scholarly journals Can slow-moving ions explain hysteresis in the current–voltage curves of perovskite solar cells?

2016 ◽  
Vol 9 (4) ◽  
pp. 1476-1485 ◽  
Author(s):  
Giles Richardson ◽  
Simon E. J. O'Kane ◽  
Ralf G. Niemann ◽  
Timo A. Peltola ◽  
Jamie M. Foster ◽  
...  
Keyword(s):  
Solar Cells ◽  
Charge Transport ◽  
Transport Model ◽  
Perovskite Solar Cells ◽  
Ion Migration ◽  
Measured Current ◽  
Current Voltage ◽  
Slow Moving ◽  
Current Voltage Characteristics ◽  
A Charge

We have developed a charge transport model that explicitly accounts for ion migration. This model has been used to interpret measured current–voltage characteristics that show hysteresis.

Stabilization of Intrinsic Ions in Perovskite Solar Cells by Employment of a Bipolar Star-Shaped Organic Molecule as a Charge Transport Buffer

2020 ◽  
Vol 3 (11) ◽  
pp. 10632-10641
Author(s):  
Wei-Wei Zuo ◽  
Meng Li ◽  
Wan-Sheng Zong ◽  
Shen-Gang Xu ◽  
Ying-Liang Liu ◽  
...  
Keyword(s):  
Solar Cells ◽  
Charge Transport ◽  
Organic Molecule ◽  
Perovskite Solar Cells ◽  
A Charge ◽  
Transport Buffer

Effect of Halide ion migration on current-voltage hysteresis in CH3NH3PbI3-xClx based perovskite solar cells

2017 ◽  
Author(s):  
Bernard Geffroy ◽  
Heejae Lee ◽  
Sofia Gaiaschi ◽  
Patrick Chapon ◽  
Arthur Marronnier ◽  
...  
Keyword(s):  
Solar Cells ◽  
Perovskite Solar Cells ◽  
Ion Migration ◽  
Current Voltage ◽  
Voltage Hysteresis

scholarly journals Assessing mobile ions contributions to admittance spectra and current-voltage characteristics of 3D and 2D/3D perovskite solar cells

2020 ◽  
Vol 215 ◽  
pp. 110670
Author(s):  
Ali Sehpar Shikoh ◽  
Sanghyun Paek ◽  
Alexander Y. Polyakov ◽  
Nikolai B. Smirnov ◽  
Ivan V. Shchemerov ◽  
...  
Keyword(s):  
Solar Cells ◽  
Perovskite Solar Cells ◽  
Current Voltage ◽  
Current Voltage Characteristics ◽  
Mobile Ions

scholarly journals A Physics-Based Analytical Model for Current–Voltage Characteristics of Perovskite Solar Cells Incorporating Bulk Recombination

Energies ◽  
2021 ◽  
Vol 14 (13) ◽  
pp. 3868
Author(s):  
M. Zahangir Kabir
Keyword(s):  
Solar Cells ◽  
Charge Carrier ◽  
Power Conversion Efficiency ◽  
Analytical Model ◽  
Conversion Efficiency ◽  
Carrier Transport ◽  
Power Conversion ◽  
Perovskite Solar Cells ◽  
Current Voltage ◽  
Current Voltage Characteristics

A physics-based compact analytical model for studying the current–voltage characteristics of perovskite solar cells has been proposed by considering the external voltage-dependent carrier transport, exponential photon absorption, and bulk charge carrier recombination. The explicit analytical expressions for both the forward dark and photocurrents in perovskite solar cells are derived. The current in the external circuit is calculated considering the actual solar spectrum. The mathematical models are verified and useful physical parameters are extracted by comparing the model calculations with the published experimental results on various perovskite solar cells. The proposed model shows excellent agreement with the experimental results. The power conversion efficiency can be improved further by enhancing the carrier transport in the perovskite layer. The improvement in charge carrier transport enhances the fill factor and hence the power conversion efficiency.

scholarly journals Foam-like 3D Graphene as a Charge Transport Modifier in Zinc Oxide Electron Transport Material in Perovskite Solar Cells

Photochem ◽  
2021 ◽  
Vol 1 (3) ◽  
pp. 523-536
Author(s):  
Mohamed Salleh Mohamed Saheed ◽  
Norani Muti Mohamed ◽  
Balbir Singh Mahinder Singh ◽  
Qamar Wali ◽  
Mohamed Shuaib Mohamed Saheed ◽  
...  
Keyword(s):  
Solar Cells ◽  
Electron Transport ◽  
Charge Transport ◽  
Electrochemical Impedance ◽  
Perovskite Solar Cells ◽  
Precursor Solution ◽  
Photocurrent Density ◽  
Transport Parameters ◽  
3D Graphene ◽  
A Charge

The effect of foam-like 3D graphene (3DG) in an electron transport material (ETM), viz. ZnO thin film, on the steady-state photoluminescence (PL), light-harvesting efficiency (LHE), photocurrent density (JSC), photovoltage (VOC), and charge transport parameters of perovskite solar cells (PSCs) are systematically investigated. The ETM is developed by spin coating a ZnO precursor solution containing varying amounts of 3DG on conducting glass substrates and appropriate annealing. A significant improvement in the photoconversion efficiency of PSCs is observed for a low concentration of 3DG in ZnO. The current–voltage and electrochemical impedance spectroscopy measurements show that the addition of 3DG enhances the VOC due to efficient electron–hole separation and charge transport compared to the pristine ZnO. These studies offer a route for further advances in enhancing the optoelectronic properties of ETM for artificial photosynthesis and photocatalysis devices.

Ion Migration in Triple-Cation Mixed-Halide Perovskite Solar Cells with Potassium Passivation

2019 ◽  
Author(s):  
Moritz Futscher ◽  
Lucie McGovern ◽  
Kangyu Ji ◽  
Sandy Sanchez ◽  
Sam Stranks ◽  
...  
Keyword(s):  
Solar Cells ◽  
Perovskite Solar Cells ◽  
Ion Migration ◽  
Halide Perovskite
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