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Conference Paper: Ultrafast transient absorption spectroscopic studies of new dumbbell-shaped platinum (Pt) systems composed of 'weight' and 'bar' chromophores
Title | Ultrafast transient absorption spectroscopic studies of new dumbbell-shaped platinum (Pt) systems composed of 'weight' and 'bar' chromophores |
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Authors | |
Keywords | dumbbell-shaped platinum complex triplet state of TPE room-temperature phosphorescence transient absorption spectroscopy |
Issue Date | 2020 |
Publisher | SPIE - International Society for Optical Engineering. The Journal's web site is located at http://spie.org/x1848.xml?WT.svl=mddp2 |
Citation | Proceedings of SPIE Conference: SPIE Photonics West OPTO, v. 11278, Ultrafast Phenomena and Nanophotonics XXIV, San Francisco, USA, 2-4 February 2020, article no. 11278-0A How to Cite? |
Abstract | Dumbbell-shaped metal complexes have received great attention in material science and chemistry because of their high ISC quantum yield and relatively long-lived triplet excited states. However, the working mechanism of the “weight” and “bar” moieties are unclear and vary with structure. In this paper, a novel dumbbell-shaped platinum complex (weight) connecting with TPE (bar) was synthesized and studied by employing time-resolved spectroscopy methods. In this system, the platinum complex, is designed to interfere with the rotation of TPE by Pt•••Pt and π−π stacking interactions, and these interactions also serve as a spin convertor to facilitate the ISC process. A N^C^N PtII-TPE decolorized triplet excited state was successfully detected by transient absorption spectroscopy for the first time and a room-temperature phosphorescence with a lifetime around 1404 ns was also observed. |
Description | Invited Paper - Session 3: Photovoltaic Materials |
Persistent Identifier | http://hdl.handle.net/10722/300843 |
ISBN | |
ISSN | 2023 SCImago Journal Rankings: 0.152 |
DC Field | Value | Language |
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dc.contributor.author | Liang, R | - |
dc.contributor.author | Xiong, W | - |
dc.contributor.author | Du, L | - |
dc.contributor.author | Phillips, DL | - |
dc.date.accessioned | 2021-07-06T03:10:59Z | - |
dc.date.available | 2021-07-06T03:10:59Z | - |
dc.date.issued | 2020 | - |
dc.identifier.citation | Proceedings of SPIE Conference: SPIE Photonics West OPTO, v. 11278, Ultrafast Phenomena and Nanophotonics XXIV, San Francisco, USA, 2-4 February 2020, article no. 11278-0A | - |
dc.identifier.isbn | 9781510633193 | - |
dc.identifier.issn | 0277-786X | - |
dc.identifier.uri | http://hdl.handle.net/10722/300843 | - |
dc.description | Invited Paper - Session 3: Photovoltaic Materials | - |
dc.description.abstract | Dumbbell-shaped metal complexes have received great attention in material science and chemistry because of their high ISC quantum yield and relatively long-lived triplet excited states. However, the working mechanism of the “weight” and “bar” moieties are unclear and vary with structure. In this paper, a novel dumbbell-shaped platinum complex (weight) connecting with TPE (bar) was synthesized and studied by employing time-resolved spectroscopy methods. In this system, the platinum complex, is designed to interfere with the rotation of TPE by Pt•••Pt and π−π stacking interactions, and these interactions also serve as a spin convertor to facilitate the ISC process. A N^C^N PtII-TPE decolorized triplet excited state was successfully detected by transient absorption spectroscopy for the first time and a room-temperature phosphorescence with a lifetime around 1404 ns was also observed. | - |
dc.language | eng | - |
dc.publisher | SPIE - International Society for Optical Engineering. The Journal's web site is located at http://spie.org/x1848.xml?WT.svl=mddp2 | - |
dc.relation.ispartof | Proceedings of SPIE Photonics West OPTO, v. 11278: Ultrafast Phenomena and Nanophotonics XXIV | - |
dc.rights | SPIE - International Society for Optical Engineering. Proceedings. Copyright © SPIE - International Society for Optical Engineering. | - |
dc.subject | dumbbell-shaped platinum complex | - |
dc.subject | triplet state of TPE | - |
dc.subject | room-temperature phosphorescence | - |
dc.subject | transient absorption spectroscopy | - |
dc.title | Ultrafast transient absorption spectroscopic studies of new dumbbell-shaped platinum (Pt) systems composed of 'weight' and 'bar' chromophores | - |
dc.type | Conference_Paper | - |
dc.identifier.email | Xiong, W: xwj0917@hku.hk | - |
dc.identifier.email | Du, L: ailleen@hku.hk | - |
dc.identifier.email | Phillips, DL: phillips@hku.hk | - |
dc.identifier.authority | Phillips, DL=rp00770 | - |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.doi | 10.1117/12.2545397 | - |
dc.identifier.scopus | eid_2-s2.0-85083762964 | - |
dc.identifier.hkuros | 323199 | - |
dc.identifier.volume | 11278 | - |
dc.identifier.spage | article no. 112780A | - |
dc.identifier.epage | article no. 112780A | - |
dc.publisher.place | United States | - |