Modified t-butyl in tetradentate platinum (II) complexes enables exceptional lifetime for blue-phosphorescent organic light-emitting diodes
Abstract In blue phosphorescent dopants, the tetradentate platinum(II) complex is a promising material showing high efficiency and stability in devices. However, metal-metal-to-ligand charge transfer (MMLCT) formation leads to low photo-luminescence quantum yields (PLQYs), wide spectra, and intermol...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2024-04-01
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| Series: | Nature Communications |
| Online Access: | https://doi.org/10.1038/s41467-024-47307-3 |
| _version_ | 1797219756234768384 |
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| author | Young Hun Jung Gyeong Seok Lee Subramanian Muruganantham Hye Rin Kim Jun Hyeog Oh Jung Ho Ham Sagar B. Yadav Ji Hyun Lee Mi Young Chae Yun-Hi Kim Jang Hyuk Kwon |
| author_facet | Young Hun Jung Gyeong Seok Lee Subramanian Muruganantham Hye Rin Kim Jun Hyeog Oh Jung Ho Ham Sagar B. Yadav Ji Hyun Lee Mi Young Chae Yun-Hi Kim Jang Hyuk Kwon |
| author_sort | Young Hun Jung |
| collection | DOAJ |
| description | Abstract In blue phosphorescent dopants, the tetradentate platinum(II) complex is a promising material showing high efficiency and stability in devices. However, metal-metal-to-ligand charge transfer (MMLCT) formation leads to low photo-luminescence quantum yields (PLQYs), wide spectra, and intermolecular interaction. To suppress MMLCT, PtON-tb-TTB and PtON-tb-DTB are designed using theoretical simulation by modifying t-butyl in PtON-TBBI. Both materials effectively suppress MMLCT and exhibit high PLQYs of 99% and 78% in 5 wt% doped film, respectively. The PtON-tb-TTB and PtON-tb-DTB devices have maximum external quantum efficiencies of 26.3% and 20.9%, respectively. Additionally, the PtON-tb-DTB device has an extended lifetime of 169.3 h with an initial luminescence of 1200 nit, which is 8.5 times greater than the PtON-TBBI device. Extended lifetime because of suppressed MMLCT and smaller displacement between the lowest triplet and triplet metal-centered states compared to other dopants. The study provides an effective approach to designing platinum(II) complexes for long device lifetimes. |
| first_indexed | 2024-04-24T12:38:42Z |
| format | Article |
| id | doaj.art-be15b0cecf4b4e38b2c5f052c6956006 |
| institution | Directory Open Access Journal |
| issn | 2041-1723 |
| language | English |
| last_indexed | 2024-04-24T12:38:42Z |
| publishDate | 2024-04-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Nature Communications |
| spelling | doaj.art-be15b0cecf4b4e38b2c5f052c69560062024-04-07T11:23:51ZengNature PortfolioNature Communications2041-17232024-04-0115111110.1038/s41467-024-47307-3Modified t-butyl in tetradentate platinum (II) complexes enables exceptional lifetime for blue-phosphorescent organic light-emitting diodesYoung Hun Jung0Gyeong Seok Lee1Subramanian Muruganantham2Hye Rin Kim3Jun Hyeog Oh4Jung Ho Ham5Sagar B. Yadav6Ji Hyun Lee7Mi Young Chae8Yun-Hi Kim9Jang Hyuk Kwon10Organic Optoelectronic Device Lab (OODL), Department of Information Display, Kyung Hee UniversityDepartment of Chemistry and RIMA, Gyeongsang National UniversityOrganic Optoelectronic Device Lab (OODL), Department of Information Display, Kyung Hee UniversityOrganic Optoelectronic Device Lab (OODL), Department of Information Display, Kyung Hee UniversityOrganic Optoelectronic Device Lab (OODL), Department of Information Display, Kyung Hee UniversityOrganic Optoelectronic Device Lab (OODL), Department of Information Display, Kyung Hee UniversityOrganic Optoelectronic Device Lab (OODL), Department of Information Display, Kyung Hee UniversityDepartment of Chemistry and RIMA, Gyeongsang National UniversityOrganic Optoelectronic Device Lab (OODL), Department of Information Display, Kyung Hee UniversityDepartment of Chemistry and RIMA, Gyeongsang National UniversityOrganic Optoelectronic Device Lab (OODL), Department of Information Display, Kyung Hee UniversityAbstract In blue phosphorescent dopants, the tetradentate platinum(II) complex is a promising material showing high efficiency and stability in devices. However, metal-metal-to-ligand charge transfer (MMLCT) formation leads to low photo-luminescence quantum yields (PLQYs), wide spectra, and intermolecular interaction. To suppress MMLCT, PtON-tb-TTB and PtON-tb-DTB are designed using theoretical simulation by modifying t-butyl in PtON-TBBI. Both materials effectively suppress MMLCT and exhibit high PLQYs of 99% and 78% in 5 wt% doped film, respectively. The PtON-tb-TTB and PtON-tb-DTB devices have maximum external quantum efficiencies of 26.3% and 20.9%, respectively. Additionally, the PtON-tb-DTB device has an extended lifetime of 169.3 h with an initial luminescence of 1200 nit, which is 8.5 times greater than the PtON-TBBI device. Extended lifetime because of suppressed MMLCT and smaller displacement between the lowest triplet and triplet metal-centered states compared to other dopants. The study provides an effective approach to designing platinum(II) complexes for long device lifetimes.https://doi.org/10.1038/s41467-024-47307-3 |
| spellingShingle | Young Hun Jung Gyeong Seok Lee Subramanian Muruganantham Hye Rin Kim Jun Hyeog Oh Jung Ho Ham Sagar B. Yadav Ji Hyun Lee Mi Young Chae Yun-Hi Kim Jang Hyuk Kwon Modified t-butyl in tetradentate platinum (II) complexes enables exceptional lifetime for blue-phosphorescent organic light-emitting diodes Nature Communications |
| title | Modified t-butyl in tetradentate platinum (II) complexes enables exceptional lifetime for blue-phosphorescent organic light-emitting diodes |
| title_full | Modified t-butyl in tetradentate platinum (II) complexes enables exceptional lifetime for blue-phosphorescent organic light-emitting diodes |
| title_fullStr | Modified t-butyl in tetradentate platinum (II) complexes enables exceptional lifetime for blue-phosphorescent organic light-emitting diodes |
| title_full_unstemmed | Modified t-butyl in tetradentate platinum (II) complexes enables exceptional lifetime for blue-phosphorescent organic light-emitting diodes |
| title_short | Modified t-butyl in tetradentate platinum (II) complexes enables exceptional lifetime for blue-phosphorescent organic light-emitting diodes |
| title_sort | modified t butyl in tetradentate platinum ii complexes enables exceptional lifetime for blue phosphorescent organic light emitting diodes |
| url | https://doi.org/10.1038/s41467-024-47307-3 |
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