دورية أكاديمية
Room-temperature multiple phosphorescence from functionalized corannulenes:temperature sensing and afterglow organic light-emitting diode
| العنوان: | Room-temperature multiple phosphorescence from functionalized corannulenes:temperature sensing and afterglow organic light-emitting diode |
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| المؤلفون: | Si, Changfeng, Wang, Tao, Gupta, Abhishek Kumar, Cordes, David Bradford, Slawin, Alexandra Martha Zoya, Siegel, Jay S., Zysman-Colman, Eli |
| المصدر: | Si , C , Wang , T , Gupta , A K , Cordes , D B , Slawin , A M Z , Siegel , J S & Zysman-Colman , E 2023 , ' Room-temperature multiple phosphorescence from functionalized corannulenes : temperature sensing and afterglow organic light-emitting diode ' , Angewandte Chemie International Edition , vol. 62 , no. 43 , e202309718 . https://doi.org/10.1002/anie.202309718Test |
| سنة النشر: | 2023 |
| مصطلحات موضوعية: | Afterglow organic light-emitting diode, Corannulene, Multiple phosphorescence, Room-temperature phosphorescence, Temperature sensing |
| الوصف: | Corannulene-derived materials have been extensively explored in energy storage and solar cells, but, however, are rarely documented as emitters in light-emitting sensors and organic light-emitting diodes (OLEDs), due to low exciton utilization. Here, we report a family of multi-donor and acceptor (multi-D-A) motifs, TCzPhCor, TDMACPhCor, and TPXZPhCor, using corannulene as the acceptor and carbazole (Cz), 9,10-dihydro-9,10-dimethylacridine (DMAC), and phenoxazine (PXZ) as the donor, respectively. By decorating corannulene with different donors, multiple phosphorescence is realized. Theoretical and photophysical investigations reveal that TCzPhCor shows room-temperature phosphorescence (RTP) from the lowest-lying T 1 ; however, for TDMACPhCor, dual RTP originating from a higher-lying T 1 (T 1 H ) and a lower-lying T 1 (T 1 L ) can be observed, while for TPXZPhCor, T 1 H -dominated RTP occurs resulting from a stabilized high-energy T 1 geometry. Benefiting from the high-temperature sensitivity of TPXZPhCor, high color-resolution temperature sensing is achieved. Besides, due to degenerate S 1 and T 1 H states of TPXZPhCor, the first corannulene-based solution-processed afterglow organic light-emitting diodes (OLEDs) is investigated. The afterglow OLED with TPXZPhCor shows a maximum external quantum efficiency (EQE max ) and a luminance (L max ) of 3.3% and 5167 cd m -2 , respectively, which is one of the most efficient afterglow RTP OLEDs reported to date. |
| نوع الوثيقة: | article in journal/newspaper |
| وصف الملف: | application/pdf |
| اللغة: | English |
| العلاقة: | https://research-portal.st-andrews.ac.uk/en/researchoutput/roomtemperature-multiple-phosphorescence-from-functionalized-corannulenesTest(fe764d1e-4960-49ea-acbb-bb227138e3b2).html |
| DOI: | 10.1002/anie.202309718 |
| الإتاحة: | https://doi.org/10.1002/anie.202309718Test https://research-portal.st-andrews.ac.uk/en/researchoutput/roomtemperature-multiple-phosphorescence-from-functionalized-corannulenesTest(fe764d1e-4960-49ea-acbb-bb227138e3b2).html https://research-repository.st-andrews.ac.uk/bitstream/10023/28391/1/Si_2023_ACIE_Room_temperature_CC.pdfTest |
| حقوق: | info:eu-repo/semantics/openAccess |
| رقم الانضمام: | edsbas.3D144291 |
| قاعدة البيانات: | BASE |
| DOI: | 10.1002/anie.202309718 |
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