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The 8-hydroxyquinol...
The 8-hydroxyquinolinium cation as a lead structure for efficient color-tunable ionic small molecule emitting materials
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- Adranno, Brando (author)
- Stockholms universitet,Institutionen för material- och miljökemi (MMK),Stockholm Univ, Dept Mat & Environm Chem, Svante Arrhenius vag 16C, S-10691 Stockholm, Sweden.
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- Renier, Olivier (author)
- Stockholms universitet,Institutionen för material- och miljökemi (MMK),Stockholm Univ, Dept Mat & Environm Chem, Svante Arrhenius vag 16C, S-10691 Stockholm, Sweden.
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- Bousrez, Guillaume (author)
- Linköpings universitet,Stockholms universitet,Institutionen för material- och miljökemi (MMK),Stockholm Univ, Dept Mat & Environm Chem, Svante Arrhenius vag 16C, S-10691 Stockholm, Sweden.;Linköping Univ, Dept Sci & Technol, Lab Organ Elect, S-60174 Norrköping, Sweden.,Laboratoriet för organisk elektronik,Tekniska fakulteten
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- Paterlini, Veronica (author)
- Stockholms universitet,Institutionen för material- och miljökemi (MMK),Stockholm Univ, Dept Mat & Environm Chem, Svante Arrhenius vag 16C, S-10691 Stockholm, Sweden.
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- Baryshnikov, Glib (author)
- Linköpings universitet,Laboratoriet för organisk elektronik,Tekniska fakulteten
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- Smetana, Volodymyr (author)
- Stockholms universitet,Institutionen för material- och miljökemi (MMK),Stockholm Univ, Dept Mat & Environm Chem, Svante Arrhenius vag 16C, S-10691 Stockholm, Sweden.
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- Tang, Shi (author)
- Umeå universitet,Institutionen för fysik,Umeå Univ, Organ Photon & Elect Grp, S-90187 Umeå, Sweden.
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- Ågren, Hans (author)
- Uppsala universitet,Kemisk och biomolekylär fysik,Uppsala Univ, Sweden
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- Metlen, Andreas (author)
- The QUILL Research Centre and School of Chemistry and Chemical Engineering The Queen’s University of Belfast Belfast, Northern Ireland BT9 5AG, UK,Queens Univ Belfast, QUILL Res Ctr, Sch Chem & Chem Engn, Belfast BT95AG, North Ireland.
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- Edman, Ludvig, 1967- (author)
- Umeå universitet,Institutionen för fysik,Umeå Univ, Organ Photon & Elect Grp, S-90187 Umeå, Sweden.
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- Mudring, Anja-Verena (author)
- Stockholms universitet,Institutionen för material- och miljökemi (MMK),Aarhus University, Denmark,Stockholm Univ, Dept Mat & Environm Chem, Svante Arrhenius vag 16C, S-10691 Stockholm, Sweden.;Aarhus Univ, Dept Biol & Chem Engn & iNANO, Intelligent Adv Mat iAM, DK-8000 Aarhus, Denmark.
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- Rogers, Robin D. (author)
- Stockholms universitet,Institutionen för material- och miljökemi (MMK),The Queen's University of Belfast, Northern Ireland; The University of Alabama, USA,Stockholm Univ, Dept Mat & Environm Chem, Svante Arrhenius vag 16C, S-10691 Stockholm, Sweden.;Queens Univ Belfast, QUILL Res Ctr, Sch Chem & Chem Engn, Belfast BT95AG, North Ireland.;Univ Alabama, Dept Chem & Biochem, Tuscaloosa, AL 35487 USA.
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(creator_code:org_t)
- 2023-02-03
- 2023
- English.
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In: Advanced Photonics Research. - : John Wiley & Sons. - 2699-9293. ; 4:3
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Abstract
Subject headings
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- Albeit tris(8-hydroxyquinolinato) aluminum (Alq3) and its derivatives are prominent emitter materials for organic lighting devices, and the optical transitions occur among ligand-centered states, the use of metal-free 8-hydroxyquinoline is impractical as it suffers from strong nonradiative quenching, mainly through fast proton transfer. Herein, it is shown that the problem of rapid proton exchange and vibration quenching of light emission can be overcome not only by complexation, but also by organization of the 8-hydroxyquinolinium cations into a solid rigid network with appropriate counter-anions (here bis(trifluoromethanesulfonyl)imide). The resulting structure is stiffened by secondary bonding interactions such as pi-stacking and hydrogen bonds, which efficiently block rapid proton transfer quenching and reduce vibrational deactivation. Additionally, the optical properties are tuned through methyl substitution from deep blue (455 nm) to blue-green (488 nm). Time-dependent density functional theory (TDFT) calculations reveal the emission to occur from which an unexpectedly long-lived S-1 level, unusual for organic fluorophores. All compounds show comparable, even superior photoluminescence compared to Alq3 and related materials, both as solids and thin films with quantum yields (QYs) up to 40-50%. In addition, all compounds show appreciable thermal stability with decomposition temperatures above 310 °C.
Subject headings
- NATURVETENSKAP -- Kemi -- Oorganisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Inorganic Chemistry (hsv//eng)
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
- NATURVETENSKAP -- Kemi -- Materialkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Materials Chemistry (hsv//eng)
Keyword
- crystal engineering
- organic lighting
- photoluminescence
- secondary bonding interactions
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Adranno, Brando
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Renier, Olivier
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Bousrez, Guillau ...
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Paterlini, Veron ...
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Baryshnikov, Gli ...
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Smetana, Volodym ...
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show more...
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Tang, Shi
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Ågren, Hans
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Metlen, Andreas
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Edman, Ludvig, 1 ...
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Mudring, Anja-Ve ...
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Rogers, Robin D.
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- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Chemical Science ...
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and Inorganic Chemis ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Condensed Matter ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Chemical Science ...
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and Materials Chemis ...
- Articles in the publication
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Advanced Photoni ...
- By the university
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Umeå University
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Stockholm University
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Uppsala University
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Linköping University