White light emission and spectroscopic properties of Dy3+ ions doped bismuth sodiumfluoroborate glasses for photonic applications

Mariyappan, M.; Arunkumar, S.; Marimuthu, K.

doi:10.1016/j.jallcom.2017.06.244

Cited by 45 publications

(1 citation statement)

References 55 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…is the inverse slope (isotemperature line) and x e = 0.332, y e = 0.186, the calculated CCT value of GBA and BABA crystals are 7947.42 K and 9891.32 K [40]. From the CCT values, we can determine two major regions of natural white light, namely warm-white (≤ 3700K), neutral or pure white (between 3700 to 5000K) and cool-white (≥ 5000K) [41]. Thus both the compounds exhibited an emission at cool-white region.…”

Section: Chromaticitymentioning

confidence: 99%

Supramolecular Assembly of Guanidinium benzilate and Benzylammonium benzilate — Structural and Spectroscopic (FT-IR, UV-Vis and Photoluminescence) Analyses

Sankar

Sudharsanan

Seetharamiah

et al. 2022

Preprint

View full text Add to dashboard Cite

Guanidinium benzilate (GBA) and benzylammonium benzilate (BABA) have been prepared from guanidinium carbonate and benzylamine/benzilic acid. GBA has interionic, intraionic, and intermolecular hydrogen bondings giving a three-dimensional supramolecular assembly. The carboxylate ion is present in the resonance form with C-O distances are of 1.242 and 1.246Å in GBA, whereas in non-resonance form with C-O distances of 1.262 and 1.245Å in BABA. In BABA, an inverted dimer with inter ionic hydrogen bonding exist as a dimer with supramolecular assembly due to intermolecular hydrogen bonding between the ion pairs. So the counter cation decides the resonance form of the carboxylate ion, hydrogen bonding network and the disposition of the phenyl rings in the benzilate and benzyl moiety. The IR, 1H NMR and 13C NMR spectral data have been interpreted using the crystal structure data and by the comparison between the two similar derivatives. Both the compounds exhibit the emission at 442 nm (Blue) and 547.2 nm (Green) on excitation. Chromaticity indicated excellent emission characteristics of both GBA and BABA which is necessary for OLED applications.

show abstract

Section: Chromaticitymentioning

confidence: 99%