Long-Term Stability at High Temperatures for Birefringence in PAZO/PAH Layer-by-Layer Films

2012 ◽  
Vol 4 (3) ◽  
pp. 1470-1477 ◽  
Author(s):  
Quirina Ferreira ◽  
Paulo A. Ribeiro ◽  
Osvaldo N. Oliveira ◽  
Maria Raposo
Keyword(s):  
High Temperatures ◽  
Layer By Layer ◽  
Term Stability ◽  
Long Term Stability

Investigation of long term stability of arc-induced gratings heat treated at high temperatures

2010 ◽  
Author(s):  
Gaspar Rego ◽  
Paulo Caldas ◽  
Oleg Ivanov ◽  
José Luís Santos
Keyword(s):  
High Temperatures ◽  
Term Stability ◽  
Long Term Stability ◽  
Heat Treated

scholarly journals Long-Term Stability Analysis of 3D and 2D/3D Hybrid Perovskite Solar Cells Using Electrochemical Impedance Spectroscopy

Molecules ◽  
2020 ◽  
Vol 25 (24) ◽  
pp. 5794
Author(s):  
Sumayya M. Abdulrahim ◽  
Zubair Ahmad ◽  
Jolly Bhadra ◽  
Noora Jabor Al-Thani
Keyword(s):  
Solar Cells ◽  
Electrochemical Impedance Spectroscopy ◽  
Impedance Spectroscopy ◽  
Electrochemical Impedance ◽  
Perovskite Solar Cells ◽  
Layer By Layer ◽  
Term Stability ◽  
Long Term Stability ◽  
The Stability

Despite the remarkable progress in perovskite solar cells (PSCs), their instability and rapid degradation over time still restrict their commercialization. A 2D capping layer has been proved to overcome the stability issues; however, an in-depth understanding of the complex degradation processes over a prolonged time at PSC interfaces is crucial for improving their stability. In the current work, we investigated the stability of a triple cation 3D ([(FA0.83MA0.17)Cs0.05]Pb(I0.83Br0.17)3) and 2D/3D PSC fabricated by a layer-by-layer deposition technique (PEAI-based 2D layer over triple cation 3D perovskite) using a state-of-art characterization technique: electrochemical impedance spectroscopy (EIS). A long-term stability test over 24 months was performed on the 3D and 2D/3D PSCs with an initial PCE of 18.87% and 20.21%, respectively, to suggest a more practical scenario. The current-voltage (J-V) and EIS results showed degradation in both the solar cell types; however, a slower degradation rate was observed in 2D/3D PSCs. Finally, the quantitative analysis of the key EIS parameters affected by the degradation in 3D and 2D/3D PSCs were discussed.

Investigation of the long-term stability of arc-induced gratings heat treated at high temperatures

2011 ◽  
Vol 284 (1) ◽  
pp. 169-171 ◽  
Author(s):  
Gaspar Rego ◽  
Paulo Caldas ◽  
Oleg Ivanov ◽  
José Luís Santos
Keyword(s):  
High Temperatures ◽  
Term Stability ◽  
Long Term Stability ◽  
Heat Treated
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