申请人:Lowe Christiane
公开号:US20060108564A1
公开(公告)日:2006-05-25
Embodiments of the present invention are directed toward a photoluminescent article comprising at least one host material and at least one color tunable photoluminescent dye. In certain embodiments, the emission spectrum of the at least one tunable photoluminescent dye may be dependent on the supramolecular architecture of the material. The photoluminescent emission spectrum of the dye is capable of being shifted by subjecting the article to an external stimuli such as, but not limited to, a mechanical deformation, a temperature change, aging of the article, a pressure change, exposure to a chemical compound. In specific embodiments, the color tunable photoluminescent dye is an oligo(phenylene vinylene) compound, such as, but not limited to, 1,4-Bis-(α-cyano-4-methoxystyryl)-benzene, 1,4-bis-(α-cyano-4-methoxystyryl)-2,5-dimethoxybenzene, and 1,4-bis-(α-cyano-4-(2-ethylhexyloxystyryl)-2,5-dimethoxybenzene and 2,5-bis-(α-cyano-4-methoxystyryl)-thiophene. A further embodiment of the invention is method of determining a degree of mechanical deformation, a temperature change, aging of the article, a pressure change, exposure to a chemical compound on an article.
本发明的实施例针对一种光致发光制品,该制品包含至少一种主材料和至少一种颜色可调的光致发光染料。在某些实施例中,至少一种可调光致发光染料的发射光谱可能取决于材料的超分子结构。染料的光致发光发射光谱能够通过使物品受到外部刺激而改变,例如但不限于机械变形、温度变化、物品老化、压力变化、接触化合物等。在具体的实施方案中,颜色可调的光致发光染料是低聚(亚苯基乙烯)化合物,例如但不限于 1,4-双(α-氰基-4-甲氧基苯乙烯基)-苯、1,4-双-(α-氰基-4-甲氧基苯乙烯基)-2,5-二甲氧基苯,以及 1,4-双-(α-氰基-4-(2-乙基己氧基苯乙烯基)-2,5-二甲氧基苯和 2,5-双-(α-氰基-4-甲氧基苯乙烯基)-噻吩。本发明的另一个实施方案是确定物品机械变形程度、温度变化、物品老化、压力变化、接触化合物程度的方法。