Irreverent Nature of Dissymmetry Factor and Quantum Yield in Circularly Polarized Luminescence of Small Organic Molecules
Recently, a rational modification of small organic molecules has attracted considerable attention for designing advanced materials with enhanced circularly polarized luminescence (CPL) activity. A particular emphasis has been placed on fully allowed π-π* transition of rigid aromatic systems, due to...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2020-06-01
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| Series: | Frontiers in Chemistry |
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| Online Access: | https://www.frontiersin.org/article/10.3389/fchem.2020.00448/full |
| _version_ | 1818112947735494656 |
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| author | Yuya Nagata Tadashi Mori |
| author_facet | Yuya Nagata Tadashi Mori |
| author_sort | Yuya Nagata |
| collection | DOAJ |
| description | Recently, a rational modification of small organic molecules has attracted considerable attention for designing advanced materials with enhanced circularly polarized luminescence (CPL) activity. A particular emphasis has been placed on fully allowed π-π* transition of rigid aromatic systems, due to their relatively superior emission properties or quantum yields of luminescence (Φlum). However, their dissymmetry factors (glum), differential left and right CPL intensities, are typically disappointingly low at least in one to two orders of magnitude. Truly useful organic CPL materials, rated by a circular polarization luminosity index (ΛCPL) per single molecule, possess both |glum| and Φlum values high. However, how to improve these two factors simultaneously with a proper molecular design is an open question. Here, we addressed this issue by theoretical and statistical inspection on a possible relation of the glum and Φlum values. According to the analysis, we propose simple, unpretentious, yet pertinent guidelines for designing superior organic CPL materials for the future with large ΛCPL values. |
| first_indexed | 2024-12-11T03:27:02Z |
| format | Article |
| id | doaj.art-e69fd2a199454a68af1ee6a327279b8e |
| institution | Directory Open Access Journal |
| issn | 2296-2646 |
| language | English |
| last_indexed | 2024-12-11T03:27:02Z |
| publishDate | 2020-06-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Chemistry |
| spelling | doaj.art-e69fd2a199454a68af1ee6a327279b8e2022-12-22T01:22:29ZengFrontiers Media S.A.Frontiers in Chemistry2296-26462020-06-01810.3389/fchem.2020.00448535258Irreverent Nature of Dissymmetry Factor and Quantum Yield in Circularly Polarized Luminescence of Small Organic MoleculesYuya Nagata0Tadashi Mori1Institute for Chemical Reaction Design and Discovery (WPI-ICReDD), Hokkaido University, Sapporo, JapanDepartment of Applied Chemistry, Graduate School of Engineering, Osaka University, Osaka, JapanRecently, a rational modification of small organic molecules has attracted considerable attention for designing advanced materials with enhanced circularly polarized luminescence (CPL) activity. A particular emphasis has been placed on fully allowed π-π* transition of rigid aromatic systems, due to their relatively superior emission properties or quantum yields of luminescence (Φlum). However, their dissymmetry factors (glum), differential left and right CPL intensities, are typically disappointingly low at least in one to two orders of magnitude. Truly useful organic CPL materials, rated by a circular polarization luminosity index (ΛCPL) per single molecule, possess both |glum| and Φlum values high. However, how to improve these two factors simultaneously with a proper molecular design is an open question. Here, we addressed this issue by theoretical and statistical inspection on a possible relation of the glum and Φlum values. According to the analysis, we propose simple, unpretentious, yet pertinent guidelines for designing superior organic CPL materials for the future with large ΛCPL values.https://www.frontiersin.org/article/10.3389/fchem.2020.00448/fulldissymmetry factorluminescence quantum yieldcircularly polarized luminescencestructure-chiroptical property relationshipallowed π-π* transition |
| spellingShingle | Yuya Nagata Tadashi Mori Irreverent Nature of Dissymmetry Factor and Quantum Yield in Circularly Polarized Luminescence of Small Organic Molecules Frontiers in Chemistry dissymmetry factor luminescence quantum yield circularly polarized luminescence structure-chiroptical property relationship allowed π-π* transition |
| title | Irreverent Nature of Dissymmetry Factor and Quantum Yield in Circularly Polarized Luminescence of Small Organic Molecules |
| title_full | Irreverent Nature of Dissymmetry Factor and Quantum Yield in Circularly Polarized Luminescence of Small Organic Molecules |
| title_fullStr | Irreverent Nature of Dissymmetry Factor and Quantum Yield in Circularly Polarized Luminescence of Small Organic Molecules |
| title_full_unstemmed | Irreverent Nature of Dissymmetry Factor and Quantum Yield in Circularly Polarized Luminescence of Small Organic Molecules |
| title_short | Irreverent Nature of Dissymmetry Factor and Quantum Yield in Circularly Polarized Luminescence of Small Organic Molecules |
| title_sort | irreverent nature of dissymmetry factor and quantum yield in circularly polarized luminescence of small organic molecules |
| topic | dissymmetry factor luminescence quantum yield circularly polarized luminescence structure-chiroptical property relationship allowed π-π* transition |
| url | https://www.frontiersin.org/article/10.3389/fchem.2020.00448/full |
| work_keys_str_mv | AT yuyanagata irreverentnatureofdissymmetryfactorandquantumyieldincircularlypolarizedluminescenceofsmallorganicmolecules AT tadashimori irreverentnatureofdissymmetryfactorandquantumyieldincircularlypolarizedluminescenceofsmallorganicmolecules |