Thermally Activated Delayed Fluorescence Materials Based on Homoconjugation Effect of Donor–Acceptor Triptycenes
Donor–acceptor triptycences, TPA-QNX(CN)2 and TPA-PRZ(CN)2, were synthesized and their emissive properties were studied. They exhibited a blue-green fluorescence with emission lifetimes on the order of a microsecond in cyclohexane at room temperature. The long lifetime emission is quenched by O[subs...
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| Format: | Article |
| Language: | en_US |
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American Chemical Society (ACS)
2017
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| Online Access: | http://hdl.handle.net/1721.1/107207 https://orcid.org/0000-0003-3005-9831 https://orcid.org/0000-0003-2061-3237 https://orcid.org/0000-0001-7111-0176 https://orcid.org/0000-0003-2201-5257 |
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| author | Chae, Hyun Sik Kawasumi, Katsuaki Wu, Tony C Zhu, Tianyu Van Voorhis, Troy Baldo, Marc A Swager, Timothy M |
| author2 | Massachusetts Institute of Technology. Department of Chemistry |
| author_facet | Massachusetts Institute of Technology. Department of Chemistry Chae, Hyun Sik Kawasumi, Katsuaki Wu, Tony C Zhu, Tianyu Van Voorhis, Troy Baldo, Marc A Swager, Timothy M |
| author_sort | Chae, Hyun Sik |
| collection | MIT |
| description | Donor–acceptor triptycences, TPA-QNX(CN)2 and TPA-PRZ(CN)2, were synthesized and their emissive properties were studied. They exhibited a blue-green fluorescence with emission lifetimes on the order of a microsecond in cyclohexane at room temperature. The long lifetime emission is quenched by O[subscript 2] and is attributed to thermally activated delayed florescence (TADF). Unimolecular TADF is made possible by the separation and weak coupling due to homoconjugation of the HOMO and LUMO on different arms of the three-dimensional donor–acceptor triptycene. Organic light emitting devices (OLEDs) were fabricated using TPA-QNX(CN)2 and TPA-PRZ(CN)2 as emitters which displayed electroluminescence with efficiencies as high as 9.4% EQE. |
| first_indexed | 2024-09-23T15:25:37Z |
| format | Article |
| id | mit-1721.1/107207 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T15:25:37Z |
| publishDate | 2017 |
| publisher | American Chemical Society (ACS) |
| record_format | dspace |
| spelling | mit-1721.1/1072072022-09-29T14:41:55Z Thermally Activated Delayed Fluorescence Materials Based on Homoconjugation Effect of Donor–Acceptor Triptycenes Chae, Hyun Sik Kawasumi, Katsuaki Wu, Tony C Zhu, Tianyu Van Voorhis, Troy Baldo, Marc A Swager, Timothy M Massachusetts Institute of Technology. Department of Chemistry Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science Swager, Timothy M Kawasumi, Katsuaki Wu, Tony C Zhu, Tianyu Van Voorhis, Troy Baldo, Marc A Swager, Timothy M Donor–acceptor triptycences, TPA-QNX(CN)2 and TPA-PRZ(CN)2, were synthesized and their emissive properties were studied. They exhibited a blue-green fluorescence with emission lifetimes on the order of a microsecond in cyclohexane at room temperature. The long lifetime emission is quenched by O[subscript 2] and is attributed to thermally activated delayed florescence (TADF). Unimolecular TADF is made possible by the separation and weak coupling due to homoconjugation of the HOMO and LUMO on different arms of the three-dimensional donor–acceptor triptycene. Organic light emitting devices (OLEDs) were fabricated using TPA-QNX(CN)2 and TPA-PRZ(CN)2 as emitters which displayed electroluminescence with efficiencies as high as 9.4% EQE. Samsung (Firm) Japan Society for the Promotion of Science 2017-03-07T16:04:11Z 2017-03-07T16:04:11Z 2015-09 2015-07 Article http://purl.org/eprint/type/JournalArticle 0002-7863 1520-5126 http://hdl.handle.net/1721.1/107207 Kawasumi, Katsuaki, Tony Wu, Tianyu Zhu, Hyun Sik Chae, Troy Van Voorhis, Marc A. Baldo, and Timothy M. Swager. “Thermally Activated Delayed Fluorescence Materials Based on Homoconjugation Effect of Donor–Acceptor Triptycenes.” Journal of the American Chemical Society 137, no. 37 (September 23, 2015): 11908–11911. https://orcid.org/0000-0003-3005-9831 https://orcid.org/0000-0003-2061-3237 https://orcid.org/0000-0001-7111-0176 https://orcid.org/0000-0003-2201-5257 en_US http://dx.doi.org/10.1021/jacs.5b07932 Journal of the American Chemical Society Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf American Chemical Society (ACS) Prof. Swager via Erja Kajosalo |
| spellingShingle | Chae, Hyun Sik Kawasumi, Katsuaki Wu, Tony C Zhu, Tianyu Van Voorhis, Troy Baldo, Marc A Swager, Timothy M Thermally Activated Delayed Fluorescence Materials Based on Homoconjugation Effect of Donor–Acceptor Triptycenes |
| title | Thermally Activated Delayed Fluorescence Materials Based on Homoconjugation Effect of Donor–Acceptor Triptycenes |
| title_full | Thermally Activated Delayed Fluorescence Materials Based on Homoconjugation Effect of Donor–Acceptor Triptycenes |
| title_fullStr | Thermally Activated Delayed Fluorescence Materials Based on Homoconjugation Effect of Donor–Acceptor Triptycenes |
| title_full_unstemmed | Thermally Activated Delayed Fluorescence Materials Based on Homoconjugation Effect of Donor–Acceptor Triptycenes |
| title_short | Thermally Activated Delayed Fluorescence Materials Based on Homoconjugation Effect of Donor–Acceptor Triptycenes |
| title_sort | thermally activated delayed fluorescence materials based on homoconjugation effect of donor acceptor triptycenes |
| url | http://hdl.handle.net/1721.1/107207 https://orcid.org/0000-0003-3005-9831 https://orcid.org/0000-0003-2061-3237 https://orcid.org/0000-0001-7111-0176 https://orcid.org/0000-0003-2201-5257 |
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