DOI: https://doi.org/10.29363/nanoge.stabpero.2020.004
Publication date: 31st May 2020
The thermal stability and identification of decomposition products of formamidinium organic based precursors and hybrid perovskite materials have been investigated under inert atmosphere at constant heating rate and pulsed heating steps under illumination/dark conditions.[1] As in the previous case studied for methylammonium based precursors and perovskites, the thermogravimetry technique coupled to quadrupole mass spectrometry allows to draw interesting insights about the thermal stability of these hybrid perovskite materials allowing forecasts towards their operational stability working as light harvester material in photovoltaic devices.
In this talk, we compare and review the different results obtained in four recent articles in the topic of decomposition products determination for formamidinium based perovskite paying special attention to the HCN release. We will discuss general tenets and beliefs misleading on the topic of stability of perovskite materials and finally, we will propose an operational stability test for perovskite solar cells without consensus.
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