An Investigation into Electric Field-Modulated Photoluminescence of Perovskite solar cells

MRS Advances ◽  
2017 ◽  
Vol 2 (53) ◽  
pp. 3099-3104
Author(s):  
Zhihua Xu
Keyword(s):  
Solar Cells ◽  
Electric Field ◽  
Perovskite Solar Cells ◽  
Internal Electric Field ◽  
Ion Migration ◽  
Migration Mechanism ◽  
Halide Perovskites ◽  
Mobile Ions ◽  
Voltage Scanning

ABSTRACTElectric field-modulated photoluminescence (PL) of perovskite solar cells is investigated to gain deeper insight about the role of the mobile ions in organometal halide perovskites. The PL intensity of perovskite solar cells show significant dependence on the polarity of the external electric field and the voltage scanning direction. This phenomenon is discussed in the framework of an ion migration mechanism, which has been widely accounted for the current density-voltage (J-V) hysteresis in perovskite solar cells. The result suggests that the mobile ions not only change the internal electric field of perovskite solar cells, but also have an effect on the recombination of photogenerated charge carriers.

scholarly journals Pathways toWards 30% Efficient Single‐Junction Perovskite Solar Cells and the Role of Mobile Ions

Solar RRL ◽  
2021 ◽  
Author(s):  
Jonas Diekmann ◽  
Pietro Caprioglio ◽  
Moritz H. Futscher ◽  
Vincent M. Le Corre ◽  
Sebastian Reichert ◽  
...  
Keyword(s):  
Solar Cells ◽  
Perovskite Solar Cells ◽  
Single Junction ◽  
Mobile Ions

Crucial role of charge transporting layers on ion migration in perovskite solar cells

2020 ◽  
Vol 47 ◽  
pp. 132-137 ◽  
Author(s):  
Abasi Abudulimu ◽  
Lang Liu ◽  
Guilin Liu ◽  
Nijiati Aimaiti ◽  
Bohuslav Rezek ◽  
...  
Keyword(s):  
Solar Cells ◽  
Crucial Role ◽  
Perovskite Solar Cells ◽  
Ion Migration

scholarly journals Quantification of ion migration in CH3NH3PbI3 perovskite solar cells by transient capacitance measurements

2019 ◽  
Vol 6 (7) ◽  
pp. 1497-1503 ◽  
Author(s):  
Moritz H. Futscher ◽  
Ju Min Lee ◽  
Lucie McGovern ◽  
Loreta A. Muscarella ◽  
Tianyi Wang ◽  
...  
Keyword(s):  
Activation Energy ◽  
Solar Cells ◽  
Perovskite Solar Cells ◽  
Energy Concentration ◽  
Ion Migration ◽  
Capacitance Measurements ◽  
Ion Drift ◽  
Transient Capacitance ◽  
Mobile Ions ◽  
And Diffusion

We quantify activation energy, concentration, and diffusion coefficient of mobile ions in MAPbI3 perovskite solar cells using transient ion-drift measurements.

scholarly journals Evaluation of Active Layer Thickness Influence in Long-Term Stability and Degradation Mechanisms in CsFAPbIBr Perovskite Solar Cells

2021 ◽  
Vol 11 (24) ◽  
pp. 11668
Author(s):  
Mari Carmen López-González ◽  
Gonzalo del Pozo ◽  
Diego Martín-Martín ◽  
Laura Muñoz-Díaz ◽  
José Carlos Pérez-Martínez ◽  
...  
Keyword(s):  
Solar Cells ◽  
Electric Field ◽  
Layer Thickness ◽  
Active Layer ◽  
Perovskite Solar Cells ◽  
Low Frequency ◽  
Strong Increase ◽  
Active Layer Thickness ◽  
Internal Electric Field ◽  
Ion Density

Perovskite solar cells (PSCs) have become very popular due to the high efficiencies achieved. Nevertheless, one of the main challenges for their commercialization is to solve their instability issues. A thorough understanding of the processes taking place in the device is key for the development of this technology. Herein, J-V measurements have been performed to characterize PSCs with different active layer thicknesses. The solar cells’ parameters in pristine devices show no significant dependence on the active layer thickness. However, the evolution of the solar cells’ efficiency under ISOS-L1 protocol reveals a dramatic burn-in degradation, more pronounced for thicker devices. Samples were also characterized using impedance spectroscopy (IS) at different degradation stages, and data were fitted to a three RC/RCPE circuit. The low frequency capacitance in the thickest samples suffers a strong increase with time, which suggests a significant growth in the mobile ion population. This increase in the ion density partially screens the electric field, which yields a reduction in the extracted current and, consequently, the efficiency. This paper has been validated with two-dimensional numerical simulations that corroborate (i) the decrease in the internal electric field in dark conditions in 650 nm devices, and (ii) the consequent reduction in the carrier drift and, therefore, of the effective current extraction and efficiency.

scholarly journals Ion Migration and the Role of Preconditioning Cycles in the Stabilization of theJ-VCharacteristics of Inverted Hybrid Perovskite Solar Cells

2015 ◽  
Vol 6 (2) ◽  
pp. 1501453 ◽  
Author(s):  
Michele De Bastiani ◽  
Giorgio Dell'Erba ◽  
Marina Gandini ◽  
Valerio D'Innocenzo ◽  
Stefanie Neutzner ◽  
...  
Keyword(s):  
Solar Cells ◽  
Perovskite Solar Cells ◽  
Ion Migration ◽  
Hybrid Perovskite

scholarly journals Arylammonium-Assisted Reduction of the Open-Circuit Voltage Deficit in Wide-Bandgap Perovskite Solar Cells: The Role of Suppressed Ion Migration

2020 ◽  
Vol 5 (8) ◽  
pp. 2560-2568 ◽  
Author(s):  
Cong Chen ◽  
Zhaoning Song ◽  
Chuanxiao Xiao ◽  
Rasha A. Awni ◽  
Canglang Yao ◽  
...  
Keyword(s):  
Solar Cells ◽  
Open Circuit Voltage ◽  
Perovskite Solar Cells ◽  
Wide Bandgap ◽  
Open Circuit ◽  
Ion Migration

Critical Role of Grain Boundaries for Ion Migration in Formamidinium and Methylammonium Lead Halide Perovskite Solar Cells

2016 ◽  
Vol 6 (13) ◽  
pp. 1600330 ◽  
Author(s):  
Jae S. Yun ◽  
Jan Seidel ◽  
Jincheol Kim ◽  
Arman Mahboubi Soufiani ◽  
Shujuan Huang ◽  
...  
Keyword(s):  
Solar Cells ◽  
Grain Boundaries ◽  
Critical Role ◽  
Perovskite Solar Cells ◽  
Ion Migration ◽  
Halide Perovskite ◽  
Lead Halide

scholarly journals Bismuth Halide Perovskites for Photovoltaic Applications

2020 ◽  
Author(s):  
Khursheed Ahmad
Keyword(s):  
Solar Cells ◽  
Solar Cell ◽  
Perovskite Solar Cells ◽  
Energy Crisis ◽  
Photovoltaic Devices ◽  
Halide Perovskites ◽  
Halide Perovskite ◽  
Near Future

In the last decade, energy crisis has become the most important topic for researchers. Energy requirements have increased drastically. To overcome the issue of energy crisis in near future, numerous efforts and sources have been developed. Therefore, solar energy has been considered the most promising energy source compared to other energy sources. There were different kinds of photovoltaic devices developed, but perovskite solar cells have been considered the most efficient and promising solar cell. The perovskite solar cells were invented in 2009 and crossed an excellent power conversion efficiency of 25%. However, it has a few major drawbacks, such as the presence of highly toxic lead (Pb) and poor stability. Hence, numerous efforts were made toward the replacement of Pb and highly stable perovskite solar cells in the last few years. Bismuth halide perovskite solar cell is one type of the replacement introduced to overcome these issues. In this chapter, I have reviewed the role of bismuth halide perovskite structures and their optoelectronic properties toward the development of perovskite solar cells.

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