Could you please tell me the best reference article on charge transport of perovskite solar cell including the charge mobilities and recombination rates values as well?
Dear Wessam,
I am sure that you advanced much your understanding to the perovskite solar cells. However, i would like you to read my following short outline on the current conduction mechanisms in perovskite solar cells.
Charge separation in perovskite solar cells occurs by the built in electric field in the intrinsic perovskite layer. This built in electric field is due to the contact difference of potential between the electron and the hole transport layers. This is assuming that the metallic electrodes form ohmic contacts with the transport layers.
Therefore, the transport mechanism of the short circuit current in the perovskite solar cells is similar to the transport in the pin solar cells.
This is because the perovskites, on absorbing photons build excitons which are loosely bound like the metallic semiconductors for example silicon. Therefore, once generated they will be dissociated because of the thermal energy.
The diffusion length of the minority carries will be of the order of one micrometer depending on the quality of the perovskite material, which is sufficient to collect the photogenerated carriers in an equal thickness of the material.
The carrier transport layers conduct the the carriers by drift and so they require some voltage drop to conduct their current.
Therefore, their conductivity must be high enough to reduce their resistance.
Best wishes
You might wanna check this Science paper.
http://www.sciencemag.org/content/347/6221/519.full
Waseem,
This is an interesting question regarding a hot topic in solar cells. As this topic is interesting for me i found by searching the web some interesting work:
A phd work titled Modelling Charge Transport in Perovskite Solar Cells in the Link:http://www.findaphd.com/search/projectdetails.aspx?PJID=53288
and the paper titled A Physics-based Analytical Model for Perovskite Solar Cells in the link:http://arxiv.org/ftp/arxiv/papers/1505/1505.05132.pdf
Wish you success
HI,
You may want to check out this science article. Perovskite solar cells employing organic charge-transport layers
Hi,
You may want to check out our articles about charge transport and recombination in PVSK solar cells.
Good luck
Dear Wessam,
I am sure that you advanced much your understanding to the perovskite solar cells. However, i would like you to read my following short outline on the current conduction mechanisms in perovskite solar cells.
Charge separation in perovskite solar cells occurs by the built in electric field in the intrinsic perovskite layer. This built in electric field is due to the contact difference of potential between the electron and the hole transport layers. This is assuming that the metallic electrodes form ohmic contacts with the transport layers.
Therefore, the transport mechanism of the short circuit current in the perovskite solar cells is similar to the transport in the pin solar cells.
This is because the perovskites, on absorbing photons build excitons which are loosely bound like the metallic semiconductors for example silicon. Therefore, once generated they will be dissociated because of the thermal energy.
The diffusion length of the minority carries will be of the order of one micrometer depending on the quality of the perovskite material, which is sufficient to collect the photogenerated carriers in an equal thickness of the material.
The carrier transport layers conduct the the carriers by drift and so they require some voltage drop to conduct their current.
Therefore, their conductivity must be high enough to reduce their resistance.
Best wishes
@ Abdelhalim Zekry
is perovskite p-type material?
what are the majority and minority carriers?
@mohmmad Kaifi ... In my simulation model , perovskite is an intrinsic semiconductor with no impurity and we include Spiro-meTAAD and TiO2 as p and n type semiconductor to do charge transport within the semiconductor. At the end we have a photodiode of PIN configuration. Nowadays I knew some of the groups are working on doping the perovskite as well.
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