Dependence of hysteresis on the perovskite film thickness: inverse behavior between TiO2 and PCBM in a normal planar structure

2018 ◽  
Vol 6 (37) ◽  
pp. 18206-18215 ◽  
Author(s):  
An-Na Cho ◽  
In-Hyuk Jang ◽  
Ja-Young Seo ◽  
Nam-Gyu Park

The effect of perovskite film thickness on the current density (J)–voltage (V) hysteresis is investigated with a normal planar perovskite solar cell (PSC) having the FTO/ETL/MAPbI3/spiro-MeOTAD/Au structure (ETL = electron transporting layer, MA = methylammonium, and spiro-MeOTAD = 2,2′,7,7′-tetrakis-(N,N-di-4-methoxyphenylamino)-9,9′-spirobifluorene).

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Alireza Tooghi ◽  
Davood Fathi ◽  
Mehdi Eskandari

Abstract In this paper, a nanostructured perovskite solar cell (PSC) on a textured silicon substrate is examined, and its performance is analyzed. First, its configuration and the simulated unit cell are discussed, and its fabrication method is explained. In this proposed structure, poly-dimethylsiloxane (PDMS) is used instead of glass. It is shown that the use of PDMS dramatically reduces the reflection from the cell surface. Furthermore, the light absorption is found to be greatly increased due to the light trapping and plasmonic enhancement of the electric field in the active layer. Then, three different structures, are compared with the main proposed structure in terms of absorption, considering the imperfect fabrication conditions and the characteristics of the built PSC. The findings show that in the worst fabrication conditions considered structure (FCCS), short-circuit current density (Jsc) is 22.28 mA/cm2, which is 27% higher than that of the planar structure with a value of 17.51 mA/cm2. As a result, the efficiencies of these FCCSs are significant as well. In the main proposed structure, the power conversion efficiency (PCE) is observed to be improved by 32%, from 13.86% for the planar structure to 18.29%.


2017 ◽  
Vol 5 (47) ◽  
pp. 24790-24803 ◽  
Author(s):  
Kwang-Ho Jung ◽  
Ja-Young Seo ◽  
Seonhee Lee ◽  
Hyunjung Shin ◽  
Nam-Gyu Park

A hysteresis-free and high-efficiency planar perovskite solar cell was developed using a solution-processed SnO2electron-transporting layer (ETL).


Nano Research ◽  
2020 ◽  
Vol 13 (4) ◽  
pp. 1156-1161 ◽  
Author(s):  
Sucheol Ju ◽  
Minseop Byun ◽  
Minjin Kim ◽  
Junho Jun ◽  
Daihong Huh ◽  
...  

2014 ◽  
Vol 906 ◽  
pp. 55-59
Author(s):  
Fei Yang ◽  
Li Feng Liu ◽  
Xu Wang ◽  
Jin Feng Kang

A composite TiO2 photoelectrode structure is explored to optimize the dye-sensitized solar cell (DSSC) properties. The composite TiO2 photoanodes consist of two nanoparticular TiO2 layers with different size and thickness. The impact of film thickness on the performance of DSSCs was also investigated. In the optimized composite photoelectrode structure with large sized TiO2 nanoparticle as light scattering layer, the significantly improved performance of DSSC with 25% increase of current density and 13.1% increase of conversion efficiency was experimentally demonstrated.


2016 ◽  
Vol 4 (48) ◽  
pp. 18852-18856 ◽  
Author(s):  
Yunlong Guo ◽  
Wataru Sato ◽  
Kento Inoue ◽  
Weifeng Zhang ◽  
Gui Yu ◽  
...  

n-Type doping of a polymeric electron-transporting layer in a perovskite solar cell doubles the performance of the device.


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