scholarly journals Equivalent circuit representation of hysteresis in solar cells that considers interface charge accumulation: Potential cause of hysteresis in perovskite solar cells

2016 ◽  
Vol 109 (3) ◽  
pp. 033905 ◽  
Author(s):  
Kazuhiko Seki
Keyword(s):  
Solar Cells ◽  
Equivalent Circuit ◽  
Perovskite Solar Cells ◽  
Charge Accumulation ◽  
Interface Charge ◽  
Accumulation Potential ◽  
Circuit Representation

Interface charge accumulation dynamics in 3D and quasi-2D perovskite solar cells

2020 ◽  
Vol 54 (1) ◽  
pp. 014004
Author(s):  
Guilin Liu ◽  
Ning Zhou ◽  
Shunquan Tan ◽  
Juchen Zhang ◽  
Qi Chen ◽  
...  
Keyword(s):  
Solar Cells ◽  
Perovskite Solar Cells ◽  
Charge Accumulation ◽  
Interface Charge

scholarly journals Mechanisms of charge accumulation in the dark operation of perovskite solar cells

2016 ◽  
Vol 18 (22) ◽  
pp. 14970-14975 ◽  
Author(s):  
Teresa S. Ripolles ◽  
Ajay K. Baranwal ◽  
Koji Nishinaka ◽  
Yuhei Ogomi ◽  
Germà Garcia-Belmonte ◽  
...  
Keyword(s):  
Solar Cells ◽  
Dark Current ◽  
Forward Bias ◽  
Perovskite Solar Cells ◽  
Charge Accumulation ◽  
Current Voltage

In this work, a new current peak at forward bias in the dark current–voltage curves has been identified for standard mesoscopic perovskite solar cells.

scholarly journals Elucidating the Impact of Charge Selective Contact in Halide Perovskite Through Impedance Spectroscopy

2019 ◽  
Author(s):  
Mohd Taukeer Khan ◽  
Manuel Salado ◽  
Abdullah R. D. Almohammedi ◽  
Samrana Kazim ◽  
Shahzada Ahmad
Keyword(s):  
Solar Cells ◽  
Impedance Spectroscopy ◽  
Charge Carrier ◽  
Carrier Mobility ◽  
Short Circuit ◽  
Perovskite Solar Cells ◽  
Charge Carrier Mobility ◽  
Charge Accumulation ◽  
Frequency Dependent ◽  
The Impact

<p>The electron and hole selective contact (SC) play a pivotal role in the performance of perovskite solar cells. In order to separate the interfacial phenomenon from bulk, the influence of charge SC was elucidated, by means of impedance spectroscopy. The specific role played by TiO<sub>2</sub> and <i>Spiro-OMeTAD</i> as electron and hole SC in perovskite solar cells was investigated at short circuit condition at different temperatures. We have probed MAPbI<sub>3</sub> and (FAPbI<sub>3</sub>)<sub>0.85</sub>(MAPbBr<sub>3</sub>)<sub>0.15 </sub>and elucidated parameters such as charge carrier mobility, recombination resistance, time constant and charge carrier kinetics in perovskite layer and at the interface of perovskite/SC. Charge carrier mobility in mixed perovskite was found to be nearly two order of magnitude higher as compared to MAPbI<sub>3</sub>. Moreover, the carrier mobility in devices with only electron SC was found to be higher as compared only hole SC. The charge accumulation at TiO<sub>2</sub>/perovskite/<i>Spiro</i>-OMeTAD interfaces were studied via frequency dependent capacitance, revealing higher charge accumulation at perovskite/S<i>piro</i>-OMeTAD than at TiO<sub>2</sub>/perovskite interface. By performing varying temperature frequency dependent capacitance measurements the distribution of density of state within the bandgap of the perovskites, the emission rate of electrons from the trap states and traps activation energy was determined. </p>

Correlating hysteresis phenomena with interfacial charge accumulation in perovskite solar cells

2020 ◽  
Vol 22 (1) ◽  
pp. 245-251 ◽  
Author(s):  
Tianyang Chen ◽  
Zhe Sun ◽  
Mao Liang ◽  
Song Xue
Keyword(s):  
Solar Cells ◽  
Charge Exchange ◽  
Perovskite Solar Cells ◽  
Exchange Model ◽  
Diffusion Equations ◽  
Charge Accumulation ◽  
Drift Diffusion ◽  
Charge Extraction ◽  
Interfacial Charge ◽  
Hysteresis Phenomena

A generalized charge exchange model is introduced into drift–diffusion equations for modeling the charge extraction in perovskite solar cells.

scholarly journals The effect of hole transporting layer in charge accumulation properties of p-i-n perovskite solar cells

APL Materials ◽  
2017 ◽  
Vol 5 (7) ◽  
pp. 076102 ◽  
Author(s):  
Fedros Galatopoulos ◽  
Achilleas Savva ◽  
Ioannis T. Papadas ◽  
Stelios A. Choulis
Keyword(s):  
Solar Cells ◽  
Perovskite Solar Cells ◽  
Charge Accumulation ◽  
Hole Transporting
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