represents an extremely attractive concept. Promising fundamental and practical applications may be derived from such a photon‐saving principle. With this aim in mind, we have prepared fluorescent photochromic organic nanoparticles (NPs), showing bright red emission, complete ON–OFF contrast with full reversibility, and excellent fatigue resistance. Most interestingly, upon successive UV and visible light
用最小的光子控制或切换来自大量分子的光信号代表了一个非常诱人的概念。这种节省光子的原理可能会带来有希望的基础和实际应用。为此,我们制备了荧光光致变色有机纳米颗粒(NPs),显示出鲜红色的发射光,具有完全可逆性的完全ON-OFF对比度,以及出色的抗疲劳性。最有趣的是,在连续的紫外线和可见光照射下,NP在非常低的光致变色转化
水平(<5%)下表现出完全的荧光猝灭和恢复,导致仅一个转化的光致变色分子的荧光转化为420±20。