Deep-Blue Triplet–Triplet Annihilation Organic Light-Emitting Diode (CIE<sub>y</sub> ≈ 0.05) Using Tetraphenylimidazole and Benzonitrile Functionalized Anthracene/Chrysene Emitters
Herein, new deep-blue triplet-triplet annihilation (TTA) molecules, namely 4-(10-(4-(1,4,5-triphenyl-1H-imidazol-2-yl)phenyl)anthracen-9-yl)benzonitrile (TPIAnCN) and 4-(12-(4-(1,4,5-triphenyl-1H-imidazol-2-yl)phenyl)chrysen-6-yl)benzonitrile (TPIChCN), are designed, synthesized, and investigated as...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-12-01
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| Series: | Molecules |
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| Online Access: | https://www.mdpi.com/1420-3049/27/24/8923 |
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| author | Ruttapol Malatong Wijitra Waengdongbung Phattananawee Nalaoh Nuttapong Chantanop Pongsakorn Chasing Chokchai Kaiyasuan Suangsiri Arunlimsawat Taweesak Sudyoadsuk Vinich Promarak |
| author_facet | Ruttapol Malatong Wijitra Waengdongbung Phattananawee Nalaoh Nuttapong Chantanop Pongsakorn Chasing Chokchai Kaiyasuan Suangsiri Arunlimsawat Taweesak Sudyoadsuk Vinich Promarak |
| author_sort | Ruttapol Malatong |
| collection | DOAJ |
| description | Herein, new deep-blue triplet-triplet annihilation (TTA) molecules, namely 4-(10-(4-(1,4,5-triphenyl-1H-imidazol-2-yl)phenyl)anthracen-9-yl)benzonitrile (TPIAnCN) and 4-(12-(4-(1,4,5-triphenyl-1H-imidazol-2-yl)phenyl)chrysen-6-yl)benzonitrile (TPIChCN), are designed, synthesized, and investigated as emitters for organic light-emitting diodes (OLED). TPIAnCN and TPIChCN are composed of polyaromatic hydrocarbons of anthracene (An) and chrysene (Ch) as the cores functionalized with tetraphenylimidazole (TPI) and benzonitrile (CN) moieties, respectively. The experimental and theoretical results verify their excellent thermal properties, photophysical properties, as well as electrochemical properties. Particularly, their emissions are in the deep blue region, with TTA emissions being observed in their thin films. By utilization of these molecules as emitters, deep blue TTA OLEDs with CIE coordinates of (0.15, 0.05), high external quantum efficiency of 6.84%, and high exciton utilization efficiency (η<sub>s</sub>) of 48% were fabricated. This result manifests the potential use of chrysene as an alternate building block to formulate new TTA molecules for accomplishing high-performance TTA OLEDs. |
| first_indexed | 2024-03-09T16:02:02Z |
| format | Article |
| id | doaj.art-2cf066a27cb34badb7e44857ca79eb47 |
| institution | Directory Open Access Journal |
| issn | 1420-3049 |
| language | English |
| last_indexed | 2024-03-09T16:02:02Z |
| publishDate | 2022-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Molecules |
| spelling | doaj.art-2cf066a27cb34badb7e44857ca79eb472023-11-24T16:59:53ZengMDPI AGMolecules1420-30492022-12-012724892310.3390/molecules27248923Deep-Blue Triplet–Triplet Annihilation Organic Light-Emitting Diode (CIE<sub>y</sub> ≈ 0.05) Using Tetraphenylimidazole and Benzonitrile Functionalized Anthracene/Chrysene EmittersRuttapol Malatong0Wijitra Waengdongbung1Phattananawee Nalaoh2Nuttapong Chantanop3Pongsakorn Chasing4Chokchai Kaiyasuan5Suangsiri Arunlimsawat6Taweesak Sudyoadsuk7Vinich Promarak8Department of Materials Science and Engineering, School of Molecular Science and Engineering, Vidyasirimedhi Institute of Science and Technology, Wangchan, Rayong 21210, ThailandDepartment of Materials Science and Engineering, School of Molecular Science and Engineering, Vidyasirimedhi Institute of Science and Technology, Wangchan, Rayong 21210, ThailandDepartment of Materials Science and Engineering, School of Molecular Science and Engineering, Vidyasirimedhi Institute of Science and Technology, Wangchan, Rayong 21210, ThailandDepartment of Materials Science and Engineering, School of Molecular Science and Engineering, Vidyasirimedhi Institute of Science and Technology, Wangchan, Rayong 21210, ThailandDepartment of Materials Science and Engineering, School of Molecular Science and Engineering, Vidyasirimedhi Institute of Science and Technology, Wangchan, Rayong 21210, ThailandDepartment of Materials Science and Engineering, School of Molecular Science and Engineering, Vidyasirimedhi Institute of Science and Technology, Wangchan, Rayong 21210, ThailandDepartment of Materials Science and Engineering, School of Molecular Science and Engineering, Vidyasirimedhi Institute of Science and Technology, Wangchan, Rayong 21210, ThailandDepartment of Materials Science and Engineering, School of Molecular Science and Engineering, Vidyasirimedhi Institute of Science and Technology, Wangchan, Rayong 21210, ThailandDepartment of Materials Science and Engineering, School of Molecular Science and Engineering, Vidyasirimedhi Institute of Science and Technology, Wangchan, Rayong 21210, ThailandHerein, new deep-blue triplet-triplet annihilation (TTA) molecules, namely 4-(10-(4-(1,4,5-triphenyl-1H-imidazol-2-yl)phenyl)anthracen-9-yl)benzonitrile (TPIAnCN) and 4-(12-(4-(1,4,5-triphenyl-1H-imidazol-2-yl)phenyl)chrysen-6-yl)benzonitrile (TPIChCN), are designed, synthesized, and investigated as emitters for organic light-emitting diodes (OLED). TPIAnCN and TPIChCN are composed of polyaromatic hydrocarbons of anthracene (An) and chrysene (Ch) as the cores functionalized with tetraphenylimidazole (TPI) and benzonitrile (CN) moieties, respectively. The experimental and theoretical results verify their excellent thermal properties, photophysical properties, as well as electrochemical properties. Particularly, their emissions are in the deep blue region, with TTA emissions being observed in their thin films. By utilization of these molecules as emitters, deep blue TTA OLEDs with CIE coordinates of (0.15, 0.05), high external quantum efficiency of 6.84%, and high exciton utilization efficiency (η<sub>s</sub>) of 48% were fabricated. This result manifests the potential use of chrysene as an alternate building block to formulate new TTA molecules for accomplishing high-performance TTA OLEDs.https://www.mdpi.com/1420-3049/27/24/8923anthracenechrysenedeep-blue emitterstriplet–triplet annihilationorganic light-emitting diode |
| spellingShingle | Ruttapol Malatong Wijitra Waengdongbung Phattananawee Nalaoh Nuttapong Chantanop Pongsakorn Chasing Chokchai Kaiyasuan Suangsiri Arunlimsawat Taweesak Sudyoadsuk Vinich Promarak Deep-Blue Triplet–Triplet Annihilation Organic Light-Emitting Diode (CIE<sub>y</sub> ≈ 0.05) Using Tetraphenylimidazole and Benzonitrile Functionalized Anthracene/Chrysene Emitters Molecules anthracene chrysene deep-blue emitters triplet–triplet annihilation organic light-emitting diode |
| title | Deep-Blue Triplet–Triplet Annihilation Organic Light-Emitting Diode (CIE<sub>y</sub> ≈ 0.05) Using Tetraphenylimidazole and Benzonitrile Functionalized Anthracene/Chrysene Emitters |
| title_full | Deep-Blue Triplet–Triplet Annihilation Organic Light-Emitting Diode (CIE<sub>y</sub> ≈ 0.05) Using Tetraphenylimidazole and Benzonitrile Functionalized Anthracene/Chrysene Emitters |
| title_fullStr | Deep-Blue Triplet–Triplet Annihilation Organic Light-Emitting Diode (CIE<sub>y</sub> ≈ 0.05) Using Tetraphenylimidazole and Benzonitrile Functionalized Anthracene/Chrysene Emitters |
| title_full_unstemmed | Deep-Blue Triplet–Triplet Annihilation Organic Light-Emitting Diode (CIE<sub>y</sub> ≈ 0.05) Using Tetraphenylimidazole and Benzonitrile Functionalized Anthracene/Chrysene Emitters |
| title_short | Deep-Blue Triplet–Triplet Annihilation Organic Light-Emitting Diode (CIE<sub>y</sub> ≈ 0.05) Using Tetraphenylimidazole and Benzonitrile Functionalized Anthracene/Chrysene Emitters |
| title_sort | deep blue triplet triplet annihilation organic light emitting diode cie sub y sub ≈ 0 05 using tetraphenylimidazole and benzonitrile functionalized anthracene chrysene emitters |
| topic | anthracene chrysene deep-blue emitters triplet–triplet annihilation organic light-emitting diode |
| url | https://www.mdpi.com/1420-3049/27/24/8923 |
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