Blue emitting C2-symmetrical dibenzothiazolyl substituted pyrrole, furan and thiophene
The synthesis and photophysical properties of pyrrole, furan and thiophene substituted in their 2 and 5 positions by 2'-benzothiazolyl moieties have been investigated. The three species show deep-blue fluorescence with maxima in the 444–450 nm region, originating from excited states of π–π * ch...
| Main Authors: | , , , , , , , , , , |
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| Format: | Journal Article |
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RSC Publishing
2013
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| Online Access: | http://hdl.handle.net/20.500.11937/36318 |
| _version_ | 1848754735381741568 |
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| author | Reid, B. Briggs, S. Karagiannidis, L. Muzzioli, S. Raiteri, Paolo Light, M. Stagni, S. Brulatti, P. Gale, P. Ogden, Mark Massi, Massimiliano |
| author_facet | Reid, B. Briggs, S. Karagiannidis, L. Muzzioli, S. Raiteri, Paolo Light, M. Stagni, S. Brulatti, P. Gale, P. Ogden, Mark Massi, Massimiliano |
| author_sort | Reid, B. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | The synthesis and photophysical properties of pyrrole, furan and thiophene substituted in their 2 and 5 positions by 2'-benzothiazolyl moieties have been investigated. The three species show deep-blue fluorescence with maxima in the 444–450 nm region, originating from excited states of π–π * character. The photoluminescence quantum yields were found to be higher for the pyrrole and furan compounds, 0.42 and 0.47 respectively, compared to the quantum yield of the thiophene species, 0.21. Light Emitting Devices were fabricated using the pyrrole species as 4% dopant in a 4,4',4''-tri(9-carbazoyl) triphenylamine emissive layer, or the same pyrrole species as a neat film. In low concentration of dopant, the device is characterised by deep-blue emission with CIE coordinates of x = 0.182, y = 0.185; on the other hand, a neat film of the dopant produces almost white light emission with CIE x = 0.381, y = 0.400 but at a cost of quantum efficiency due to self-quenching effects. |
| first_indexed | 2025-11-14T08:45:08Z |
| format | Journal Article |
| id | curtin-20.500.11937-36318 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T08:45:08Z |
| publishDate | 2013 |
| publisher | RSC Publishing |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-363182017-09-13T15:53:34Z Blue emitting C2-symmetrical dibenzothiazolyl substituted pyrrole, furan and thiophene Reid, B. Briggs, S. Karagiannidis, L. Muzzioli, S. Raiteri, Paolo Light, M. Stagni, S. Brulatti, P. Gale, P. Ogden, Mark Massi, Massimiliano The synthesis and photophysical properties of pyrrole, furan and thiophene substituted in their 2 and 5 positions by 2'-benzothiazolyl moieties have been investigated. The three species show deep-blue fluorescence with maxima in the 444–450 nm region, originating from excited states of π–π * character. The photoluminescence quantum yields were found to be higher for the pyrrole and furan compounds, 0.42 and 0.47 respectively, compared to the quantum yield of the thiophene species, 0.21. Light Emitting Devices were fabricated using the pyrrole species as 4% dopant in a 4,4',4''-tri(9-carbazoyl) triphenylamine emissive layer, or the same pyrrole species as a neat film. In low concentration of dopant, the device is characterised by deep-blue emission with CIE coordinates of x = 0.182, y = 0.185; on the other hand, a neat film of the dopant produces almost white light emission with CIE x = 0.381, y = 0.400 but at a cost of quantum efficiency due to self-quenching effects. 2013 Journal Article http://hdl.handle.net/20.500.11937/36318 10.1039/c3tc00760j RSC Publishing fulltext |
| spellingShingle | Reid, B. Briggs, S. Karagiannidis, L. Muzzioli, S. Raiteri, Paolo Light, M. Stagni, S. Brulatti, P. Gale, P. Ogden, Mark Massi, Massimiliano Blue emitting C2-symmetrical dibenzothiazolyl substituted pyrrole, furan and thiophene |
| title | Blue emitting C2-symmetrical dibenzothiazolyl substituted pyrrole, furan and thiophene |
| title_full | Blue emitting C2-symmetrical dibenzothiazolyl substituted pyrrole, furan and thiophene |
| title_fullStr | Blue emitting C2-symmetrical dibenzothiazolyl substituted pyrrole, furan and thiophene |
| title_full_unstemmed | Blue emitting C2-symmetrical dibenzothiazolyl substituted pyrrole, furan and thiophene |
| title_short | Blue emitting C2-symmetrical dibenzothiazolyl substituted pyrrole, furan and thiophene |
| title_sort | blue emitting c2-symmetrical dibenzothiazolyl substituted pyrrole, furan and thiophene |
| url | http://hdl.handle.net/20.500.11937/36318 |