Molecular Photovoltaics and the Rise of Perovskite Solar Cells
Michael Graetzel a
a Microcity, Ecole Polytechnique Federale de Lausanne (EPFL), Rue de la Maladière, Neuchâtel, Switzerland
Keynote, Michael Graetzel, presentation 023
DOI: https://doi.org/10.29363/nanoge.nipho.2023.023
Publication date: 3rd April 2023

Photovoltaic cells using molecular dyes, semiconductor quantum dots or perovskite pigments
as light harvesters have emerged as credible contenders to conventional devices. Dye sensitized
solar cells (DSCs) use a three-dimensional nanostructured junction for photovoltaic electricity
production and reach currently a power conversion efficiency (PCE) of over 15 % in full
sunlight. They possess unique practical advantages in particular highly effective electricity
production from ambient light, ease of manufacturing, flexibility and transparency, bifacial
light harvesting, and aesthetic appeal, which have fostered industrial production and
commercial applications. DSCs served as a launch pad for perovskite solar cells (PSCs) which
are presently being intensively investigated as one of the most promising future PV
technologies, the PCE of solution processed laboratory cells having currently reached 25.7%.
Present research focusses on their scale up to as well as on ascertaining their long-term
operational stability. My lecture will cover our most recent findings in these revolutionary
photovoltaic domains

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