Enhancing Intrinsic Stability of Hybrid Perovskite Solar Cell by Strong, yet Balanced, Electronic Coupling
<p dir="ltr">In the past few years, the meteoric development of hybrid organic–inorganic perovskite solar cells (PSC) astonished the community. The efficiency has already reached the level needed for commercialization; however, the instability hinders its deployment on the market. He...
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2016
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| author | Fedwa El-Mellouhi (2011099) |
| author2 | El Tayeb Bentria (9904024) Sergey N. Rashkeev (19686943) Sabre Kais (1409968) Fahhad H. Alharbi (2198002) |
| author2_role | author author author author |
| author_facet | Fedwa El-Mellouhi (2011099) El Tayeb Bentria (9904024) Sergey N. Rashkeev (19686943) Sabre Kais (1409968) Fahhad H. Alharbi (2198002) |
| author_role | author |
| dc.creator.none.fl_str_mv | Fedwa El-Mellouhi (2011099) El Tayeb Bentria (9904024) Sergey N. Rashkeev (19686943) Sabre Kais (1409968) Fahhad H. Alharbi (2198002) |
| dc.date.none.fl_str_mv | 2016-07-26T03:00:00Z |
| dc.identifier.none.fl_str_mv | 10.1038/srep30305 |
| dc.relation.none.fl_str_mv | https://figshare.com/articles/journal_contribution/Enhancing_Intrinsic_Stability_of_Hybrid_Perovskite_Solar_Cell_by_Strong_yet_Balanced_Electronic_Coupling/27094648 |
| dc.rights.none.fl_str_mv | CC BY 4.0 info:eu-repo/semantics/openAccess |
| dc.subject.none.fl_str_mv | Engineering Materials engineering Hybrid organic–inorganic perovskite solar cells (PSC) Efficiency and commercialization Chemical stabilization Methylammonium cation (CH3NH3+) Electronic coupling Solar cell technologies |
| dc.title.none.fl_str_mv | Enhancing Intrinsic Stability of Hybrid Perovskite Solar Cell by Strong, yet Balanced, Electronic Coupling |
| dc.type.none.fl_str_mv | Text Journal contribution info:eu-repo/semantics/publishedVersion text contribution to journal |
| description | <p dir="ltr">In the past few years, the meteoric development of hybrid organic–inorganic perovskite solar cells (PSC) astonished the community. The efficiency has already reached the level needed for commercialization; however, the instability hinders its deployment on the market. Here, we report a mechanism to chemically stabilize PSC absorbers. We propose to replace the widely used methylammonium cation (CH<sub>3</sub>NH<sub>3</sub><sup>+</sup>) by alternative molecular cations allowing an enhanced electronic coupling between the cation and the PbI<sub>6</sub> octahedra while maintaining the band gap energy within the suitable range for solar cells. The mechanism exploits establishing a balance between the electronegativity of the materials’ constituents and the resulting ionic electrostatic interactions. The calculations demonstrate the concept of enhancing the electronic coupling, and hence the stability, by exploring the stabilizing features of CH<sub>3</sub>PH<sub>3</sub><sup>+</sup>, CH<sub>3</sub>SH<sub>2</sub><sup>+</sup>, and SH<sub>3</sub><sup>+</sup> cations, among several other possible candidates. Chemical stability enhancement hence results from a strong, yet balanced, electronic coupling between the cation and the halides in the octahedron. This shall unlock the hindering instability problem for PSCs and allow them to hit the market as a serious low-cost competitor to silicon based solar cell technologies.</p><h2>Other Information</h2><p dir="ltr">Published in: Scientific Reports<br>License: <a href="https://creativecommons.org/licenses/by/4.0" target="_blank">https://creativecommons.org/licenses/by/4.0</a><br>See article on publisher's website: <a href="https://dx.doi.org/10.1038/srep30305" target="_blank">https://dx.doi.org/10.1038/srep30305</a></p> |
| eu_rights_str_mv | openAccess |
| id | Manara2_2afcc82ce10fe35fefef265e6eafb64c |
| identifier_str_mv | 10.1038/srep30305 |
| network_acronym_str | Manara2 |
| network_name_str | Manara2 |
| oai_identifier_str | oai:figshare.com:article/27094648 |
| publishDate | 2016 |
| repository.mail.fl_str_mv | |
| repository.name.fl_str_mv | |
| repository_id_str | |
| rights_invalid_str_mv | CC BY 4.0 |
| spelling | Enhancing Intrinsic Stability of Hybrid Perovskite Solar Cell by Strong, yet Balanced, Electronic CouplingFedwa El-Mellouhi (2011099)El Tayeb Bentria (9904024)Sergey N. Rashkeev (19686943)Sabre Kais (1409968)Fahhad H. Alharbi (2198002)EngineeringMaterials engineeringHybrid organic–inorganic perovskite solar cells (PSC)Efficiency and commercializationChemical stabilizationMethylammonium cation (CH3NH3+)Electronic couplingSolar cell technologies<p dir="ltr">In the past few years, the meteoric development of hybrid organic–inorganic perovskite solar cells (PSC) astonished the community. The efficiency has already reached the level needed for commercialization; however, the instability hinders its deployment on the market. Here, we report a mechanism to chemically stabilize PSC absorbers. We propose to replace the widely used methylammonium cation (CH<sub>3</sub>NH<sub>3</sub><sup>+</sup>) by alternative molecular cations allowing an enhanced electronic coupling between the cation and the PbI<sub>6</sub> octahedra while maintaining the band gap energy within the suitable range for solar cells. The mechanism exploits establishing a balance between the electronegativity of the materials’ constituents and the resulting ionic electrostatic interactions. The calculations demonstrate the concept of enhancing the electronic coupling, and hence the stability, by exploring the stabilizing features of CH<sub>3</sub>PH<sub>3</sub><sup>+</sup>, CH<sub>3</sub>SH<sub>2</sub><sup>+</sup>, and SH<sub>3</sub><sup>+</sup> cations, among several other possible candidates. Chemical stability enhancement hence results from a strong, yet balanced, electronic coupling between the cation and the halides in the octahedron. This shall unlock the hindering instability problem for PSCs and allow them to hit the market as a serious low-cost competitor to silicon based solar cell technologies.</p><h2>Other Information</h2><p dir="ltr">Published in: Scientific Reports<br>License: <a href="https://creativecommons.org/licenses/by/4.0" target="_blank">https://creativecommons.org/licenses/by/4.0</a><br>See article on publisher's website: <a href="https://dx.doi.org/10.1038/srep30305" target="_blank">https://dx.doi.org/10.1038/srep30305</a></p>2016-07-26T03:00:00ZTextJournal contributioninfo:eu-repo/semantics/publishedVersiontextcontribution to journal10.1038/srep30305https://figshare.com/articles/journal_contribution/Enhancing_Intrinsic_Stability_of_Hybrid_Perovskite_Solar_Cell_by_Strong_yet_Balanced_Electronic_Coupling/27094648CC BY 4.0info:eu-repo/semantics/openAccessoai:figshare.com:article/270946482016-07-26T03:00:00Z |
| spellingShingle | Enhancing Intrinsic Stability of Hybrid Perovskite Solar Cell by Strong, yet Balanced, Electronic Coupling Fedwa El-Mellouhi (2011099) Engineering Materials engineering Hybrid organic–inorganic perovskite solar cells (PSC) Efficiency and commercialization Chemical stabilization Methylammonium cation (CH3NH3+) Electronic coupling Solar cell technologies |
| status_str | publishedVersion |
| title | Enhancing Intrinsic Stability of Hybrid Perovskite Solar Cell by Strong, yet Balanced, Electronic Coupling |
| title_full | Enhancing Intrinsic Stability of Hybrid Perovskite Solar Cell by Strong, yet Balanced, Electronic Coupling |
| title_fullStr | Enhancing Intrinsic Stability of Hybrid Perovskite Solar Cell by Strong, yet Balanced, Electronic Coupling |
| title_full_unstemmed | Enhancing Intrinsic Stability of Hybrid Perovskite Solar Cell by Strong, yet Balanced, Electronic Coupling |
| title_short | Enhancing Intrinsic Stability of Hybrid Perovskite Solar Cell by Strong, yet Balanced, Electronic Coupling |
| title_sort | Enhancing Intrinsic Stability of Hybrid Perovskite Solar Cell by Strong, yet Balanced, Electronic Coupling |
| topic | Engineering Materials engineering Hybrid organic–inorganic perovskite solar cells (PSC) Efficiency and commercialization Chemical stabilization Methylammonium cation (CH3NH3+) Electronic coupling Solar cell technologies |