GOTSolar

A novel avenue to high-performance, stable perovskite solar cells

GOTSolar's EPFL researchers from Michael Grätzel's lab show how stable, scalable, and efficient perovskite solar cells can be produced through molecular engineering of multifunctional molecular modulators and using solid-state nuclear magnetic resonance to investigate their role in double-cation pure-iodide perovskites. Published in Nature Communications.

A press release about this piece of research has been published by the EPFL MEDIACOM. Full text is available here: https://news.epfl.ch/news/a-novel-avenue-to-high-performance-stable-perovski/

 

Solar cells research at LPI EPFL. Photo: Piotr Krupiński

New film about our project!

The goals of GOTSolar and ways we are on to achieve them have now been described in a short movie. Grant executors from UPORTO and EFACEC tell the story behind their involvement in perovskite photovoltaics.

 

Power of mechanochemistry: A new multicomponent perovskite

Scientists working within GOTSolar have demonstrated a perovskite cell, in which a relatively large guanidinium cation was incorporated into the crystal structure of perovskite using solventless mechanochemical approach. Guanidinium perovskites contain less volatile amines and are more resistant to external factors than the parent perovskite. The higher durability of the photovoltaic cells is a considerable argument in favour of their commercialization.

A press release about this piece of research has been published by the IChF PAN. Full text is available here: http://ichf.edu.pl/press/2018/05/IChF180517a_EN.pdf

 

GOTSolar featured by Euronews

The research of GOTSolar has been featured in Euronews. The short film shows the work on the preparation of perovskite solar cells. The topic is presented by the GOTSolar executors from EPFL Lausanne, University of Porto, and GreatcellSolar.

Interview with Professor Adélio Mendes in Expresso – a leading journal of Portugal

In the article Prof. Mendes, the coordinator of the GOTSolar project, describes the history of his scientific path, which finally lead to his interest in perovskite solar cells. We learn that the cooperation, which has now resulted in GOTSolar project started a few years ago between his group from the University of Porto and now non-existing company DyeSol. The text presents Prof. Mendes' view on science and the word, but also describes some more unusual facts of his career such as patenting a new methodology of making alcohol-free beer.

Expresso is one of the most renowned Portugese weekly publications in Portugal with history reaching 1973, and circulation of ca. 100 000 copies. A weekly newspaper, it incorporates various supplements, covering general news, business, sports, international news, entertainment, society, a magazine, recruitment and real estate classified supplements, as well as having a site on the Internet. It is particularly known for its editorial independence and its probing political reporting, making it a newspaper of reference.

Full article in Portugese is available here.

Mechanochemistry paves the way to higher quality perovskite photovoltaics

Scientists working within GOTSolar has demonstrated a perovskite cell with a significantly smaller number of structural defects. The unexpected improvement of the photovoltaic performance was observed when perovskites produced by mechanochemistry were used for the construction of a typical photovoltaic cell.

A press release about this piece of research has been published by the IChF PAN. Full text is available here: https://www.eurekalert.org/pub_releases/2017-11/iopc-mpt110717.php

 

Playing with solar energy at IChF PAN. Photo: Grzegorz Krzyżewski/IChF PAN

Record stability for perovskite solar cells, efficiency over 20%!

Scientists working within GOTSolar have greatly improved the operational stability of perovskite solar cells by introducing cuprous thiocyanate protected by a thin layer of reduced graphene oxide. Devices lost less than 5% performance when subjected to a crucial accelerated aging test during which they were exposed for more than 1000 hours to full sunlight at 60°C.

A press release about this piece of research has been published by the EPFL MEDIACOM. Full text is available here: https://actu.epfl.ch/news/record-stability-for-perovskite-solar-cells-effici/

 

Solar cells research at LPI EPFL. Photo: Piotr Krupiński

Solubilizing the Insoluble: News of the Day in Polish Press Agency

A press release about our research has been published by the Polish Press Agency (PAP) and featured as “topic of the day” of the PAP’s science section. The text describes the work done by Anna Cieślak (IChF PAN)

GOTSolar featured in Future and Emerging Technologies (FET) Newsletter

Our results attracted the attention of the European Community officials, which resulted in an article in EC's Future and Emerging Technologies (FET) Newsletter artcle.

The project is already achieving exciting results, as for instance, polymer-coated cells that maintained 95% of their initial performance at 85°C for 500 hours under full solar illumination and maximum power point tracking. Also, in low-temperature laser-assisted sealing, a process for sealing conductive glasses at temperatures of 120ºC has been fully optimized to a size of 100 cm2; its hermeticity and long-term stability have been successfully tested against MIL-STD-883 and IEC-64646 standards respectively.

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GOTSolar in the Newsletter of Portuguese Promotional Office of the Framework Programmes

The GOTSolar project has been chosen among hundreds of projects to spearhead the Newsletter of the Portuguese Promotional Office of the Framework Programme for RTD.