| dc.contributor.author | Omwoma, Solomon | |
| dc.contributor.author | Lagat, Silah C. | |
| dc.contributor.author | Lalah, Joseph O. | |
| dc.date.accessioned | 2018-02-02T07:49:03Z | |
| dc.date.available | 2018-02-02T07:49:03Z | |
| dc.date.issued | 2017-12 | |
| dc.identifier.uri | https://www.sciencedirect.com/science/article/pii/S0022231317312632 | |
| dc.identifier.uri | https://doi.org/10.1016/j.jlumin.2017.12.052 | |
| dc.identifier.uri | http://62.24.102.115:8080/xmlui/handle/123456789/1213 | |
| dc.description.abstract | The polyoxometalate (POM) anion of europium (III) decatungstate [EuW10O36]9-exhibits great luminescence quantum yields of approximately 67% but suffers reduced red light emissions that are due to the low 5D0→7F2 transmissions. Fine tuning the microenvironment around [EuW10O36]9- anion through intercalation into different compositions of layered double hydroxides (LDHs) materials, greatly enhances the 5D0→7F2 transmissions. The positive nanosheets in LDHs provide a conducive microenvironment for strong transitions of 5D0→7F2 to occur. The ratio I(5D0→7F2)/I(5D0→7F1) for the observed intensities vary from 0.44 for [EuW10O36]9-ion to 14.08, 6.20, 1.75 and 1.59 in Mg2Al-EuW10O36, LYbH-EuW10O36, Zn2Al-EuW10O36 and LEuH-EuW10O36 materials respectively (Mg2Al = magnesium aluminum LDHs, Zn2Al = Zinc aluminum LDHs, LYbH = layered ytterbium hydroxide LDHs, and LEuH = layered europium hydroxide LDHs). As such, these materials can find a wide application in processes that require the red light luminescence. | en_US |
| dc.description.sponsorship | https://doi.org/10.1016/j.jlumin.2017.12.052 | en_US |
| dc.language.iso | en | en_US |
| dc.publisher | Elsevier | en_US |
| dc.relation.ispartofseries | Volume 196, April 2018, Pages 294-301; | |
| dc.subject | Photoluminescene | en_US |
| dc.subject | Layered double hydroxides | en_US |
| dc.subject | Euopium(III)decatungstate ion | en_US |
| dc.title | Fine tuning the microenvironment of [EuW10O36]9- anion leads to the large enhancement of the red light luminescence | en_US |
| dc.type | Article | en_US |
