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Article: Exceptional oxygen sensing capabilities and triplet state properties of Ir(ppy-NPh2)3
| Title | Exceptional oxygen sensing capabilities and triplet state properties of Ir(ppy-NPh2)3 | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Authors | |||||||||||||
| Issue Date | 2009 | ||||||||||||
| Publisher | American Chemical Society. The Journal's web site is located at http://pubs.acs.org/cm | ||||||||||||
| Citation | Chemistry Of Materials, 2009, v. 21 n. 11, p. 2173-2175 How to Cite? | ||||||||||||
| Abstract | A study was conducted to investigate the triplet state properties of Ir(ppy-NPh2)3 in comparison to those of Ir(ppy) 3 and demonstrate their technological potential for oxygen sensing. The emission spectra of Ir(ppy-NPh2)3 and Ir(ppy) 3 were compared. The slightly more structured spectra and longer decay times for Ir(ppy-NPh2)3 indicated a smaller metal-to-ligand charge transfer (MLCT) character of the emitting triplet state of the substituted complex as compared with Ir(ppy)3. It was observed that the photoluminescence quantum efficiency φPL was significantly high finding applications in OLEDs and sensors. A solution of 5 wt % Ir(ppy-NPh 2)3 and 5 wt % ethyl cellulose (EC) in THF was used to prepare the oxygen sensor. | ||||||||||||
| Persistent Identifier | http://hdl.handle.net/10722/58439 | ||||||||||||
| ISSN | 2023 Impact Factor: 7.2 2023 SCImago Journal Rankings: 2.421 | ||||||||||||
| ISI Accession Number ID |
Funding Information: This work was supported by the BMBF and by a grant from the Germany/Hong Kong Joint Research Scheme Sponsored by the Research Grant Council (RGC) of Hong Kong and the German Academic Exchange Service (DAAD) (Ref. G_HK021/06). Financial support from the RGC (Project HKU 7008/07P) and the Strategic Research Theme (U of HK) is also acknowledged. | ||||||||||||
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| Grants |
| DC Field | Value | Language |
|---|---|---|
| dc.contributor.author | Mak, CSK | en_HK |
| dc.contributor.author | Penflehner, D | en_HK |
| dc.contributor.author | Stich, M | en_HK |
| dc.contributor.author | Wolfbeis, OS | en_HK |
| dc.contributor.author | Chan, WK | en_HK |
| dc.contributor.author | Yersin, H | en_HK |
| dc.date.accessioned | 2010-05-31T03:30:19Z | - |
| dc.date.available | 2010-05-31T03:30:19Z | - |
| dc.date.issued | 2009 | en_HK |
| dc.identifier.citation | Chemistry Of Materials, 2009, v. 21 n. 11, p. 2173-2175 | en_HK |
| dc.identifier.issn | 0897-4756 | en_HK |
| dc.identifier.uri | http://hdl.handle.net/10722/58439 | - |
| dc.description.abstract | A study was conducted to investigate the triplet state properties of Ir(ppy-NPh2)3 in comparison to those of Ir(ppy) 3 and demonstrate their technological potential for oxygen sensing. The emission spectra of Ir(ppy-NPh2)3 and Ir(ppy) 3 were compared. The slightly more structured spectra and longer decay times for Ir(ppy-NPh2)3 indicated a smaller metal-to-ligand charge transfer (MLCT) character of the emitting triplet state of the substituted complex as compared with Ir(ppy)3. It was observed that the photoluminescence quantum efficiency φPL was significantly high finding applications in OLEDs and sensors. A solution of 5 wt % Ir(ppy-NPh 2)3 and 5 wt % ethyl cellulose (EC) in THF was used to prepare the oxygen sensor. | en_HK |
| dc.language | eng | en_HK |
| dc.publisher | American Chemical Society. The Journal's web site is located at http://pubs.acs.org/cm | en_HK |
| dc.relation.ispartof | Chemistry of Materials | en_HK |
| dc.title | Exceptional oxygen sensing capabilities and triplet state properties of Ir(ppy-NPh2)3 | en_HK |
| dc.type | Article | en_HK |
| dc.identifier.openurl | http://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0897-4756&volume=21&spage=2173&epage=&date=2009&atitle=Exceptional+Oxygen+Sensing+Capabilities+and+Triplet+State+Properties+of+Ir(ppy-NPh2)3 | en_HK |
| dc.identifier.email | Mak, CSK: cskm@hkucc.hku.hk | en_HK |
| dc.identifier.email | Chan, WK: waichan@hku.hk | en_HK |
| dc.identifier.authority | Mak, CSK=rp00761 | en_HK |
| dc.identifier.authority | Chan, WK=rp00667 | en_HK |
| dc.description.nature | link_to_subscribed_fulltext | - |
| dc.identifier.doi | 10.1021/cm9003678 | en_HK |
| dc.identifier.scopus | eid_2-s2.0-66849093497 | en_HK |
| dc.identifier.hkuros | 159833 | en_HK |
| dc.relation.references | http://www.scopus.com/mlt/select.url?eid=2-s2.0-66849093497&selection=ref&src=s&origin=recordpage | en_HK |
| dc.identifier.volume | 21 | en_HK |
| dc.identifier.issue | 11 | en_HK |
| dc.identifier.spage | 2173 | en_HK |
| dc.identifier.epage | 2175 | en_HK |
| dc.identifier.eissn | 1520-5002 | - |
| dc.identifier.isi | WOS:000266708700002 | - |
| dc.publisher.place | United States | en_HK |
| dc.relation.project | Synthesis, spectroscopy and OLED application of triplet emitters containing charge transport moieties | - |
| dc.identifier.scopusauthorid | Mak, CSK=8899597100 | en_HK |
| dc.identifier.scopusauthorid | Penflehner, D=26645133000 | en_HK |
| dc.identifier.scopusauthorid | Stich, M=24330119700 | en_HK |
| dc.identifier.scopusauthorid | Wolfbeis, OS=7006885211 | en_HK |
| dc.identifier.scopusauthorid | Chan, WK=13310083000 | en_HK |
| dc.identifier.scopusauthorid | Yersin, H=7004236383 | en_HK |
| dc.identifier.issnl | 0897-4756 | - |