Interface Engineering by Thiazolium Iodide Passivation Towards Reduced Thermal Diffusion and Performance Improvement in Perovskite Solar Cells

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>


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>


Solar RRL ◽  
2019 ◽  
Vol 3 (2) ◽  
pp. 1800292 ◽  
Author(s):  
Detao Liu ◽  
Yafei Wang ◽  
Hao Xu ◽  
Hualin Zheng ◽  
Ting Zhang ◽  
...  

2018 ◽  
Vol 123 (2) ◽  
pp. 1219-1225 ◽  
Author(s):  
Linan Meng ◽  
Fan Zhang ◽  
Wei Ma ◽  
Yu Zhao ◽  
Peng Zhao ◽  
...  

Author(s):  
Eun-Cheol Lee ◽  
Zhihai Liu

Recently, Ruddlesden–Popper two-dimensional (2D) perovskite solar cells (PSCs) have been intensively studied, owing to their high power conversion efficiency (PCE) and excellent long-term stability. In this work, we improved the...


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

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