Patent · US Active

Molecular near-infrared to visible light upconversion luminescence

US9291561B2 · kind B2 · utility

2Cited by

0References

19Claims

0Family size

Assignee

SICPA HOLDING SA · CH

Inventors

Andreas Hauser · Bern, CH
Claude Piguet · Plan-les-Ouates, CH

Key dates

Filing date	Feb 14, 2012
Grant date	Mar 22, 2016
Priority date	—
Expiry date	Dec 4, 2032

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07F11/00
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

The present invention relates to a self-assembled helical metallic complex of formula (1): [M1M2M3(L1)3] (1) said metallic complex forming a triad donor (M1)/acceptor (M2)/donor (M3), wherein the efficiency of the intermolecular energy transfer between the pair of donors (M) and (M3) to the acceptor (M2) is from 30% to 70% and the L1 ligand-field strength of the donors (M1) and (M3) is at least 19000 cm−1.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.