Publication

ABAB Phthalocyanines: Scaffolds for Building Unprecedented Donor-π-Acceptor Chromophores

Michael Graetzel
2017
Journal Articles

Abstract

Unique donor-π-acceptor phthalocyanines have been synthesized through the asym. functionalization of an ABAB phthalocyanine, crosswise functionalized with two iodine atoms through Pd-catalyzed cross-coupling reactions with adequate electron-donor and electron-acceptor moieties. These push-pull mols. have been optically and electrochem. characterized, and their ability to perform as chromophores for dye-sensitized solar cells has been tested.

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https://infoscience.epfl.ch/entities/publication/cec41caf-9665-4a54-8f01-e7c23533078c

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Michael Graetzel
2017
Journal Articles

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/cec41caf-9665-4a54-8f01-e7c23533078c

About this result

Related concepts (15)

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.

Thin-film solar cell

Thin-film solar cells are made by depositing one or more thin layers (thin films or TFs) of photovoltaic material onto a substrate, such as glass, plastic or metal. Thin-film solar cells are typically a few nanometers (nm) to a few microns (μm) thick–much thinner than the wafers used in conventional crystalline silicon (c-Si) based solar cells, which can be up to 200 μm thick. Thin-film solar cells are commercially used in several technologies, including cadmium telluride (CdTe), copper indium gallium diselenide (CIGS), and amorphous thin-film silicon (a-Si, TF-Si).

Hybrid solar cell

Hybrid solar cells combine advantages of both organic and inorganic semiconductors. Hybrid photovoltaics have organic materials that consist of conjugated polymers that absorb light as the donor and transport holes. Inorganic materials in hybrid cells are used as the acceptor and electron transporter in the structure. The hybrid photovoltaic devices have a potential for not only low-cost by roll-to-roll processing but also for scalable solar power conversion. Solar cells are devices that convert sunlight into electricity by the photovoltaic effect.

Related publications (28)

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2024

ABAB Phthalocyanines: Scaffolds for Building Unprecedented Donor-​π-​Acceptor Chromophores

Durable Perovskite Solar Cells with 24.5% Average Efficiency: The Role of Rigid Conjugated Core in Molecular Semiconductors

Enhanced performance of perovskite solar cell via up-conversion YLiF4:Yb, Er nanoparticles

Photo-doping of spiro-OMeTAD for highly stable and efficient perovskite solar cells

Durable Perovskite Solar Cells with 24.5% Average Efficiency: The Role of Rigid Conjugated Core in Molecular Semiconductors

Enhanced performance of perovskite solar cell via up-conversion YLiF4:Yb, Er nanoparticles

Photo-doping of spiro-OMeTAD for highly stable and efficient perovskite solar cells

ABAB Phthalocyanines: Scaffolds for Building Unprecedented Donor-π-Acceptor Chromophores