A Highly Crystalline and Wide-Bandgap Polydiarylfluorene with β‑Phase Conformation toward Stable Electroluminescence and Dual Amplified Spontaneous Emission
Bulky conjugated polymers with high crystallinity is the prerequisite for the overall improvement of performance in wide-bandgap semiconductors, including charge transport, photoluminescence quantum yield, processing reliability, and stability. Herein, we report a stable β-phase film of bulky polydi...
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| Veröffentlicht in: | ACS applied materials & interfaces 2016-08, Vol.8 (33), p.21648-21655 |
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| container_title | ACS applied materials & interfaces |
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| creator | Liu, Bin Lin, Jinyi Liu, Feng Yu, Mengna Zhang, Xinwen Xia, Ruidong Yang, Tao Fang, Yueting Xie, Linghai Huang, Wei |
| description | Bulky conjugated polymers with high crystallinity is the prerequisite for the overall improvement of performance in wide-bandgap semiconductors, including charge transport, photoluminescence quantum yield, processing reliability, and stability. Herein, we report a stable β-phase film of bulky polydiarylfluorene (PODPF) preparing by thermal annealing at ∼220 °C. The β-phase conformation and regular molecular packing are confirmed by UV-vis, photoluminescence (PL), Raman spectra, and grazing incidence X-ray diffraction (GIXD), respectively. Polymer light-emitting diodes (PLEDs) with crystalline and β-phase film serving as the active layer exhibit higher current efficiency of 1.8 cd/A (6.0 V) and more stable electroluminescence over the amorphous one. Surprisingly, mixed conformations in PODPF film produce dually tunable amplified spontaneous emission (ASE) at 463 and 482 nm. Polydiarylfluorenes with quasi-planar conformation will be a promising candidate for the next-generation gain medium toward a broadly tunable lasing and dual-wavelength laser. |
| doi_str_mv | 10.1021/acsami.6b05247 |
| format | Article |
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Polydiarylfluorenes with quasi-planar conformation will be a promising candidate for the next-generation gain medium toward a broadly tunable lasing and dual-wavelength laser.</description><identifier>ISSN: 1944-8244</identifier><identifier>EISSN: 1944-8252</identifier><identifier>DOI: 10.1021/acsami.6b05247</identifier><identifier>PMID: 27480142</identifier><language>eng</language><publisher>United States: American Chemical Society</publisher><ispartof>ACS applied materials & interfaces, 2016-08, Vol.8 (33), p.21648-21655</ispartof><rights>Copyright © 2016 American Chemical Society</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-a330t-2796d49d6062d3592bf42b78703dbf8230b6e8fe4c91b29466200ab6198efcdf3</citedby><cites>FETCH-LOGICAL-a330t-2796d49d6062d3592bf42b78703dbf8230b6e8fe4c91b29466200ab6198efcdf3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://pubs.acs.org/doi/pdf/10.1021/acsami.6b05247$$EPDF$$P50$$Gacs$$H</linktopdf><linktohtml>$$Uhttps://pubs.acs.org/doi/10.1021/acsami.6b05247$$EHTML$$P50$$Gacs$$H</linktohtml><link.rule.ids>314,776,780,2751,27055,27903,27904,56716,56766</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/27480142$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Liu, Bin</creatorcontrib><creatorcontrib>Lin, Jinyi</creatorcontrib><creatorcontrib>Liu, Feng</creatorcontrib><creatorcontrib>Yu, Mengna</creatorcontrib><creatorcontrib>Zhang, Xinwen</creatorcontrib><creatorcontrib>Xia, Ruidong</creatorcontrib><creatorcontrib>Yang, Tao</creatorcontrib><creatorcontrib>Fang, Yueting</creatorcontrib><creatorcontrib>Xie, Linghai</creatorcontrib><creatorcontrib>Huang, Wei</creatorcontrib><title>A Highly Crystalline and Wide-Bandgap Polydiarylfluorene with β‑Phase Conformation toward Stable Electroluminescence and Dual Amplified Spontaneous Emission</title><title>ACS applied materials & interfaces</title><addtitle>ACS Appl. Mater. Interfaces</addtitle><description>Bulky conjugated polymers with high crystallinity is the prerequisite for the overall improvement of performance in wide-bandgap semiconductors, including charge transport, photoluminescence quantum yield, processing reliability, and stability. Herein, we report a stable β-phase film of bulky polydiarylfluorene (PODPF) preparing by thermal annealing at ∼220 °C. The β-phase conformation and regular molecular packing are confirmed by UV-vis, photoluminescence (PL), Raman spectra, and grazing incidence X-ray diffraction (GIXD), respectively. Polymer light-emitting diodes (PLEDs) with crystalline and β-phase film serving as the active layer exhibit higher current efficiency of 1.8 cd/A (6.0 V) and more stable electroluminescence over the amorphous one. Surprisingly, mixed conformations in PODPF film produce dually tunable amplified spontaneous emission (ASE) at 463 and 482 nm. 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Mater. Interfaces</addtitle><date>2016-08-24</date><risdate>2016</risdate><volume>8</volume><issue>33</issue><spage>21648</spage><epage>21655</epage><pages>21648-21655</pages><issn>1944-8244</issn><eissn>1944-8252</eissn><abstract>Bulky conjugated polymers with high crystallinity is the prerequisite for the overall improvement of performance in wide-bandgap semiconductors, including charge transport, photoluminescence quantum yield, processing reliability, and stability. Herein, we report a stable β-phase film of bulky polydiarylfluorene (PODPF) preparing by thermal annealing at ∼220 °C. The β-phase conformation and regular molecular packing are confirmed by UV-vis, photoluminescence (PL), Raman spectra, and grazing incidence X-ray diffraction (GIXD), respectively. Polymer light-emitting diodes (PLEDs) with crystalline and β-phase film serving as the active layer exhibit higher current efficiency of 1.8 cd/A (6.0 V) and more stable electroluminescence over the amorphous one. Surprisingly, mixed conformations in PODPF film produce dually tunable amplified spontaneous emission (ASE) at 463 and 482 nm. Polydiarylfluorenes with quasi-planar conformation will be a promising candidate for the next-generation gain medium toward a broadly tunable lasing and dual-wavelength laser.</abstract><cop>United States</cop><pub>American Chemical Society</pub><pmid>27480142</pmid><doi>10.1021/acsami.6b05247</doi><tpages>8</tpages></addata></record> |
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| title | A Highly Crystalline and Wide-Bandgap Polydiarylfluorene with β‑Phase Conformation toward Stable Electroluminescence and Dual Amplified Spontaneous Emission |
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