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231225s2019 xx |||||o 00| ||eng c |
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|a 10.1002/adma.201900921
|2 doi
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|a pubmed24n0993.xml
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|a (DE-627)NLM298145324
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|a (NLM)31197907
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
1 |
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|a Kim, Jongchan
|e verfasserin
|4 aut
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|a Systematic Control of the Orientation of Organic Phosphorescent Pt Complexes in Thin Films for Increased Optical Outcoupling
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|c 2019
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Revised 30.09.2020
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2019 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
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|a Orienting light-emitting molecules relative to the substrate is an effective method to enhance the optical outcoupling of organic light-emitting devices. Platinum(II) phosphorescent complexes enable facile control of the molecular alignment due to their planar structures. Here, the orientation of Pt(II) complexes during the growth of emissive layers is controlled by two different methods: modifying the molecular structure and using structural templating. Molecules whose structures are modified by adjusting the diketonate ligand of the Pt complex, dibenzo-(f,h)quinoxaline Pt dipivaloylmethane, (dbx)Pt(dpm), show an ≈20% increased fraction of horizontally aligned transition dipole moments compared to (dbx)Pt(dpm) doped into a 4,4'-bis(N-carbazolyl)-1,1'-biphenyl, CBP, host. Alternatively, a template composed of highly ordered 3,4,9,10-perylenetetracarboxylic dianhydride monolayers is predeposited to drive the alignment of a subsequently deposited emissive layer comprising (2,3,7,8,12,13,17,18-octaethyl)-21H,23H-porphyrinplatinum(II) doped into triindolotriazine. This results in a 60% increase in horizontally aligned transition dipole moments compared to the film deposited in the absence of the template. The findings provide a systematic route for controlling molecular alignment during layer growth, and ultimately to increase the optical outcoupling in organic light-emitting diodes
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|a Journal Article
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|a small molecule
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|a transition dipole moment
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|a vapor phase deposition
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|a Batagoda, Thilini
|e verfasserin
|4 aut
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| 700 |
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|a Lee, Jaesang
|e verfasserin
|4 aut
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|a Sylvinson, Daniel
|e verfasserin
|4 aut
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|a Ding, Kan
|e verfasserin
|4 aut
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1 |
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|a Saris, Patrick J G
|e verfasserin
|4 aut
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|a Kaipa, Ushasree
|e verfasserin
|4 aut
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1 |
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|a Oswald, Iain W H
|e verfasserin
|4 aut
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1 |
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|a Omary, Mohammad A
|e verfasserin
|4 aut
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1 |
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|a Thompson, Mark E
|e verfasserin
|4 aut
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|a Forrest, Stephen R
|e verfasserin
|4 aut
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| 773 |
0 |
8 |
|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
|d 1998
|g 31(2019), 32 vom: 12. Aug., Seite e1900921
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnns
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| 773 |
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|g volume:31
|g year:2019
|g number:32
|g day:12
|g month:08
|g pages:e1900921
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|u http://dx.doi.org/10.1002/adma.201900921
|3 Volltext
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