Scanning Electrochemical Microscope Studies of Charge Transfer Kinetics at the Interface of the Perovskite/Hole Transport Layer
Interfacial carrier transfer kinetics is critical to the efficiency and stability of perovskite solar cells. Herein, we measure the regeneration rate constant, absorption cross-section, reduction rate constant, and conductivity of hole transport layered perovskites using scanning electrochemical mic...
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| Format: | Article |
| Language: | English |
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Wiley
2023-01-01
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| Series: | Journal of Nanotechnology |
| Online Access: | http://dx.doi.org/10.1155/2023/1844719 |
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| author | Getachew Alemu Anshebo Ataklti Abraha Gebreyohanes Bizuneh Gebremichael Difer Teketel Alemu Anshebo |
| author_facet | Getachew Alemu Anshebo Ataklti Abraha Gebreyohanes Bizuneh Gebremichael Difer Teketel Alemu Anshebo |
| author_sort | Getachew Alemu Anshebo |
| collection | DOAJ |
| description | Interfacial carrier transfer kinetics is critical to the efficiency and stability of perovskite solar cells. Herein, we measure the regeneration rate constant, absorption cross-section, reduction rate constant, and conductivity of hole transport layered perovskites using scanning electrochemical microscopy (SECM). The SECM feedback revealed that the regeneration rate constant, absorption cross-section, and reduction rate constant of the nickel oxide (NiO) layer perovskite layer are higher than those of the poly (3,4-ethyenedioxythiophene)-poly (styrenesulfonate) layered perovskite. Also, at a specific flux density (Jhv), the value of the regeneration rate constant (keff) in both blue and red illuminations for the NiO/CH3NH3PbI3 film is significantly higher than in both PEDOT: PSS/CH3NH3PbI3 and FTO/CH3NH3PbI3 films. The difference in keff between layered and nonlayered perovskite conforms to the impact of the hole conducting layer on the charge transfer kinetics. According to the findings, SECM is a powerful approach for screening an appropriate hole transport layer for stable perovskite solar cells. |
| format | Article |
| id | doaj-art-c7f08c3aca064f48977b2aa12f48698f |
| institution | Kabale University |
| issn | 1687-9511 |
| language | English |
| publishDate | 2023-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Journal of Nanotechnology |
| spelling | doaj-art-c7f08c3aca064f48977b2aa12f48698f2025-02-03T06:04:52ZengWileyJournal of Nanotechnology1687-95112023-01-01202310.1155/2023/1844719Scanning Electrochemical Microscope Studies of Charge Transfer Kinetics at the Interface of the Perovskite/Hole Transport LayerGetachew Alemu Anshebo0Ataklti Abraha Gebreyohanes1Bizuneh Gebremichael Difer2Teketel Alemu Anshebo3Department of PhysicsDepartment of PhysicsPhysics DepartmentDepartment of Chemical EngineeringInterfacial carrier transfer kinetics is critical to the efficiency and stability of perovskite solar cells. Herein, we measure the regeneration rate constant, absorption cross-section, reduction rate constant, and conductivity of hole transport layered perovskites using scanning electrochemical microscopy (SECM). The SECM feedback revealed that the regeneration rate constant, absorption cross-section, and reduction rate constant of the nickel oxide (NiO) layer perovskite layer are higher than those of the poly (3,4-ethyenedioxythiophene)-poly (styrenesulfonate) layered perovskite. Also, at a specific flux density (Jhv), the value of the regeneration rate constant (keff) in both blue and red illuminations for the NiO/CH3NH3PbI3 film is significantly higher than in both PEDOT: PSS/CH3NH3PbI3 and FTO/CH3NH3PbI3 films. The difference in keff between layered and nonlayered perovskite conforms to the impact of the hole conducting layer on the charge transfer kinetics. According to the findings, SECM is a powerful approach for screening an appropriate hole transport layer for stable perovskite solar cells.http://dx.doi.org/10.1155/2023/1844719 |
| spellingShingle | Getachew Alemu Anshebo Ataklti Abraha Gebreyohanes Bizuneh Gebremichael Difer Teketel Alemu Anshebo Scanning Electrochemical Microscope Studies of Charge Transfer Kinetics at the Interface of the Perovskite/Hole Transport Layer Journal of Nanotechnology |
| title | Scanning Electrochemical Microscope Studies of Charge Transfer Kinetics at the Interface of the Perovskite/Hole Transport Layer |
| title_full | Scanning Electrochemical Microscope Studies of Charge Transfer Kinetics at the Interface of the Perovskite/Hole Transport Layer |
| title_fullStr | Scanning Electrochemical Microscope Studies of Charge Transfer Kinetics at the Interface of the Perovskite/Hole Transport Layer |
| title_full_unstemmed | Scanning Electrochemical Microscope Studies of Charge Transfer Kinetics at the Interface of the Perovskite/Hole Transport Layer |
| title_short | Scanning Electrochemical Microscope Studies of Charge Transfer Kinetics at the Interface of the Perovskite/Hole Transport Layer |
| title_sort | scanning electrochemical microscope studies of charge transfer kinetics at the interface of the perovskite hole transport layer |
| url | http://dx.doi.org/10.1155/2023/1844719 |
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