Thermochromic luminescence of sol−fel films based on copper Iodide clusters
| hal.structure.identifier | Laboratoire de physique de la matière condensée [LPMC] | |
| dc.contributor.author | TARD, Cédric | |
| hal.structure.identifier | Laboratoire de physique de la matière condensée [LPMC] | |
| dc.contributor.author | PERRUCHAS, Sandrine | |
| hal.structure.identifier | Laboratoire Hétéroéléments et Coordination [DCPH] | |
| dc.contributor.author | MARON, Sébastien | |
| hal.structure.identifier | Laboratoire Hétéroéléments et Coordination [DCPH] | |
| dc.contributor.author | LE GOFF, X. | |
| hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
| dc.contributor.author | GUILLEN, François | |
| hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
| dc.contributor.author | GARCIA, Alain | |
| hal.structure.identifier | Institut Lavoisier de Versailles [ILV] | |
| dc.contributor.author | VIGNERON, Jacky | |
| hal.structure.identifier | Institut Lavoisier de Versailles [ILV] | |
| dc.contributor.author | ETCHEBERRY, Arnaud | |
| hal.structure.identifier | Laboratoire de physique de la matière condensée [LPMC] | |
| dc.contributor.author | GACOIN, Thierry | |
| hal.structure.identifier | Laboratoire de physique de la matière condensée [LPMC] | |
| dc.contributor.author | BOILOT, Jean-Pierre | |
| dc.date.issued | 2008 | |
| dc.identifier.issn | 0897-4756 | |
| dc.description.abstractEn | The incorporation of copper iodide clusters in sol−gel silica has been investigated to prepare materials with original luminescent properties. The synthesis, structural characterizations, and optical properties of sol−gel films containing [Cu4I4L4] clusters, L = phosphine-based ligands, are reported. Clusters studied are [Cu4I4(PPh2(CH2)2Si(OCH2CH3)3)4] (C1), able to copolymerize with the silica matrix, and [Cu4I4(PPh2(CH2)2CH3)4] (C2) used as a reference for the characterizations. The luminescent films exhibit the optical properties of these clusters in accordance with XPS and NMR studies demonstrating their integrity in the gel matrix. The temperature dependence of light emission properties of clusters and films shows, for the first time for phosphine-based [Cu4X4L4] clusters, thermochromic luminescence with bright yellow luminescence at room temperature and purple emission at 77 K. As a result of weak Cu−Cu interactions, the two emissive states appear as highly coupled with a low energy barrier (2 kJ·mol−1), leading to a controlled thermochromism in a large temperature range. | |
| dc.language.iso | en | |
| dc.publisher | American Chemical Society | |
| dc.subject.en | Thermochromism | |
| dc.subject.en | Luminescence | |
| dc.subject.en | Films | |
| dc.subject.en | Sol-gel process | |
| dc.subject.en | Inorganic compounds | |
| dc.title.en | Thermochromic luminescence of sol−fel films based on copper Iodide clusters | |
| dc.type | Article de revue | |
| dc.identifier.doi | 10.1021/cm801780g | |
| dc.subject.hal | Chimie/Matériaux | |
| bordeaux.journal | Chemistry of Materials | |
| bordeaux.page | 7010-7016 | |
| bordeaux.volume | 20 | |
| bordeaux.issue | 22 | |
| bordeaux.peerReviewed | oui | |
| hal.identifier | hal-00351190 | |
| hal.version | 1 | |
| hal.popular | non | |
| hal.audience | Internationale | |
| hal.origin.link | https://hal.archives-ouvertes.fr//hal-00351190v1 | |
| bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Chemistry%20of%20Materials&rft.date=2008&rft.volume=20&rft.issue=22&rft.spage=7010-7016&rft.epage=7010-7016&rft.eissn=0897-4756&rft.issn=0897-4756&rft.au=TARD,%20C%C3%A9dric&PERRUCHAS,%20Sandrine&MARON,%20S%C3%A9bastien&LE%20GOFF,%20X.&GUILLEN,%20Fran%C3%A7ois&rft.genre=article |
Files in this item
| Files | Size | Format | View |
|---|---|---|---|
|
There are no files associated with this item. |
|||