Highly efficient thermally activated delayed fluorescence emitters enabled by double charge transfer pathways via ortho -linked triarylboron/carbazole hybrids
Two thermally activated delayed fluorescence (TADF) emitters with double charge transfer pathways, o B-2Cz and o B-2 t Cz, were designed and synthesized. The phenyl linker allowed the charge to transfer from donors to acceptors along with the bond direction within the molecule; however, the ortho -l...
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| Veröffentlicht in: | Journal of materials chemistry. C, Materials for optical and electronic devices Materials for optical and electronic devices, 2021-01, Vol.9 (5), p.1678-1684 |
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| container_title | Journal of materials chemistry. C, Materials for optical and electronic devices |
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| creator | Ouyang, Minting Xing, Longjiang Chen, Qiaodeng Huang, Hong Zhu, Minrong Hu, Kai Liu, Yuan Chen, Wen-Cheng Huo, Yanping Yang, Chuluo |
| description | Two thermally activated delayed fluorescence (TADF) emitters with double charge transfer pathways,
o
B-2Cz and
o
B-2
t
Cz, were designed and synthesized. The phenyl linker allowed the charge to transfer from donors to acceptors along with the bond direction within the molecule; however, the
ortho
-linked D–A–D configuration with bulky steric hindrance resulted in large D–A dihedral angles, rigid structure and cofacial interactions with small D–A spatial distances, which are favorable for minimizing the lowest singlet and the lowest triplet energy gap (Δ
E
ST
) and improving the photoluminescent efficiencies.
o
B-2Cz and
o
B-2
t
Cz were employed as emissive guest in the organic light emitting diode (OLED) devices and the maximum external quantum efficiencies (EQEs) of the devices reached 28.1% and 27.5%, respectively. |
| doi_str_mv | 10.1039/D0TC04547K |
| format | Article |
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o
B-2Cz and
o
B-2
t
Cz, were designed and synthesized. The phenyl linker allowed the charge to transfer from donors to acceptors along with the bond direction within the molecule; however, the
ortho
-linked D–A–D configuration with bulky steric hindrance resulted in large D–A dihedral angles, rigid structure and cofacial interactions with small D–A spatial distances, which are favorable for minimizing the lowest singlet and the lowest triplet energy gap (Δ
E
ST
) and improving the photoluminescent efficiencies.
o
B-2Cz and
o
B-2
t
Cz were employed as emissive guest in the organic light emitting diode (OLED) devices and the maximum external quantum efficiencies (EQEs) of the devices reached 28.1% and 27.5%, respectively.</description><identifier>ISSN: 2050-7526</identifier><identifier>EISSN: 2050-7534</identifier><identifier>DOI: 10.1039/D0TC04547K</identifier><language>eng</language><publisher>Cambridge: Royal Society of Chemistry</publisher><subject>Carbazoles ; Charge transfer ; Chemical bonds ; Crystallography ; Donors (electronic) ; Emitters ; Energy gap ; Fluorescence ; Organic light emitting diodes ; Photoluminescence ; Rigid structures ; Steric hindrance</subject><ispartof>Journal of materials chemistry. C, Materials for optical and electronic devices, 2021-01, Vol.9 (5), p.1678-1684</ispartof><rights>Copyright Royal Society of Chemistry 2021</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c226t-be36472c5930ce600f65fa4b4db10859f264bb8767ccea6e09134a47a08ac95c3</citedby><cites>FETCH-LOGICAL-c226t-be36472c5930ce600f65fa4b4db10859f264bb8767ccea6e09134a47a08ac95c3</cites><orcidid>0000-0003-4124-6026 ; 0000-0003-3788-3516 ; 0000-0002-2438-8375</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids></links><search><creatorcontrib>Ouyang, Minting</creatorcontrib><creatorcontrib>Xing, Longjiang</creatorcontrib><creatorcontrib>Chen, Qiaodeng</creatorcontrib><creatorcontrib>Huang, Hong</creatorcontrib><creatorcontrib>Zhu, Minrong</creatorcontrib><creatorcontrib>Hu, Kai</creatorcontrib><creatorcontrib>Liu, Yuan</creatorcontrib><creatorcontrib>Chen, Wen-Cheng</creatorcontrib><creatorcontrib>Huo, Yanping</creatorcontrib><creatorcontrib>Yang, Chuluo</creatorcontrib><title>Highly efficient thermally activated delayed fluorescence emitters enabled by double charge transfer pathways via ortho -linked triarylboron/carbazole hybrids</title><title>Journal of materials chemistry. C, Materials for optical and electronic devices</title><description>Two thermally activated delayed fluorescence (TADF) emitters with double charge transfer pathways,
o
B-2Cz and
o
B-2
t
Cz, were designed and synthesized. The phenyl linker allowed the charge to transfer from donors to acceptors along with the bond direction within the molecule; however, the
ortho
-linked D–A–D configuration with bulky steric hindrance resulted in large D–A dihedral angles, rigid structure and cofacial interactions with small D–A spatial distances, which are favorable for minimizing the lowest singlet and the lowest triplet energy gap (Δ
E
ST
) and improving the photoluminescent efficiencies.
o
B-2Cz and
o
B-2
t
Cz were employed as emissive guest in the organic light emitting diode (OLED) devices and the maximum external quantum efficiencies (EQEs) of the devices reached 28.1% and 27.5%, respectively.</description><subject>Carbazoles</subject><subject>Charge transfer</subject><subject>Chemical bonds</subject><subject>Crystallography</subject><subject>Donors (electronic)</subject><subject>Emitters</subject><subject>Energy gap</subject><subject>Fluorescence</subject><subject>Organic light emitting diodes</subject><subject>Photoluminescence</subject><subject>Rigid structures</subject><subject>Steric hindrance</subject><issn>2050-7526</issn><issn>2050-7534</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><recordid>eNpFUU1LxDAQLaKg6F78BQFvQt20TdP2KOsnLnhZz2WSTmy026yTrFJ_jL_VyIrO5T1m3rwZeElymvGLjBfN_IqvFlyUonrYS45yXvK0Kgux_8dzeZjMvH_hsepM1rI5Sr7u7HM_TAyNsdriGFjokdYwxB7oYN8hYMc6HGCKaIatI_QaR40M1zYEJM9wBDXEqZpY57aRMt0DPSMLBKM3SGwDof-AybN3C8xR6B1LBzu-xqVAFmgalCM3zjWQgk8XHfpJke38SXJgYPA4-8Xj5OnmerW4S5ePt_eLy2Wq81yGVGEhRZXrsim4Rsm5kaUBoUSnMl6XjcmlUKquZKU1gkTeZIUAUQGvQTelLo6Ts53vhtzbFn1oX9yWxniyzUXdZEJIIaPqfKfS5LwnNO2G7Dq-32a8_Ymg_Y-g-Aa7hnzs</recordid><startdate>20210101</startdate><enddate>20210101</enddate><creator>Ouyang, Minting</creator><creator>Xing, Longjiang</creator><creator>Chen, Qiaodeng</creator><creator>Huang, Hong</creator><creator>Zhu, Minrong</creator><creator>Hu, Kai</creator><creator>Liu, Yuan</creator><creator>Chen, Wen-Cheng</creator><creator>Huo, Yanping</creator><creator>Yang, Chuluo</creator><general>Royal Society of Chemistry</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SP</scope><scope>7U5</scope><scope>8FD</scope><scope>L7M</scope><orcidid>https://orcid.org/0000-0003-4124-6026</orcidid><orcidid>https://orcid.org/0000-0003-3788-3516</orcidid><orcidid>https://orcid.org/0000-0002-2438-8375</orcidid></search><sort><creationdate>20210101</creationdate><title>Highly efficient thermally activated delayed fluorescence emitters enabled by double charge transfer pathways via ortho -linked triarylboron/carbazole hybrids</title><author>Ouyang, Minting ; Xing, Longjiang ; Chen, Qiaodeng ; Huang, Hong ; Zhu, Minrong ; Hu, Kai ; Liu, Yuan ; Chen, Wen-Cheng ; Huo, Yanping ; Yang, Chuluo</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c226t-be36472c5930ce600f65fa4b4db10859f264bb8767ccea6e09134a47a08ac95c3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2021</creationdate><topic>Carbazoles</topic><topic>Charge transfer</topic><topic>Chemical bonds</topic><topic>Crystallography</topic><topic>Donors (electronic)</topic><topic>Emitters</topic><topic>Energy gap</topic><topic>Fluorescence</topic><topic>Organic light emitting diodes</topic><topic>Photoluminescence</topic><topic>Rigid structures</topic><topic>Steric hindrance</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Ouyang, Minting</creatorcontrib><creatorcontrib>Xing, Longjiang</creatorcontrib><creatorcontrib>Chen, Qiaodeng</creatorcontrib><creatorcontrib>Huang, Hong</creatorcontrib><creatorcontrib>Zhu, Minrong</creatorcontrib><creatorcontrib>Hu, Kai</creatorcontrib><creatorcontrib>Liu, Yuan</creatorcontrib><creatorcontrib>Chen, Wen-Cheng</creatorcontrib><creatorcontrib>Huo, Yanping</creatorcontrib><creatorcontrib>Yang, Chuluo</creatorcontrib><collection>CrossRef</collection><collection>Electronics & Communications Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Journal of materials chemistry. C, Materials for optical and electronic devices</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Ouyang, Minting</au><au>Xing, Longjiang</au><au>Chen, Qiaodeng</au><au>Huang, Hong</au><au>Zhu, Minrong</au><au>Hu, Kai</au><au>Liu, Yuan</au><au>Chen, Wen-Cheng</au><au>Huo, Yanping</au><au>Yang, Chuluo</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Highly efficient thermally activated delayed fluorescence emitters enabled by double charge transfer pathways via ortho -linked triarylboron/carbazole hybrids</atitle><jtitle>Journal of materials chemistry. C, Materials for optical and electronic devices</jtitle><date>2021-01-01</date><risdate>2021</risdate><volume>9</volume><issue>5</issue><spage>1678</spage><epage>1684</epage><pages>1678-1684</pages><issn>2050-7526</issn><eissn>2050-7534</eissn><abstract>Two thermally activated delayed fluorescence (TADF) emitters with double charge transfer pathways,
o
B-2Cz and
o
B-2
t
Cz, were designed and synthesized. The phenyl linker allowed the charge to transfer from donors to acceptors along with the bond direction within the molecule; however, the
ortho
-linked D–A–D configuration with bulky steric hindrance resulted in large D–A dihedral angles, rigid structure and cofacial interactions with small D–A spatial distances, which are favorable for minimizing the lowest singlet and the lowest triplet energy gap (Δ
E
ST
) and improving the photoluminescent efficiencies.
o
B-2Cz and
o
B-2
t
Cz were employed as emissive guest in the organic light emitting diode (OLED) devices and the maximum external quantum efficiencies (EQEs) of the devices reached 28.1% and 27.5%, respectively.</abstract><cop>Cambridge</cop><pub>Royal Society of Chemistry</pub><doi>10.1039/D0TC04547K</doi><tpages>7</tpages><orcidid>https://orcid.org/0000-0003-4124-6026</orcidid><orcidid>https://orcid.org/0000-0003-3788-3516</orcidid><orcidid>https://orcid.org/0000-0002-2438-8375</orcidid></addata></record> |
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| ispartof | Journal of materials chemistry. C, Materials for optical and electronic devices, 2021-01, Vol.9 (5), p.1678-1684 |
| issn | 2050-7526 2050-7534 |
| language | eng |
| recordid | cdi_proquest_journals_2489144646 |
| source | Royal Society Of Chemistry Journals 2008- |
| subjects | Carbazoles Charge transfer Chemical bonds Crystallography Donors (electronic) Emitters Energy gap Fluorescence Organic light emitting diodes Photoluminescence Rigid structures Steric hindrance |
| title | Highly efficient thermally activated delayed fluorescence emitters enabled by double charge transfer pathways via ortho -linked triarylboron/carbazole hybrids |
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