The effects of grating anatase on the photovoltaic performance of perovskite based solar cells
Stimulated by the extraordinary power conversion efficiency (PCE) of hybrid organic-inorganic perovskites (HOIP) based solar cells (SCs), the derivative studies on inorganic perovskites (IOP) based SCs have been intensely investigated. In order to overcome the disadvantages of CsPbBr3, most prominen...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2023-04-01
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| Series: | Heliyon |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2405844023021424 |
| _version_ | 1797837035455643648 |
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| author | Zhenyao Liang Chen Yuan Yang Zhang Le Huang Yibin Yang Ye Xiao |
| author_facet | Zhenyao Liang Chen Yuan Yang Zhang Le Huang Yibin Yang Ye Xiao |
| author_sort | Zhenyao Liang |
| collection | DOAJ |
| description | Stimulated by the extraordinary power conversion efficiency (PCE) of hybrid organic-inorganic perovskites (HOIP) based solar cells (SCs), the derivative studies on inorganic perovskites (IOP) based SCs have been intensely investigated. In order to overcome the disadvantages of CsPbBr3, most prominently the unfavorable larger band gap (2.3eV), a grating layer of mesoporous anatase TiO2(mp-TiO2) has been inserted into the conventional configuration of SCs. The grating layer acts as the electron transfer layer (ETL) and light absorption strengthening layer at the same time. Due to the combined effects, the increased contacting area increased the fill factor (FF) and enhanced light trapping in the grating layer increased the short-current density, the average PCE of IOP based SCs has increased from 5.67% to 7.58%, which is a ca. 34% increase relatively. Furthermore, research on traditional HOIP-based SCs is also conducted. Interestingly, the increasing PCE mechanism is quite different from their inorganic counterparts, which should be attributed to the strain effect of different film structures. Thus, the strain-induced defect charge-state transitions of MAPbI3 by the grating layer increased the open-circuit voltage (Voc); and similarly, the increased contacting area also increased the FF, resulting in a 13% increase for PCE. |
| first_indexed | 2024-04-09T15:18:23Z |
| format | Article |
| id | doaj.art-84ee2e65968647859b533b105a8cc2e9 |
| institution | Directory Open Access Journal |
| issn | 2405-8440 |
| language | English |
| last_indexed | 2024-04-09T15:18:23Z |
| publishDate | 2023-04-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Heliyon |
| spelling | doaj.art-84ee2e65968647859b533b105a8cc2e92023-04-29T14:51:43ZengElsevierHeliyon2405-84402023-04-0194e14935The effects of grating anatase on the photovoltaic performance of perovskite based solar cellsZhenyao Liang0Chen Yuan1Yang Zhang2Le Huang3Yibin Yang4Ye Xiao5School of Materials and Energy, Guangdong University of Technology, Guangzhou, 510006, ChinaSchool of Materials and Energy, Guangdong University of Technology, Guangzhou, 510006, ChinaSchool of Materials and Energy, Guangdong University of Technology, Guangzhou, 510006, ChinaSchool of Materials and Energy, Guangdong University of Technology, Guangzhou, 510006, ChinaSchool of Materials and Energy, Guangdong University of Technology, Guangzhou, 510006, ChinaCorresponding author.; School of Materials and Energy, Guangdong University of Technology, Guangzhou, 510006, ChinaStimulated by the extraordinary power conversion efficiency (PCE) of hybrid organic-inorganic perovskites (HOIP) based solar cells (SCs), the derivative studies on inorganic perovskites (IOP) based SCs have been intensely investigated. In order to overcome the disadvantages of CsPbBr3, most prominently the unfavorable larger band gap (2.3eV), a grating layer of mesoporous anatase TiO2(mp-TiO2) has been inserted into the conventional configuration of SCs. The grating layer acts as the electron transfer layer (ETL) and light absorption strengthening layer at the same time. Due to the combined effects, the increased contacting area increased the fill factor (FF) and enhanced light trapping in the grating layer increased the short-current density, the average PCE of IOP based SCs has increased from 5.67% to 7.58%, which is a ca. 34% increase relatively. Furthermore, research on traditional HOIP-based SCs is also conducted. Interestingly, the increasing PCE mechanism is quite different from their inorganic counterparts, which should be attributed to the strain effect of different film structures. Thus, the strain-induced defect charge-state transitions of MAPbI3 by the grating layer increased the open-circuit voltage (Voc); and similarly, the increased contacting area also increased the FF, resulting in a 13% increase for PCE.http://www.sciencedirect.com/science/article/pii/S2405844023021424PerovskitesSolar cellsGratingsAnatase |
| spellingShingle | Zhenyao Liang Chen Yuan Yang Zhang Le Huang Yibin Yang Ye Xiao The effects of grating anatase on the photovoltaic performance of perovskite based solar cells Heliyon Perovskites Solar cells Gratings Anatase |
| title | The effects of grating anatase on the photovoltaic performance of perovskite based solar cells |
| title_full | The effects of grating anatase on the photovoltaic performance of perovskite based solar cells |
| title_fullStr | The effects of grating anatase on the photovoltaic performance of perovskite based solar cells |
| title_full_unstemmed | The effects of grating anatase on the photovoltaic performance of perovskite based solar cells |
| title_short | The effects of grating anatase on the photovoltaic performance of perovskite based solar cells |
| title_sort | effects of grating anatase on the photovoltaic performance of perovskite based solar cells |
| topic | Perovskites Solar cells Gratings Anatase |
| url | http://www.sciencedirect.com/science/article/pii/S2405844023021424 |
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