Excited-state absorption of a bipyridyl platinum(II) complex with alkynyl-benzothiazolylfluorene units
The singlet excited-state lifetime of a bipyridyl platinum(II) complex containing two alkynyl-benzothiazolylfluorene units was determined to be 145+/-105 ps by fitting femtosecond transient difference absorption data, and the triplet quantum yield was measured to be 0.14. A ground-state absorption c...
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| Veröffentlicht in: | Optics letters 2010-05, Vol.35 (9), p.1305-1307 |
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| container_title | Optics letters |
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| creator | PRITCHETT, Timothy M WENFANG SUN BINGGUANG ZHANG FERRY, Michael J YUNJINP LI HALEY, Joy E MACKIE, David M SHENSKY, William MOTT, Andrew G |
| description | The singlet excited-state lifetime of a bipyridyl platinum(II) complex containing two alkynyl-benzothiazolylfluorene units was determined to be 145+/-105 ps by fitting femtosecond transient difference absorption data, and the triplet quantum yield was measured to be 0.14. A ground-state absorption cross section of 6.1 x 10(-19) cm(2) at 532 nm was deduced from UV-visible absorption data. Excited-state absorption cross sections of (6.7+/-0.1) x 10(-17) cm(2) (singlet) and (4.6+/-0.1) x 10(-16) cm(2) (triplet) were obtained by using a five-level dynamic model to fit open-aperture Z scans at picosecond and nanosecond pulse widths and a variety of pulse energies. For this complex, the ratio of the triplet excited-state absorption cross section to the ground-state absorption cross section--long used as a figure of merit for reverse saturable absorbers--thus stands at 754, to our knowledge the largest ever reported at 532 nm wavelength. |
| doi_str_mv | 10.1364/OL.35.001305 |
| format | Article |
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A ground-state absorption cross section of 6.1 x 10(-19) cm(2) at 532 nm was deduced from UV-visible absorption data. Excited-state absorption cross sections of (6.7+/-0.1) x 10(-17) cm(2) (singlet) and (4.6+/-0.1) x 10(-16) cm(2) (triplet) were obtained by using a five-level dynamic model to fit open-aperture Z scans at picosecond and nanosecond pulse widths and a variety of pulse energies. 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A ground-state absorption cross section of 6.1 x 10(-19) cm(2) at 532 nm was deduced from UV-visible absorption data. Excited-state absorption cross sections of (6.7+/-0.1) x 10(-17) cm(2) (singlet) and (4.6+/-0.1) x 10(-16) cm(2) (triplet) were obtained by using a five-level dynamic model to fit open-aperture Z scans at picosecond and nanosecond pulse widths and a variety of pulse energies. For this complex, the ratio of the triplet excited-state absorption cross section to the ground-state absorption cross section--long used as a figure of merit for reverse saturable absorbers--thus stands at 754, to our knowledge the largest ever reported at 532 nm wavelength.</description><subject>Exact sciences and technology</subject><subject>Fundamental areas of phenomenology (including applications)</subject><subject>Nonlinear optics</subject><subject>Optical materials</subject><subject>Optical susceptibility, hyperpolarizability</subject><subject>Optics</subject><subject>Physics</subject><subject>Polymers and organics</subject><issn>0146-9592</issn><issn>1539-4794</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2010</creationdate><recordtype>article</recordtype><recordid>eNpF0MFr2zAUBnAxVpY0223nostoC3X27Cc51rGEtAsEcmnPRpZlok22PEmmdf76uiTdTu8dfnzwfYR8T2GZYs5-7ndL5EuAFIF_IvOUo0jYSrDPZA4pyxPBRTYjlyH8BoB8hfiFzDJgmHMOc9JsXpWJuk5ClFFTWQXn-2hcR11DJa1MP3pTj5b2VkbTDe3NdntLlWt7q1_pi4kHKu2fsRttUunu6OLByKOzo23s4LzuNB06E8NXctFIG_S3812Q54fN0_pXsts_btf3u0RhBjERwFQmimYqUaPIWFWvYOpSMFlkaZErXtQCucxrxSCfHg5YM8wk5gXDRgEuyPUpt_fu76BDLFsTlLZWdtoNoZzqCxTAV5O8O0nlXQheN2XvTSv9WKZQvg9b7ncl8vI07MSvzsFD1er6H_5YcgI_zkAGJW3jZadM-O-ygmPBGL4BvCCAUA</recordid><startdate>20100501</startdate><enddate>20100501</enddate><creator>PRITCHETT, Timothy M</creator><creator>WENFANG SUN</creator><creator>BINGGUANG ZHANG</creator><creator>FERRY, Michael J</creator><creator>YUNJINP LI</creator><creator>HALEY, Joy E</creator><creator>MACKIE, David M</creator><creator>SHENSKY, William</creator><creator>MOTT, Andrew G</creator><general>Optical Society of America</general><scope>IQODW</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope></search><sort><creationdate>20100501</creationdate><title>Excited-state absorption of a bipyridyl platinum(II) complex with alkynyl-benzothiazolylfluorene units</title><author>PRITCHETT, Timothy M ; WENFANG SUN ; BINGGUANG ZHANG ; FERRY, Michael J ; YUNJINP LI ; HALEY, Joy E ; MACKIE, David M ; SHENSKY, William ; MOTT, Andrew G</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c320t-904c298f153d3924bd7047984a82186c58d935a6dc40635a503d432a36843fc03</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2010</creationdate><topic>Exact sciences and technology</topic><topic>Fundamental areas of phenomenology (including applications)</topic><topic>Nonlinear optics</topic><topic>Optical materials</topic><topic>Optical susceptibility, hyperpolarizability</topic><topic>Optics</topic><topic>Physics</topic><topic>Polymers and organics</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>PRITCHETT, Timothy M</creatorcontrib><creatorcontrib>WENFANG SUN</creatorcontrib><creatorcontrib>BINGGUANG ZHANG</creatorcontrib><creatorcontrib>FERRY, Michael J</creatorcontrib><creatorcontrib>YUNJINP LI</creatorcontrib><creatorcontrib>HALEY, Joy E</creatorcontrib><creatorcontrib>MACKIE, David M</creatorcontrib><creatorcontrib>SHENSKY, William</creatorcontrib><creatorcontrib>MOTT, Andrew G</creatorcontrib><collection>Pascal-Francis</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Optics letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>PRITCHETT, Timothy M</au><au>WENFANG SUN</au><au>BINGGUANG ZHANG</au><au>FERRY, Michael J</au><au>YUNJINP LI</au><au>HALEY, Joy E</au><au>MACKIE, David M</au><au>SHENSKY, William</au><au>MOTT, Andrew G</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Excited-state absorption of a bipyridyl platinum(II) complex with alkynyl-benzothiazolylfluorene units</atitle><jtitle>Optics letters</jtitle><addtitle>Opt Lett</addtitle><date>2010-05-01</date><risdate>2010</risdate><volume>35</volume><issue>9</issue><spage>1305</spage><epage>1307</epage><pages>1305-1307</pages><issn>0146-9592</issn><eissn>1539-4794</eissn><coden>OPLEDP</coden><abstract>The singlet excited-state lifetime of a bipyridyl platinum(II) complex containing two alkynyl-benzothiazolylfluorene units was determined to be 145+/-105 ps by fitting femtosecond transient difference absorption data, and the triplet quantum yield was measured to be 0.14. A ground-state absorption cross section of 6.1 x 10(-19) cm(2) at 532 nm was deduced from UV-visible absorption data. Excited-state absorption cross sections of (6.7+/-0.1) x 10(-17) cm(2) (singlet) and (4.6+/-0.1) x 10(-16) cm(2) (triplet) were obtained by using a five-level dynamic model to fit open-aperture Z scans at picosecond and nanosecond pulse widths and a variety of pulse energies. For this complex, the ratio of the triplet excited-state absorption cross section to the ground-state absorption cross section--long used as a figure of merit for reverse saturable absorbers--thus stands at 754, to our knowledge the largest ever reported at 532 nm wavelength.</abstract><cop>Washington, DC</cop><pub>Optical Society of America</pub><pmid>20436550</pmid><doi>10.1364/OL.35.001305</doi><tpages>3</tpages></addata></record> |
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| source | Optica Publishing Group Journals |
| subjects | Exact sciences and technology Fundamental areas of phenomenology (including applications) Nonlinear optics Optical materials Optical susceptibility, hyperpolarizability Optics Physics Polymers and organics |
| title | Excited-state absorption of a bipyridyl platinum(II) complex with alkynyl-benzothiazolylfluorene units |
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