Publication

A new terpyridine cobalt complex redox shuttle for dye-sensitized solar cells

Mohammad Khaja Nazeeruddin, Filippo de Angelis, Gabriele Marotta
2013
Journal Articles

Abstract

A new cobalt-terpyridine redox shuttle (Co(Cl-phenyl-terpyridine)(2)) has been synthesized, characterized, computationally investigated and then tested in photovoltaic devices, in conjunction with the prototypical N719 and Z907 ruthenium dyes. Lower efficiencies compared to the reference Co(bpy)(3) redox couple were obtained, probably due to increased recombination processes. Improvements in the devices performances were obtained by using chenodeoxycholic acid as surface co-adsorbent and as an electrolyte additive. Moreover, to better rationalize the photovoltaic results, the effect of two different counterions (TFSI and PF6) has been investigated for the reference Co(bpy)(3) electrolyte, finding a reduced efficiency for the TFSI-based electrolyte. (C) 2013 Elsevier B.V. All rights reserved.

Official source

https://infoscience.epfl.ch/entities/publication/3ff9b25c-5e17-4b5e-8c72-6398d143e3e9

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Mohammad Khaja Nazeeruddin, Filippo de Angelis, Gabriele Marotta
2013
Journal Articles

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/3ff9b25c-5e17-4b5e-8c72-6398d143e3e9

About this result

Ontological neighbourhood

Energy engineering

Solar power: Topics in solar power

Related concepts (22)

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.

Photovoltaic system

A photovoltaic system, also PV system or solar power system, is an electric power system designed to supply usable solar power by means of photovoltaics. It consists of an arrangement of several components, including solar panels to absorb and convert sunlight into electricity, a solar inverter to convert the output from direct to alternating current, as well as mounting, cabling, and other electrical accessories to set up a working system. It may also use a solar tracking system to improve the system's overall performance and include an integrated battery.

Photovoltaics

Photovoltaics (PV) is the conversion of light into electricity using semiconducting materials that exhibit the photovoltaic effect, a phenomenon studied in physics, photochemistry, and electrochemistry. The photovoltaic effect is commercially used for electricity generation and as photosensors. A photovoltaic system employs solar modules, each comprising a number of solar cells, which generate electrical power. PV installations may be ground-mounted, rooftop-mounted, wall-mounted or floating.

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