Indication of cooperative light amplification in 5,5″-bis(4-biphenylyl)−2,2′:5,2″-terthiophene single crystals at room temperature
Among the large number of π-conjugated compounds, thiophene/phenylene co-oligomers have been one of the promising candidates for both optically pumped light amplification media and light emission media in electroluminescence devices owing to their high thermal stability, high photoluminescence (PL)...
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| Veröffentlicht in: | Japanese Journal of Applied Physics 2020-03, Vol.59 (SD), p.SDDB02 |
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| container_title | Japanese Journal of Applied Physics |
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| creator | Matsuo, Takumi Mizuno, Hitoshi Sasaki, Fumio Yanagi, Hisao |
| description | Among the large number of π-conjugated compounds, thiophene/phenylene co-oligomers have been one of the promising candidates for both optically pumped light amplification media and light emission media in electroluminescence devices owing to their high thermal stability, high photoluminescence (PL) quantum yield and high carrier mobility. Of these, the single-crystal state of 5,5″-bis(4-biphenylyl)−2,2′:5′,2″-terthiophene (BP3T), which has been frequently used as an active medium in organic light-emitting transistor devices, indicates an unusual light amplification process in its PL spectra. Herein, we explain two insights about the indication of a cooperative light amplification process in BP3T single crystals under optical pumping. The first one is excitation beam area dependence for the nonlinear amplification threshold in PL spectra at room temperature, which has previously been carried out at 12 K. The second one is time-delayed amplified emission in various excitation stripe lengths. |
| doi_str_mv | 10.7567/1347-4065/ab54f2 |
| format | Article |
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Of these, the single-crystal state of 5,5″-bis(4-biphenylyl)−2,2′:5′,2″-terthiophene (BP3T), which has been frequently used as an active medium in organic light-emitting transistor devices, indicates an unusual light amplification process in its PL spectra. Herein, we explain two insights about the indication of a cooperative light amplification process in BP3T single crystals under optical pumping. The first one is excitation beam area dependence for the nonlinear amplification threshold in PL spectra at room temperature, which has previously been carried out at 12 K. 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J. Appl. Phys</addtitle><description>Among the large number of π-conjugated compounds, thiophene/phenylene co-oligomers have been one of the promising candidates for both optically pumped light amplification media and light emission media in electroluminescence devices owing to their high thermal stability, high photoluminescence (PL) quantum yield and high carrier mobility. Of these, the single-crystal state of 5,5″-bis(4-biphenylyl)−2,2′:5′,2″-terthiophene (BP3T), which has been frequently used as an active medium in organic light-emitting transistor devices, indicates an unusual light amplification process in its PL spectra. Herein, we explain two insights about the indication of a cooperative light amplification process in BP3T single crystals under optical pumping. The first one is excitation beam area dependence for the nonlinear amplification threshold in PL spectra at room temperature, which has previously been carried out at 12 K. The second one is time-delayed amplified emission in various excitation stripe lengths.</description><subject>Amplification</subject><subject>Carrier mobility</subject><subject>Electroluminescence</subject><subject>Excitation</subject><subject>Indication</subject><subject>Light</subject><subject>Light emission</subject><subject>Oligomers</subject><subject>Optical pumping</subject><subject>Photoluminescence</subject><subject>Room temperature</subject><subject>Single crystals</subject><subject>Thermal stability</subject><subject>Transistors</subject><issn>0021-4922</issn><issn>1347-4065</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><recordid>eNp9kM1OGzEQgK2KSg2Ue4-WeilSlthee73hxl8pEhIH4Gx5vbPE0Wa9tR2k3DgijjxK80Z5knqbtlwQkuXR2N_MaD6EvlByKEUhJzTnMuOkEBNdCd6wD2j0_2kHjQhhNONTxj6h3RDmKS0EpyP0fNnV1uhoXYddg41zPfiUPgBu7f0sYr3oW9v8Q2yHxVhsHtdZZcM3nu5-Bt2qXbUHm6cXNmabx19HYgjrLIKPM-sGAHCw3X0L2PhViLoNWEfsnVvgCIs_A5cePqOPTfqC_b9xD919P789_ZFdXV9cnh5fZYaTMmaSlmVDcplXXGiAklSFYJLW2pCqKg2DWlOgvJS0aCTkRkylruq8MgIY5VOe76Gv2769dz-XEKKau6Xv0kjF8qSSlJwWiSJbyngXgodG9d4utF8pStRgXA161aBXbY2nkvG2JC392vMd_OANfD7XvRJTdXOWztkJYaqvm_w3E5iVOw</recordid><startdate>20200301</startdate><enddate>20200301</enddate><creator>Matsuo, Takumi</creator><creator>Mizuno, Hitoshi</creator><creator>Sasaki, Fumio</creator><creator>Yanagi, Hisao</creator><general>IOP Publishing</general><general>Japanese Journal of Applied Physics</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7U5</scope><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope><orcidid>https://orcid.org/0000-0002-0874-4798</orcidid></search><sort><creationdate>20200301</creationdate><title>Indication of cooperative light amplification in 5,5″-bis(4-biphenylyl)−2,2′:5,2″-terthiophene single crystals at room temperature</title><author>Matsuo, Takumi ; Mizuno, Hitoshi ; Sasaki, Fumio ; Yanagi, Hisao</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c408t-7188f0373b45aee80b65271dac0bb8c2eda1e148716f7e3c597abd3bc5e214943</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2020</creationdate><topic>Amplification</topic><topic>Carrier mobility</topic><topic>Electroluminescence</topic><topic>Excitation</topic><topic>Indication</topic><topic>Light</topic><topic>Light emission</topic><topic>Oligomers</topic><topic>Optical pumping</topic><topic>Photoluminescence</topic><topic>Room temperature</topic><topic>Single crystals</topic><topic>Thermal stability</topic><topic>Transistors</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Matsuo, Takumi</creatorcontrib><creatorcontrib>Mizuno, Hitoshi</creatorcontrib><creatorcontrib>Sasaki, Fumio</creatorcontrib><creatorcontrib>Yanagi, Hisao</creatorcontrib><collection>CrossRef</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Japanese Journal of Applied Physics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Matsuo, Takumi</au><au>Mizuno, Hitoshi</au><au>Sasaki, Fumio</au><au>Yanagi, Hisao</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Indication of cooperative light amplification in 5,5″-bis(4-biphenylyl)−2,2′:5,2″-terthiophene single crystals at room temperature</atitle><jtitle>Japanese Journal of Applied Physics</jtitle><addtitle>Jpn. J. Appl. Phys</addtitle><date>2020-03-01</date><risdate>2020</risdate><volume>59</volume><issue>SD</issue><spage>SDDB02</spage><pages>SDDB02-</pages><issn>0021-4922</issn><eissn>1347-4065</eissn><coden>JJAPB6</coden><abstract>Among the large number of π-conjugated compounds, thiophene/phenylene co-oligomers have been one of the promising candidates for both optically pumped light amplification media and light emission media in electroluminescence devices owing to their high thermal stability, high photoluminescence (PL) quantum yield and high carrier mobility. Of these, the single-crystal state of 5,5″-bis(4-biphenylyl)−2,2′:5′,2″-terthiophene (BP3T), which has been frequently used as an active medium in organic light-emitting transistor devices, indicates an unusual light amplification process in its PL spectra. Herein, we explain two insights about the indication of a cooperative light amplification process in BP3T single crystals under optical pumping. 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| ispartof | Japanese Journal of Applied Physics, 2020-03, Vol.59 (SD), p.SDDB02 |
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| source | Institute of Physics Journals |
| subjects | Amplification Carrier mobility Electroluminescence Excitation Indication Light Light emission Oligomers Optical pumping Photoluminescence Room temperature Single crystals Thermal stability Transistors |
| title | Indication of cooperative light amplification in 5,5″-bis(4-biphenylyl)−2,2′:5,2″-terthiophene single crystals at room temperature |
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