Materials with color-tunable photoluminescence (PL) have attracted dramatically increasing interest in recent years, especially the tuning of both fluorescence (FL) and ultra-long organic room temperature phosphorescence (UOP). Herein, a series of polymer films are successfully fabricated by in situ copolymerization of carbazole derivatives, lanthanide complex, and acrylamide (AM). With a long lifetime of 2.82 s and a high quantum yield of 21.40%, these copolymers exhibit not only color-tunable FL from violet-red to blue, but also multicolor UOP scope from blue to chartreuse when the excitation wavelength is changed. Moreover, a nearly-white phosphorescence can also be observed by adjusting the excitation wavelength. Multiple information patterns with color-tunable FL and UOP emissions are captured, exhibiting promising potential in the information encryption and anti-counterfeiting fields.

中文翻译：

---

多组分共聚物的颜色可调荧光和超长有机室温磷光


近年来，具有颜色可调光致发光（PL）的材料引起了越来越多的兴趣，特别是荧光（FL）和超长有机室温磷光（UOP）的调谐。在此，通过咔唑衍生物、镧系络合物和丙烯酰胺（AM）的原位共聚成功制备了一系列聚合物薄膜。这些共聚物具有 2.82 s 的长寿命和 21.40% 的高量子产率，不仅表现出从紫红色到蓝色的颜色可调 FL，而且当激发波长改变时，还表现出从蓝色到黄绿色的多色 UOP 范围。此外，通过调节激发波长还可以观察到接近白色的磷光。捕获具有颜色可调 FL 和 UOP 发射的多种信息模式，在信息加密和防伪领域展现出广阔的潜力。