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An optical power li...
An optical power limiting and ultrafast photophysics investigation of a series of multi-branched heavy atom substituted fluorene molecules
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- Lunden, Hampus (författare)
- Linköpings universitet,Linköping University,FOI, Swedish Defence Research Agency, Sweden,Institutionen för fysik, kemi och biologi,Tekniska fakulteten
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- Pitrat, Delphine (författare)
- Laboratoire de Chimie, Claude Bernard University Lyon 1, Lyon, France,Ecole Normale Superieure de Lyon
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- Mulatier, Jean Christophe (författare)
- Laboratoire de Chimie, Claude Bernard University Lyon 1, Lyon, France,Ecole Normale Superieure de Lyon
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- Monnereau, Cyrille (författare)
- Laboratoire de Chimie, Claude Bernard University Lyon 1, Lyon, France,Ecole Normale Superieure de Lyon
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- Minda, Iulia (författare)
- Lund University,Lunds universitet,NanoLund: Centre for Nanoscience,Annan verksamhet, LTH,Lunds Tekniska Högskola,Kemisk fysik,Enheten för fysikalisk och teoretisk kemi,Kemiska institutionen,Institutioner vid LTH,Other operations, LTH,Faculty of Engineering, LTH,Chemical Physics,Physical and theoretical chemistry,Department of Chemistry,Departments at LTH,Faculty of Engineering, LTH,The Division of Chemical Physics and NanoLund, Lund University, Lund, Sweden
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- Liotta, Adrien (författare)
- Laboratoire de Chimie, Claude Bernard University Lyon 1, Lyon, France,Ecole Normale Superieure de Lyon
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- Chábera, Pavel (författare)
- Lund University,Lunds universitet,NanoLund: Centre for Nanoscience,Annan verksamhet, LTH,Lunds Tekniska Högskola,Kemisk fysik,Enheten för fysikalisk och teoretisk kemi,Kemiska institutionen,Institutioner vid LTH,Other operations, LTH,Faculty of Engineering, LTH,Chemical Physics,Physical and theoretical chemistry,Department of Chemistry,Departments at LTH,Faculty of Engineering, LTH,The Division of Chemical Physics and NanoLund, Lund University, Lund, Sweden
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- Hopen, Didrik K. (författare)
- Department of Physics, Norwegian University of Science and Technology, Trondheim, Norway
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- Lopes, Cesar (författare)
- Swedish Defense Research Agency,Swedish Def Res Agcy, FOI, Linköping, Sweden
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- Parola, Stéphane (författare)
- Ecole Normale Superieure de Lyon,Laboratoire de Chimie, Claude Bernard University Lyon 1, Lyon, France
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- Pullerits, Tönu (författare)
- Lund University,Lunds universitet,NanoLund: Centre for Nanoscience,Annan verksamhet, LTH,Lunds Tekniska Högskola,Kemisk fysik,Enheten för fysikalisk och teoretisk kemi,Kemiska institutionen,Institutioner vid LTH,Other operations, LTH,Faculty of Engineering, LTH,Chemical Physics,Physical and theoretical chemistry,Department of Chemistry,Departments at LTH,Faculty of Engineering, LTH,The Division of Chemical Physics and NanoLund, Lund University, Lund, Sweden
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- Andraud, Chantal (författare)
- Laboratoire de Chimie, Claude Bernard University Lyon 1, Lyon, France,Ecole Normale Superieure de Lyon
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- Lindgren, Mikael, 1960- (författare)
- Linköpings universitet,Linköping University,Norwegian University of Science and Technology,Kemi,Tekniska fakulteten,Norwegian Univ Sci and Technol, Norway
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(creator_code:org_t)
- 2019-10-18
- 2019
- Engelska.
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Ingår i: Inorganics. - : MDPI AG. - 2304-6740. ; 7:10
- Relaterad länk:
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http://dx.doi.org/10... (free)
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https://www.mdpi.com...
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https://liu.diva-por... (primary) (Raw object)
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https://lup.lub.lu.s...
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https://doi.org/10.3...
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- A common molecular design paradigm for optical power limiting (OPL) applications is to introduce heavy atoms that promote intersystem crossing and triplet excited states. In order to investigate this effect, three multi-branched fluorene molecules were prepared where the central moiety was either an organic benzene unit, para-dibromobenzene, or a platinum(II)-alkynyl unit. All three molecules showed good nanosecond OPL performance in solution. However, only the dibromobenzene and Pt-alkynyl compounds showed strong microsecond triplet excited state absorption (ESA). To investigate the photophysical cause of the OPL, especially for the fully organic molecule, photokinetic measurements including ultrafast pump-probe spectroscopy were performed. At nanosecond timescales, the ESA of the organic molecule was larger than the two with intersystem crossing (ISC) promoters, explaining its good OPL performance. This points to a design strategy where the singlet-state ESA is balanced with the ISC rate to increase OPL performance at the beginning of a nanosecond pulse.
Ämnesord
- NATURVETENSKAP -- Fysik -- Atom- och molekylfysik och optik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Atom and Molecular Physics and Optics (hsv//eng)
- NATURVETENSKAP -- Kemi -- Oorganisk kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Inorganic Chemistry (hsv//eng)
Nyckelord
- Excited state absorption
- Optical power limiting
- Reverse saturable absorption
- Ultra-fast pump-probe spectroscopy
- optical power limiting; excited state absorption; reverse saturable absorption; ultra-fast pump-probe spectroscopy
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
Hitta via bibliotek
Till lärosätets databas
- Av författaren/redakt...
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Lunden, Hampus
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Pitrat, Delphine
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Mulatier, Jean C ...
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Monnereau, Cyril ...
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Minda, Iulia
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Liotta, Adrien
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visa fler...
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Chábera, Pavel
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Hopen, Didrik K.
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Lopes, Cesar
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Parola, Stéphane
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Pullerits, Tönu
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Andraud, Chantal
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Lindgren, Mikael ...
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visa färre...
- Om ämnet
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- NATURVETENSKAP
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NATURVETENSKAP
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och Fysik
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och Atom och molekyl ...
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- NATURVETENSKAP
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NATURVETENSKAP
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och Kemi
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och Oorganisk kemi
- Artiklar i publikationen
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Inorganics
- Av lärosätet
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Lunds universitet
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Linköpings universitet