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http://hdl.handle.net/10773/19604
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DC Field | Value | Language |
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dc.contributor.author | Nolasco, Mariela M. | pt |
dc.contributor.author | Vaz, Patricia M. | pt |
dc.contributor.author | Vaz, Pedro D. | pt |
dc.contributor.author | Ferreira, Rute A. S. | pt |
dc.contributor.author | Lima, Patricia P. | pt |
dc.contributor.author | Carlos, Luis D. | pt |
dc.date.accessioned | 2017-12-07T19:18:26Z | - |
dc.date.issued | 2014 | pt |
dc.identifier.issn | 0095-8972 | pt |
dc.identifier.uri | http://hdl.handle.net/10773/19604 | - |
dc.description.abstract | The -substituted -diketonate [Ln(3Cl-acac)(3)(H2O)(2)] [Ln=Tb, Gd] complexes (with 3Cl-acac(-) being 3-chloro-2,4-pentanedionate) were characterized by elemental analysis, infrared, ultraviolet (UV)-visible and photoluminescence spectroscopies. For comparison purposes regarding photoluminescence, the well-known [Tb(acac)(3)(H2O)(2)] complex was also synthesized. By considering the phosphorescence spectra of [Gd(3Cl-acac)(3)(H2O)(2)], the effect of chloride replacement of hydrogen on the triplet state energy of the 3Cl-acac ligand was revealed. To support the interpretation and rationalization of the experimental results, Time-dependent DFT calculations were performed on Tb(3Cl-acac)(3)(H2O)(2). Additionally, the possibility of Tb(3Cl-acac)(3)(H2O)(2) to be used as potential green-emitting phosphor material for solid-sate light emitting diodes was evaluated. A prototype was successfully fabricated coating a near-UV LED (370nm) with the Tb(3Cl-acac)(3)(H2O)(2) complex. | pt |
dc.language.iso | eng | pt |
dc.publisher | TAYLOR & FRANCIS LTD | pt |
dc.relation | info:eu-repo/grantAgreement/FCT/COMPETE/132936/PT | pt |
dc.rights | restrictedAccess | por |
dc.subject | RARE-EARTH | pt |
dc.subject | ENERGY-TRANSFER | pt |
dc.subject | QUANTUM YIELD | pt |
dc.subject | LUMINESCENCE | pt |
dc.subject | COMPLEX | pt |
dc.subject | PHOSPHORS | pt |
dc.subject | DENSITY | pt |
dc.subject | LIGAND | pt |
dc.subject | DIPHENYLETHYNE | pt |
dc.subject | TERBIUM(III) | pt |
dc.title | A green- emitting a- substituted a- diketonate Tb3+phosphor for ultraviolet LED- based solid- state | pt |
dc.type | article | pt |
dc.peerreviewed | yes | pt |
ua.distribution | international | pt |
degois.publication.firstPage | 4076 | pt |
degois.publication.issue | 23-24 | pt |
degois.publication.lastPage | 4089 | pt |
degois.publication.title | JOURNAL OF COORDINATION CHEMISTRY | pt |
degois.publication.volume | 67 | pt |
dc.date.embargo | 10000-01-01 | - |
dc.relation.publisherversion | 10.1080/00958972.2014.969722 | pt |
dc.identifier.doi | 10.1080/00958972.2014.969722 | pt |
Appears in Collections: | CICECO - Artigos |
Files in This Item:
File | Description | Size | Format | |
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A green-emitting α-substituted β-diketonate Tb3+ phosphor for ultraviolet LED-based solid-state lighting_10.108000958972.2014.969722.pdf | 928.84 kB | Adobe PDF | ![]() |
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