New Ternary Blend Strategy Based on a Vertically Self‐Assembled Passivation Layer Enabling Efficient and Photostable Inverted Organic Solar Cells
Abstract Herein, a new ternary strategy to fabricate efficient and photostable inverted organic photovoltaics (OPVs) is introduced by combining a bulk heterojunction (BHJ) blend and a fullerene self‐assembled monolayer (C60‐SAM). Time‐of‐flight secondary‐ion mass spectrometry ‐ analysis reveals that...
| Main Authors: | , , , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2023-06-01
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| Series: | Advanced Science |
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| Online Access: | https://doi.org/10.1002/advs.202206802 |
| _version_ | 1797804384071974912 |
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| author | Soyeong Jeong Aniket Rana Ju‐Hyeon Kim Deping Qian Kiyoung Park Jun‐Ho Jang Joel Luke Sooncheol Kwon Jehan Kim Pabitra Shakya Tuladhar Ji‐Seon Kim Kwanghee Lee James R. Durrant Hongkyu Kang |
| author_facet | Soyeong Jeong Aniket Rana Ju‐Hyeon Kim Deping Qian Kiyoung Park Jun‐Ho Jang Joel Luke Sooncheol Kwon Jehan Kim Pabitra Shakya Tuladhar Ji‐Seon Kim Kwanghee Lee James R. Durrant Hongkyu Kang |
| author_sort | Soyeong Jeong |
| collection | DOAJ |
| description | Abstract Herein, a new ternary strategy to fabricate efficient and photostable inverted organic photovoltaics (OPVs) is introduced by combining a bulk heterojunction (BHJ) blend and a fullerene self‐assembled monolayer (C60‐SAM). Time‐of‐flight secondary‐ion mass spectrometry ‐ analysis reveals that the ternary blend is vertically phase separated with the C60‐SAM at the bottom and the BHJ on top. The average power conversion efficiency ‐ of OPVs based on the ternary system is improved from 14.9% to 15.6% by C60‐SAM addition, mostly due to increased current density (Jsc) and fill factor ‐. It is found that the C60‐SAM encourages the BHJ to make more face‐on molecular orientation because grazing incidence wide‐angle X‐ray scattering ‐ data show an increased face‐on/edge‐on orientation ratio in the ternary blend. Light‐intensity dependent Jsc data and charge carrier lifetime analysis indicate suppressed bimolecular recombination and a longer charge carrier lifetime in the ternary system, resulting in the enhancement of OPV performance. Moreover, it is demonstrated that device photostability in the ternary blend is enhanced due to the vertically self‐assembled C60‐SAM that successfully passivates the ZnO surface and protects BHJ layer from the UV‐induced photocatalytic reactions of the ZnO. These results suggest a new perspective to improve both performance and photostability of OPVs using a facial ternary method. |
| first_indexed | 2024-03-13T05:36:23Z |
| format | Article |
| id | doaj.art-38c4291d99914defab9d1b189cdc91b6 |
| institution | Directory Open Access Journal |
| issn | 2198-3844 |
| language | English |
| last_indexed | 2024-03-13T05:36:23Z |
| publishDate | 2023-06-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advanced Science |
| spelling | doaj.art-38c4291d99914defab9d1b189cdc91b62023-06-14T07:18:56ZengWileyAdvanced Science2198-38442023-06-011017n/an/a10.1002/advs.202206802New Ternary Blend Strategy Based on a Vertically Self‐Assembled Passivation Layer Enabling Efficient and Photostable Inverted Organic Solar CellsSoyeong Jeong0Aniket Rana1Ju‐Hyeon Kim2Deping Qian3Kiyoung Park4Jun‐Ho Jang5Joel Luke6Sooncheol Kwon7Jehan Kim8Pabitra Shakya Tuladhar9Ji‐Seon Kim10Kwanghee Lee11James R. Durrant12Hongkyu Kang13Department of Chemistry and Centre for Processable Electronics Imperial College London White City Campus London W12 0BZ UKDepartment of Chemistry and Centre for Processable Electronics Imperial College London White City Campus London W12 0BZ UKSchool of Materials Science and Engineering Gwangju Institute of Science and Technology (GIST) Gwangju 61005 Republic of KoreaDepartment of Chemistry and Centre for Processable Electronics Imperial College London White City Campus London W12 0BZ UKSchool of Materials Science and Engineering Gwangju Institute of Science and Technology (GIST) Gwangju 61005 Republic of KoreaHeeger Center for Advanced Materials (HCAM) Gwangju Institute of Science and Technology (GIST) Gwangju 61005 Republic of KoreaDepartment of Physics and Centre for Processable Electronics Imperial College London London SW7 2AZ UKDepartment of Energy and Materials Engineering Dongguk University Seoul 04620 Republic of KoreaPohang Accelerator Laboratory (PAL) Pohang University of Science and Technology (POSTECH) Pohang 37673 Republic of KoreaDepartment of Chemistry and Centre for Processable Electronics Imperial College London White City Campus London W12 0BZ UKDepartment of Physics and Centre for Processable Electronics Imperial College London London SW7 2AZ UKSchool of Materials Science and Engineering Gwangju Institute of Science and Technology (GIST) Gwangju 61005 Republic of KoreaDepartment of Chemistry and Centre for Processable Electronics Imperial College London White City Campus London W12 0BZ UKResearch Institute for Solar and Sustainable Energies (RISE) Gwangju 61005 Republic of KoreaAbstract Herein, a new ternary strategy to fabricate efficient and photostable inverted organic photovoltaics (OPVs) is introduced by combining a bulk heterojunction (BHJ) blend and a fullerene self‐assembled monolayer (C60‐SAM). Time‐of‐flight secondary‐ion mass spectrometry ‐ analysis reveals that the ternary blend is vertically phase separated with the C60‐SAM at the bottom and the BHJ on top. The average power conversion efficiency ‐ of OPVs based on the ternary system is improved from 14.9% to 15.6% by C60‐SAM addition, mostly due to increased current density (Jsc) and fill factor ‐. It is found that the C60‐SAM encourages the BHJ to make more face‐on molecular orientation because grazing incidence wide‐angle X‐ray scattering ‐ data show an increased face‐on/edge‐on orientation ratio in the ternary blend. Light‐intensity dependent Jsc data and charge carrier lifetime analysis indicate suppressed bimolecular recombination and a longer charge carrier lifetime in the ternary system, resulting in the enhancement of OPV performance. Moreover, it is demonstrated that device photostability in the ternary blend is enhanced due to the vertically self‐assembled C60‐SAM that successfully passivates the ZnO surface and protects BHJ layer from the UV‐induced photocatalytic reactions of the ZnO. These results suggest a new perspective to improve both performance and photostability of OPVs using a facial ternary method.https://doi.org/10.1002/advs.202206802inverted organic solar cellsnonfullerene acceptorphotostabilityself‐assembled monolayers |
| spellingShingle | Soyeong Jeong Aniket Rana Ju‐Hyeon Kim Deping Qian Kiyoung Park Jun‐Ho Jang Joel Luke Sooncheol Kwon Jehan Kim Pabitra Shakya Tuladhar Ji‐Seon Kim Kwanghee Lee James R. Durrant Hongkyu Kang New Ternary Blend Strategy Based on a Vertically Self‐Assembled Passivation Layer Enabling Efficient and Photostable Inverted Organic Solar Cells Advanced Science inverted organic solar cells nonfullerene acceptor photostability self‐assembled monolayers |
| title | New Ternary Blend Strategy Based on a Vertically Self‐Assembled Passivation Layer Enabling Efficient and Photostable Inverted Organic Solar Cells |
| title_full | New Ternary Blend Strategy Based on a Vertically Self‐Assembled Passivation Layer Enabling Efficient and Photostable Inverted Organic Solar Cells |
| title_fullStr | New Ternary Blend Strategy Based on a Vertically Self‐Assembled Passivation Layer Enabling Efficient and Photostable Inverted Organic Solar Cells |
| title_full_unstemmed | New Ternary Blend Strategy Based on a Vertically Self‐Assembled Passivation Layer Enabling Efficient and Photostable Inverted Organic Solar Cells |
| title_short | New Ternary Blend Strategy Based on a Vertically Self‐Assembled Passivation Layer Enabling Efficient and Photostable Inverted Organic Solar Cells |
| title_sort | new ternary blend strategy based on a vertically self assembled passivation layer enabling efficient and photostable inverted organic solar cells |
| topic | inverted organic solar cells nonfullerene acceptor photostability self‐assembled monolayers |
| url | https://doi.org/10.1002/advs.202206802 |
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