|
|
|
|
| LEADER |
01000caa a22002652 4500 |
| 001 |
NLM329098357 |
| 003 |
DE-627 |
| 005 |
20241013231821.0 |
| 007 |
cr uuu---uuuuu |
| 008 |
231225s2021 xx |||||o 00| ||eng c |
| 024 |
7 |
|
|a 10.1002/adma.202101844
|2 doi
|
| 028 |
5 |
2 |
|a pubmed24n1566.xml
|
| 035 |
|
|
|a (DE-627)NLM329098357
|
| 035 |
|
|
|a (NLM)34365677
|
| 040 |
|
|
|a DE-627
|b ger
|c DE-627
|e rakwb
|
| 041 |
|
|
|a eng
|
| 100 |
1 |
|
|a Li, Yungui
|e verfasserin
|4 aut
|
| 245 |
1 |
0 |
|a Reduced Intrinsic Non-Radiative Losses Allow Room-Temperature Triplet Emission from Purely Organic Emitters
|
| 264 |
|
1 |
|c 2021
|
| 336 |
|
|
|a Text
|b txt
|2 rdacontent
|
| 337 |
|
|
|a ƒaComputermedien
|b c
|2 rdamedia
|
| 338 |
|
|
|a ƒa Online-Ressource
|b cr
|2 rdacarrier
|
| 500 |
|
|
|a Date Revised 13.10.2024
|
| 500 |
|
|
|a published: Print-Electronic
|
| 500 |
|
|
|a Citation Status PubMed-not-MEDLINE
|
| 520 |
|
|
|a © 2021 The Authors. Advanced Materials published by Wiley-VCH GmbH.
|
| 520 |
|
|
|a Persistent luminescence from triplet excitons in organic molecules is rare, as fast non-radiative deactivation typically dominates over radiative transitions. This work demonstrates that the substitution of a hydrogen atom in a derivative of phenanthroimidazole with an N-phenyl ring can substantially stabilize the excited state. This stabilization converts an organic material without phosphorescence emission into a molecular system exhibiting efficient and ultralong afterglow phosphorescence at room temperature. Results from systematic photophysical investigations, kinetic modeling, excited-state dynamic modeling, and single-crystal structure analysis identify that the long-lived triplets originate from a reduction of intrinsic non-radiative molecular relaxations. Further modification of the N-phenyl ring with halogen atoms affects the afterglow lifetime and quantum yield. As a proof-of-concept, an anticounterfeiting device is demonstrated with a time-dependent Morse code feature for data encryption based on these emitters. A fundamental design principle is outlined to achieve long-lived and emissive triplet states by suppressing intrinsic non-radiative relaxations in the form of molecular vibrations or rotations
|
| 650 |
|
4 |
|a Journal Article
|
| 650 |
|
4 |
|a non-radiative loss
|
| 650 |
|
4 |
|a phenanthroimidazole
|
| 650 |
|
4 |
|a room-temperature phosphorescence
|
| 650 |
|
4 |
|a triplet emission
|
| 700 |
1 |
|
|a Jiang, Lihui
|e verfasserin
|4 aut
|
| 700 |
1 |
|
|a Liu, Wenlan
|e verfasserin
|4 aut
|
| 700 |
1 |
|
|a Xu, Shunqi
|e verfasserin
|4 aut
|
| 700 |
1 |
|
|a Li, Tian-Yi
|e verfasserin
|4 aut
|
| 700 |
1 |
|
|a Fries, Felix
|e verfasserin
|4 aut
|
| 700 |
1 |
|
|a Zeika, Olaf
|e verfasserin
|4 aut
|
| 700 |
1 |
|
|a Zou, Yingping
|e verfasserin
|4 aut
|
| 700 |
1 |
|
|a Ramanan, Charusheela
|e verfasserin
|4 aut
|
| 700 |
1 |
|
|a Lenk, Simone
|e verfasserin
|4 aut
|
| 700 |
1 |
|
|a Scholz, Reinhard
|e verfasserin
|4 aut
|
| 700 |
1 |
|
|a Andrienko, Denis
|e verfasserin
|4 aut
|
| 700 |
1 |
|
|a Feng, Xinliang
|e verfasserin
|4 aut
|
| 700 |
1 |
|
|a Leo, Karl
|e verfasserin
|4 aut
|
| 700 |
1 |
|
|a Reineke, Sebastian
|e verfasserin
|4 aut
|
| 773 |
0 |
8 |
|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
|d 1998
|g 33(2021), 39 vom: 24. Okt., Seite e2101844
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnns
|
| 773 |
1 |
8 |
|g volume:33
|g year:2021
|g number:39
|g day:24
|g month:10
|g pages:e2101844
|
| 856 |
4 |
0 |
|u http://dx.doi.org/10.1002/adma.202101844
|3 Volltext
|
| 912 |
|
|
|a GBV_USEFLAG_A
|
| 912 |
|
|
|a SYSFLAG_A
|
| 912 |
|
|
|a GBV_NLM
|
| 912 |
|
|
|a GBV_ILN_350
|
| 951 |
|
|
|a AR
|
| 952 |
|
|
|d 33
|j 2021
|e 39
|b 24
|c 10
|h e2101844
|