New Advancements in Perovskite Solar Cells
Adélio Mendes a
a FEUP - Faculdade de Engenharia da Universidade do Porto, University of Porto, Rua Dr. Roberto Frias, Porto, 4200-465, Portugal
nanoGe Perovskite Conferences
Proceedings of International Conference on Perovskite Thin Film Photovoltaics, Photonics and Optoelectronics (ABXPV18PEROPTO)
Perovskite Thin Film Photovoltaics (ABXPV18). 27-28 Feb
Rennes, France, 2018 February 27th - March 1st
Organizer: Jacky Even
Invited Speaker, Adélio Mendes, presentation 087
DOI: https://doi.org/10.29363/nanoge.abxpvperopto.2018.087
Publication date: 11th December 2017

Perovskite solar cell (PSC) is a quite recent new thin-film PV technology, which promises to challenge a top place in the ranking of the PV technologies. A standard PSC cell is made of a TiO2 blocking layer – electron extracting layer – applied over a TCO glass substrate. Over this layer, a TiO2 mesoporous layer is applied, filled with an organic–inorganic halide perovskites. A hole extracting layer (otherwise known as hole transport material – HTM) of Spiro-OMeTAD covers the perovskite layer and over it, a counter-electrode of gold is applied.

GOTSolar project – FET-OPEN program no 687008 – begun in January 2016 aiming to improve the PSC efficiency and stability and to address the glass encapsulation using low temperature laser-assisted glass sealing approach, the development of a scalable embodiment and the challenge of decrease the lead content to meet the European relevant legislation.

The research project will soon initiate the third year of development and achieved already an astonish energy conversion efficiency of 21.6 % and a stability of 500 h @ 85 °C [1]; besides, new HTMs [2] and a new low temperature (≤ 120°C) laser-assisted glass sealing process were developed. A 10 × 10 cm2 displaying at least 8 % energy conversion efficiency with life expectancy of 20 years or more is expected by the end of the project.


References

[1] - Michael Saliba, Taisuke Matsui, Konrad Domanski, Ji-Youn Seo, Amita Ummadisingu, Shaik M. Zakeeruddin, Juan-Pablo Correa-Baena, Wolfgang R. Tress, Antonio Abate, Anders Hagfeldt, Michael Grätzel, "Incorporation of rubidium cations into perovskite solar cells improves photovoltaic performance", Science, 2016.

[2] - Neha Arora, M. Ibrahim Dar, Alexander Hinderhofer, Norman Pellet, Frank Schreiber, Shaik Mohammed Zakeeruddin, Michael Grätzel, "Perovskite solar cells with CuSCN hole extraction layers yield stabilized efficiencies >20%", Science, 2017.

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