepts (11)

Perovskite solar cell

A perovskite solar cell (PSC) is a type of solar cell that includes a perovskite-structured compound, most commonly a hybrid organic–inorganic lead or tin halide-based material as the light-harvesting active layer. Perovskite materials, such as methylammonium lead halides and all-inorganic cesium lead halide, are cheap to produce and simple to manufacture. Solar-cell efficiencies of laboratory-scale devices using these materials have increased from 3.8% in 2009 to 25.

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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.

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Building-integrated photovoltaics (BIPV) are photovoltaic materials that are used to replace conventional building materials in parts of the building envelope such as the roof, skylights, or facades. They are increasingly being incorporated into the construction of new buildings as a principal or ancillary source of electrical power, although existing buildings may be retrofitted with similar technology.

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