Temperature influence in the perovskite solar cell operation
Isabel Mesquita a, Luísa Andrade a, Adélio Mendes a
a LEPABE- Faculdade de Engenharia, Universidade do Porto, Rua Doutor Roberto Frias, Porto, 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
Oral, Isabel Mesquita, presentation 074
DOI: https://doi.org/10.29363/nanoge.abxpvperopto.2018.074
Publication date: 11th December 2017

Perovskite solar cells (PSC) have emerged as a new family of photovoltaic devices and a surprising power conversion efficiency increase from 3.8 % to 22.7 % was reached in only few years [1]. This type of solar cells is a very promising alternative to conventional photovoltaic panels that use harmful chemicals and complex purification processes [2]. Although the astonishing power conversion efficiency evolution, these cells present some practical drawbacks as instability when submitted to high temperatures [3].

The temperature effect on triple cation perovskite solar cells during operation is studied within this work; the cells were prepared according to [4]. IV and EIS analyses were conducted in a temperature range from -5 to 80 °C with help of a peltier element for temperature control. To prevent the influence of ambient humidity during measurements, the cells were sealed with Kapton® as main sealing and high temperature epoxy as edge sealing. The sealing was successfully achieved since the performance of the cells before and after sealing was maintain. Electrochemical, morphological and structural analyses of the aged devices were also performed through EIS, SEM and XRD for assessing the effect of the temperature stress.

At temperatures below 22 °C the performance of the cells showed to remain stable. Nevertheless, at higher temperatures (T > 40°C), the performance of the tested cells decreased irreversibly with temperature. These results will be presented and the contribution of each layer for the deactivation will be discussed along with the proposed corresponding deactivation mechanism.

 

[1]          National Renewable Energy Laboratory. Available from: www.nrel.gov [December, 2017].

[2]          Mulvaney D. Hazardous Materials Used In Silicon PV Cell Production: A Primer. Solar Industry. September 2013.

[3]          Malinauskas T, Tomkute-Luksiene D, Sens R, Daskeviciene M, Send R, Wonneberger H, et al. Enhancing Thermal Stability and Lifetime of Solid-State Dye-Sensitized Solar Cells via Molecular Engineering of the Hole-Transporting Material Spiro-OMeTAD. ACS Applied Materials & Interfaces. 2015;7(21):11107-16.

[4]          Saliba M, Matsui T, Seo J-Y, Domanski K, Correa-Baena J-P, Nazeeruddin MK, et al. Cesium-containing triple cation perovskite solar cells: improved stability, reproducibility and high efficiency. Energy & Environmental Science. 2016;9(6):1989-97.

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