Charge selective contacts and interfaces for perovskite solar cells with improved stability and efficiency
<p>This thesis improves charge selective contacts for perovskite solar cells. First, mesoporous modification of n-type metal oxides is discovered to shift the work function of the perovskite, which enables n-type doping at the interface. A chapter on ZnO contacts elucidates chemical degradatio...
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| Format: | Thesis |
| Language: | English |
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2019
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| _version_ | 1797066685264429056 |
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| author | Schutt, K |
| author2 | Snaith, H |
| author_facet | Snaith, H Schutt, K |
| author_sort | Schutt, K |
| collection | OXFORD |
| description | <p>This thesis improves charge selective contacts for perovskite solar cells. First, mesoporous modification of n-type metal oxides is discovered to shift the work function of the perovskite, which enables n-type doping at the interface. A chapter on ZnO contacts elucidates chemical degradation mechanisms at the perovskite-ZnO interface, and a methylammonium-free perovskite is employed to suppress these reactions. Next, a Cs salt-treatment is developed to improve both the thermal stability and the Voc of cells on SnO2. In the following chapter, a novel organic p-type is one of the first alternatives to Spiro-OMeTAD that enables 20% power conversion efficiency. Finally, a dopant-free photo-cross-linkable polymer is presented that offers exceptional thermal stability for p-i-n cells, with device lifetimes exceeding 3,000 hours at 85°C.</p> |
| first_indexed | 2024-03-06T21:45:33Z |
| format | Thesis |
| id | oxford-uuid:4971f2a7-cc20-40a9-9e02-347ca47f438e |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T21:45:33Z |
| publishDate | 2019 |
| record_format | dspace |
| spelling | oxford-uuid:4971f2a7-cc20-40a9-9e02-347ca47f438e2022-03-26T15:31:48ZCharge selective contacts and interfaces for perovskite solar cells with improved stability and efficiencyThesishttp://purl.org/coar/resource_type/c_db06uuid:4971f2a7-cc20-40a9-9e02-347ca47f438ePerovskite solar cellsThin film solarCharge selective contactsEnglishORA Deposit2019Schutt, KSnaith, H<p>This thesis improves charge selective contacts for perovskite solar cells. First, mesoporous modification of n-type metal oxides is discovered to shift the work function of the perovskite, which enables n-type doping at the interface. A chapter on ZnO contacts elucidates chemical degradation mechanisms at the perovskite-ZnO interface, and a methylammonium-free perovskite is employed to suppress these reactions. Next, a Cs salt-treatment is developed to improve both the thermal stability and the Voc of cells on SnO2. In the following chapter, a novel organic p-type is one of the first alternatives to Spiro-OMeTAD that enables 20% power conversion efficiency. Finally, a dopant-free photo-cross-linkable polymer is presented that offers exceptional thermal stability for p-i-n cells, with device lifetimes exceeding 3,000 hours at 85°C.</p> |
| spellingShingle | Perovskite solar cells Thin film solar Charge selective contacts Schutt, K Charge selective contacts and interfaces for perovskite solar cells with improved stability and efficiency |
| title | Charge selective contacts and interfaces for perovskite solar cells with improved stability and efficiency |
| title_full | Charge selective contacts and interfaces for perovskite solar cells with improved stability and efficiency |
| title_fullStr | Charge selective contacts and interfaces for perovskite solar cells with improved stability and efficiency |
| title_full_unstemmed | Charge selective contacts and interfaces for perovskite solar cells with improved stability and efficiency |
| title_short | Charge selective contacts and interfaces for perovskite solar cells with improved stability and efficiency |
| title_sort | charge selective contacts and interfaces for perovskite solar cells with improved stability and efficiency |
| topic | Perovskite solar cells Thin film solar Charge selective contacts |
| work_keys_str_mv | AT schuttk chargeselectivecontactsandinterfacesforperovskitesolarcellswithimprovedstabilityandefficiency |