Improving Photovoltaic Stability and Performance of Perovskite Solar Cells by Molecular Interface Engineering

2018 ◽  
Vol 123 (2) ◽  
pp. 1219-1225 ◽  
Author(s):  
Linan Meng ◽  
Fan Zhang ◽  
Wei Ma ◽  
Yu Zhao ◽  
Peng Zhao ◽  
...  
2020 ◽  
Author(s):  
Manuel Salado ◽  
Michael Andresini ◽  
Peng Huang ◽  
Mohd Taukeer Khan ◽  
Fulvio Ciriaco ◽  
...  

<p>Interface engineering has become one of the facile and effective approach to improve solar cells performance, its long-term stability and retard unwanted side reaction. We have developed three passivating agents which can functionalize the surface and induce hydrophobicity by employing substituted thiazolium iodide (TMI) for perovskite solar cells fabrication. The role of TMI interfacial layers on microstructure and electro-optical properties was assessed for structural as well as transient absorption (TA) measurements. TMI treatment resulted into <i>V</i><sub>OC</sub> and FF enhancement by reducing possible recombination paths at perovskite/HTM interface and by reducing the shallow as well as deep traps. These in turn allowed to achieve higher performance as compared to the pristine surface. Additionally, TMI passivated perovskite layer reduces considerably CH<sub>3</sub>NH<sub>3</sub><sup>+</sup> thermal diffusion and degradation induced by humidity. The un-encapsulated perovskite solar cells employing TMI exhibited a remarkable stability under moisture levels (~50% RH) retaining ~95% of initial PCE after 800 h of fabrication, paving potential scalable endeavour. </p>


2020 ◽  
Vol 30 (14) ◽  
pp. 1910561 ◽  
Author(s):  
Manuel Salado ◽  
Michael Andresini ◽  
Peng Huang ◽  
Mohd Taukeer Khan ◽  
Fulvio Ciriaco ◽  
...  

2020 ◽  
Author(s):  
Manuel Salado ◽  
Michael Andresini ◽  
Peng Huang ◽  
Mohd Taukeer Khan ◽  
Fulvio Ciriaco ◽  
...  

<p>Interface engineering has become one of the facile and effective approach to improve solar cells performance, its long-term stability and retard unwanted side reaction. We have developed three passivating agents which can functionalize the surface and induce hydrophobicity by employing substituted thiazolium iodide (TMI) for perovskite solar cells fabrication. The role of TMI interfacial layers on microstructure and electro-optical properties was assessed for structural as well as transient absorption (TA) measurements. TMI treatment resulted into <i>V</i><sub>OC</sub> and FF enhancement by reducing possible recombination paths at perovskite/HTM interface and by reducing the shallow as well as deep traps. These in turn allowed to achieve higher performance as compared to the pristine surface. Additionally, TMI passivated perovskite layer reduces considerably CH<sub>3</sub>NH<sub>3</sub><sup>+</sup> thermal diffusion and degradation induced by humidity. The un-encapsulated perovskite solar cells employing TMI exhibited a remarkable stability under moisture levels (~50% RH) retaining ~95% of initial PCE after 800 h of fabrication, paving potential scalable endeavour. </p>


2018 ◽  
Vol 28 (51) ◽  
pp. 1804603 ◽  
Author(s):  
Dan Chi ◽  
Shihua Huang ◽  
Meiying Zhang ◽  
Shaiqiang Mu ◽  
Yang Zhao ◽  
...  

ChemPhysChem ◽  
2017 ◽  
Vol 18 (20) ◽  
pp. 2939-2946 ◽  
Author(s):  
Xiao Ma ◽  
Peng Tang ◽  
Dong Liu ◽  
Jingquan Zhang ◽  
Lianghuan Feng ◽  
...  

Science ◽  
2014 ◽  
Vol 345 (6196) ◽  
pp. 542-546 ◽  
Author(s):  
H. Zhou ◽  
Q. Chen ◽  
G. Li ◽  
S. Luo ◽  
T.-b. Song ◽  
...  

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