Cohosts with efficient host-to-emitter energy transfer for stable blue phosphorescent organic light-emitting diodes
We present a high-performance blue phosphorescent organic light-emitting diode exhibiting a low operating voltage (4.1 V), high external quantum efficiency (23.4%, at 500 cd m −2 ) with a low efficiency roll-off (4.7%), and a long operation lifetime (time at which the luminance reaches 95% of its in...
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| Veröffentlicht in: | Journal of materials chemistry. C, Materials for optical and electronic devices Materials for optical and electronic devices, 2021-12, Vol.9 (48), p.17412-17418 |
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| container_issue | 48 |
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| container_title | Journal of materials chemistry. C, Materials for optical and electronic devices |
| container_volume | 9 |
| creator | Ihn, Soo-Ghang Kwon, Eun Suk Jung, Yongsik Kim, Jong Soo Nam, Sungho Kim, Joonghyuk Kim, Sangmo Jeon, Soon Ok Chung, Yeon Sook Park, Sangho Huh, Dal Ho Kim, Hyun Jung Kang, Hosuk Lee, Namheon Bae, Hye Jin Choi, Hyeonho |
| description | We present a high-performance blue phosphorescent organic light-emitting diode exhibiting a low operating voltage (4.1 V), high external quantum efficiency (23.4%, at 500 cd m
−2
) with a low efficiency roll-off (4.7%), and a long operation lifetime (time at which the luminance reaches 95% of its initial value, LT95 = 232 h). These are mainly attributed to a well-developed exciplex-forming cohost composed of judiciously selected component hosts. The cohost provides low injection barriers and stable transport for both positive and negative charges, excellent charge balance, and finely tuned exciplex energy for efficient host-to-emitter energy transfer.
We present a high-performance blue phosphorescent organic light-emitting diode exhibiting a low operating voltage (4.1 V), high external quantum efficiency (23.4%, at 500 cd m
−2
) with a low efficiency roll-off (4.7%), and a long operation lifetime (time at which the luminance reaches 95% of its initial value, LT95 = 232 h). |
| doi_str_mv | 10.1039/d1tc04680b |
| format | Article |
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−2
) with a low efficiency roll-off (4.7%), and a long operation lifetime (time at which the luminance reaches 95% of its initial value, LT95 = 232 h). These are mainly attributed to a well-developed exciplex-forming cohost composed of judiciously selected component hosts. The cohost provides low injection barriers and stable transport for both positive and negative charges, excellent charge balance, and finely tuned exciplex energy for efficient host-to-emitter energy transfer.
We present a high-performance blue phosphorescent organic light-emitting diode exhibiting a low operating voltage (4.1 V), high external quantum efficiency (23.4%, at 500 cd m
−2
) with a low efficiency roll-off (4.7%), and a long operation lifetime (time at which the luminance reaches 95% of its initial value, LT95 = 232 h).</description><identifier>ISSN: 2050-7526</identifier><identifier>EISSN: 2050-7534</identifier><identifier>DOI: 10.1039/d1tc04680b</identifier><language>eng</language><publisher>Cambridge: Royal Society of Chemistry</publisher><subject>Emitters ; Energy transfer ; Organic light emitting diodes ; Phosphorescence ; Quantum efficiency</subject><ispartof>Journal of materials chemistry. C, Materials for optical and electronic devices, 2021-12, Vol.9 (48), p.17412-17418</ispartof><rights>Copyright Royal Society of Chemistry 2021</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c281t-dadd0b6e5b21455cf504f009dacfbe5396fd6b2cd4518655b123157bb5cdcf013</citedby><cites>FETCH-LOGICAL-c281t-dadd0b6e5b21455cf504f009dacfbe5396fd6b2cd4518655b123157bb5cdcf013</cites><orcidid>0000-0003-3188-1536 ; 0000-0003-1333-0546 ; 0000-0003-4496-2351 ; 0000-0002-6884-8193</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,27901,27902</link.rule.ids></links><search><creatorcontrib>Ihn, Soo-Ghang</creatorcontrib><creatorcontrib>Kwon, Eun Suk</creatorcontrib><creatorcontrib>Jung, Yongsik</creatorcontrib><creatorcontrib>Kim, Jong Soo</creatorcontrib><creatorcontrib>Nam, Sungho</creatorcontrib><creatorcontrib>Kim, Joonghyuk</creatorcontrib><creatorcontrib>Kim, Sangmo</creatorcontrib><creatorcontrib>Jeon, Soon Ok</creatorcontrib><creatorcontrib>Chung, Yeon Sook</creatorcontrib><creatorcontrib>Park, Sangho</creatorcontrib><creatorcontrib>Huh, Dal Ho</creatorcontrib><creatorcontrib>Kim, Hyun Jung</creatorcontrib><creatorcontrib>Kang, Hosuk</creatorcontrib><creatorcontrib>Lee, Namheon</creatorcontrib><creatorcontrib>Bae, Hye Jin</creatorcontrib><creatorcontrib>Choi, Hyeonho</creatorcontrib><title>Cohosts with efficient host-to-emitter energy transfer for stable blue phosphorescent organic light-emitting diodes</title><title>Journal of materials chemistry. C, Materials for optical and electronic devices</title><description>We present a high-performance blue phosphorescent organic light-emitting diode exhibiting a low operating voltage (4.1 V), high external quantum efficiency (23.4%, at 500 cd m
−2
) with a low efficiency roll-off (4.7%), and a long operation lifetime (time at which the luminance reaches 95% of its initial value, LT95 = 232 h). These are mainly attributed to a well-developed exciplex-forming cohost composed of judiciously selected component hosts. The cohost provides low injection barriers and stable transport for both positive and negative charges, excellent charge balance, and finely tuned exciplex energy for efficient host-to-emitter energy transfer.
We present a high-performance blue phosphorescent organic light-emitting diode exhibiting a low operating voltage (4.1 V), high external quantum efficiency (23.4%, at 500 cd m
−2
) with a low efficiency roll-off (4.7%), and a long operation lifetime (time at which the luminance reaches 95% of its initial value, LT95 = 232 h).</description><subject>Emitters</subject><subject>Energy transfer</subject><subject>Organic light emitting diodes</subject><subject>Phosphorescence</subject><subject>Quantum efficiency</subject><issn>2050-7526</issn><issn>2050-7534</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><recordid>eNpFkMtLAzEQxoMoWGov3oWAN2E12d2ku0dd6wMKXup5yWOyTdluapIi_e9NXakDwzz4fTPwIXRNyT0lRf2gaVSk5BWRZ2iSE0ayOSvK81Of80s0C2FDUlSUV7yeoNC4tQsx4G8b1xiMscrCEPFxmUWXwdbGCB7DAL474OjFEEyajfM4RCF7wLLfA94lQUoPQR3lzndisAr3tlvH8YgdOqyt0xCu0IURfYDZX52iz5fFqnnLlh-v783jMlN5RWOmhdZEcmAypyVjyjBSGkJqLZSRwIqaG81lrnTJaMUZkzQvKJtLyZRWhtBiim7HuzvvvvYQYrtxez-kl23OKWF0XhV1ou5GSnkXggfT7rzdCn9oKWmPvrbPdNX8-vqU4JsR9kGduH_fix8k_ndC</recordid><startdate>20211216</startdate><enddate>20211216</enddate><creator>Ihn, Soo-Ghang</creator><creator>Kwon, Eun Suk</creator><creator>Jung, Yongsik</creator><creator>Kim, Jong Soo</creator><creator>Nam, Sungho</creator><creator>Kim, Joonghyuk</creator><creator>Kim, Sangmo</creator><creator>Jeon, Soon Ok</creator><creator>Chung, Yeon Sook</creator><creator>Park, Sangho</creator><creator>Huh, Dal Ho</creator><creator>Kim, Hyun Jung</creator><creator>Kang, Hosuk</creator><creator>Lee, Namheon</creator><creator>Bae, Hye Jin</creator><creator>Choi, Hyeonho</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/0000-0003-3188-1536</orcidid><orcidid>https://orcid.org/0000-0003-1333-0546</orcidid><orcidid>https://orcid.org/0000-0003-4496-2351</orcidid><orcidid>https://orcid.org/0000-0002-6884-8193</orcidid></search><sort><creationdate>20211216</creationdate><title>Cohosts with efficient host-to-emitter energy transfer for stable blue phosphorescent organic light-emitting diodes</title><author>Ihn, Soo-Ghang ; Kwon, Eun Suk ; Jung, Yongsik ; Kim, Jong Soo ; Nam, Sungho ; Kim, Joonghyuk ; Kim, Sangmo ; Jeon, Soon Ok ; Chung, Yeon Sook ; Park, Sangho ; Huh, Dal Ho ; Kim, Hyun Jung ; Kang, Hosuk ; Lee, Namheon ; Bae, Hye Jin ; Choi, Hyeonho</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c281t-dadd0b6e5b21455cf504f009dacfbe5396fd6b2cd4518655b123157bb5cdcf013</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2021</creationdate><topic>Emitters</topic><topic>Energy transfer</topic><topic>Organic light emitting diodes</topic><topic>Phosphorescence</topic><topic>Quantum efficiency</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Ihn, Soo-Ghang</creatorcontrib><creatorcontrib>Kwon, Eun Suk</creatorcontrib><creatorcontrib>Jung, Yongsik</creatorcontrib><creatorcontrib>Kim, Jong Soo</creatorcontrib><creatorcontrib>Nam, Sungho</creatorcontrib><creatorcontrib>Kim, Joonghyuk</creatorcontrib><creatorcontrib>Kim, Sangmo</creatorcontrib><creatorcontrib>Jeon, Soon Ok</creatorcontrib><creatorcontrib>Chung, Yeon Sook</creatorcontrib><creatorcontrib>Park, Sangho</creatorcontrib><creatorcontrib>Huh, Dal Ho</creatorcontrib><creatorcontrib>Kim, Hyun Jung</creatorcontrib><creatorcontrib>Kang, Hosuk</creatorcontrib><creatorcontrib>Lee, Namheon</creatorcontrib><creatorcontrib>Bae, Hye Jin</creatorcontrib><creatorcontrib>Choi, Hyeonho</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. 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−2
) with a low efficiency roll-off (4.7%), and a long operation lifetime (time at which the luminance reaches 95% of its initial value, LT95 = 232 h). These are mainly attributed to a well-developed exciplex-forming cohost composed of judiciously selected component hosts. The cohost provides low injection barriers and stable transport for both positive and negative charges, excellent charge balance, and finely tuned exciplex energy for efficient host-to-emitter energy transfer.
We present a high-performance blue phosphorescent organic light-emitting diode exhibiting a low operating voltage (4.1 V), high external quantum efficiency (23.4%, at 500 cd m
−2
) with a low efficiency roll-off (4.7%), and a long operation lifetime (time at which the luminance reaches 95% of its initial value, LT95 = 232 h).</abstract><cop>Cambridge</cop><pub>Royal Society of Chemistry</pub><doi>10.1039/d1tc04680b</doi><tpages>7</tpages><orcidid>https://orcid.org/0000-0003-3188-1536</orcidid><orcidid>https://orcid.org/0000-0003-1333-0546</orcidid><orcidid>https://orcid.org/0000-0003-4496-2351</orcidid><orcidid>https://orcid.org/0000-0002-6884-8193</orcidid></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 2050-7526 |
| ispartof | Journal of materials chemistry. C, Materials for optical and electronic devices, 2021-12, Vol.9 (48), p.17412-17418 |
| issn | 2050-7526 2050-7534 |
| language | eng |
| recordid | cdi_rsc_primary_d1tc04680b |
| source | Royal Society Of Chemistry Journals 2008- |
| subjects | Emitters Energy transfer Organic light emitting diodes Phosphorescence Quantum efficiency |
| title | Cohosts with efficient host-to-emitter energy transfer for stable blue phosphorescent organic light-emitting diodes |
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