Multifunctional RbCl dopants for efficient inverted planar perovskite solar cell with ultra-high fill factor, negligible hysteresis and improved stability

Nano Energy ◽  
2018 ◽  
Vol 53 ◽  
pp. 567-578 ◽  
Author(s):  
Xixia Liu ◽  
Bichen Li ◽  
Nengduo Zhang ◽  
Zhimeng Yu ◽  
Kuan Sun ◽  
...  
2021 ◽  
Author(s):  
Atul kumar

Abstract Fill factor (FF) deficit and stability is a primary concern with the perovskite solar cell. Resistance values and band alignment at junction interface in perovskite are causing low fill factor. Moisture sensitivity of methylammonium lead halide perovskite is causing a stability issue. We tried to solve these issues by using inorganic hole transport layer (HTL). FF is sensitive to the band offset values. We study the band alignment/band offset effect at the Perovskite /HTL junction. Inorganic material replacing Spiro-MeOTAD can enhance the stability of the device by providing an insulation from ambient. Our simulation study shows that the earth abundant p-type chalcogenide materials of SnS as HTL in perovskite is comparable to Spiro-MeOTAD efficiency.


2020 ◽  
Vol 32 (12) ◽  
pp. 3219-3226
Author(s):  
Deepika Gaur ◽  
Sunita Sharma ◽  
S.K. Ghoshal ◽  
Pooja Seth ◽  
Shruti Aggarwal ◽  
...  

This article reports the influence of titania (TiO2) and TiO2-graphene (TGr) as electron transport layer (ETL) on the performance of polyethylene oxide (PEO) based perovskite solar cell (PSC). Compared to most commonly used ETLs, graphene based ETLs showed immense promise towards scalable fabrication and higher carrier injection of PSC. Driven by this idea, PEO layer was introduced in TiO2 and TGr based PSC to inspect the feasibility of achieving notably high fill factor. As-grown nanocomposites were analyzed using varied analytical tools to determine the effect of graphene inclusion on their morphology, optical and electrical properties. An increase in the absorption bandwidth and red-shift in the absorption peak was observed from UV-VIS spectra indicating band gap narrowing. By exploiting TGr nanocomposite in perovskite solar cells as electron collection layer, a remarkable fill factor of 44% has been achieved. In short, present disclosure may contribute towards the development of ETL in high performing PEO based perovskite solar cell (PSC).


2019 ◽  
Vol 7 (19) ◽  
pp. 5646-5651 ◽  
Author(s):  
Bingbing Chen ◽  
Hongwei Hu ◽  
Teddy Salim ◽  
Yeng Ming Lam

This work discusses how the behaviour of the fill factor (FF) of devices calculated from current–voltage (I–V) measurements at different light intensities can be used as a basis to assess the trap density of methylammonium lead triiodide (MAPbI3) solar cells.


2011 ◽  
Vol 95 (7) ◽  
pp. 1587-1589 ◽  
Author(s):  
B. Zimmermann ◽  
H.-F. Schleiermacher ◽  
M. Niggemann ◽  
U. Würfel

2018 ◽  
Vol 3 (5) ◽  
pp. 717-722 ◽  
Author(s):  
Mohammad Mahdi Tavakoli ◽  
Rouhollah Tavakoli ◽  
Daniel Prochowicz ◽  
Pankaj Yadav ◽  
Michael Saliba

The improvement of the quality of the hole transporting layer (HTL) plays a key role in the fabrication of highly efficient and stable perovskite solar cells (PSCs).


2019 ◽  
Vol 87 (1) ◽  
pp. 10101 ◽  
Author(s):  
Davoud Jalalian ◽  
Abbas Ghadimi ◽  
Azadeh Kiani

In this study, a lead-free nontoxic and hole transport material (HTM)-free perovskite solar cell (PSC) with a novel configuration of glass/FTO/ZnO/CH3NH3SnI3−xBrx/back contact has been modeled and optimized by a solar cell capacitance simulator (SCAPS). The bandgap of CH3NH3SnI3−xBrx absorber is tuned in the range of 1.3 eV to 2.15 eV by variation of the Br doping content. To make a comparison, an optimized Pb-based PSC is also modeled. By optimizing the parameters, power conversion efficiency (PCE) of 16.30%, open circuit voltage (Voc) of 1.02 V, short circuit current density (Jsc) of 22.23 mA/cm2, and fill factor (FF) of 0.72 were obtained. As compare to the reports available in the literature, these results show much improvement and can provide guidelines for production of economic and environmentally friendly PSCs with further efficiency enhancement.


2015 ◽  
Vol 3 (20) ◽  
pp. 10681-10686 ◽  
Author(s):  
Alberto Martínez-Otero ◽  
Quan Liu ◽  
Paola Mantilla-Perez ◽  
Miguel Montes Bajo ◽  
Jordi Martorell

Herein we report a thin and robust interconnecting layer for polymer tandem solar cells where a high fill factor is achieved.


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