论文标题
笨重的柜台：增强金纳米簇的两光激发荧光
Bulky Counterions: Enhancing the Two-Photon Excited Fluorescence of Gold Nanoclusters
论文作者
论文摘要
荧光量子增加的荧光量子产率的量子量子量表受到荧光量子的量子量表吸引了广泛的研究兴趣。已经发现使用笨重的柜台组成的策略可极大地增强荧光。在这种交流中，我们将这个概念推向非线性光学制度。我们表明，通过适当选择笨重的柜台和溶剂，可以在〜600 nm处的两光弹性荧光（TPEF）信号增加30倍。这将对应于0.1至1克的TPEF横截面。
Increasing fluorescence quantum yields of ligand-protected gold nanoclusters has attracted wide research interest. The strategy consisting in using bulky counterions has been found to dramatically enhance the fluorescence. In this communication, we push forward this concept to the nonlinear optical regime. We show that by an appropriate choice of bulky counterions and of solvent, a 30-fold increase in two-photon excited fluorescence (TPEF) signal at ~600 nm for gold nanoclusters can be obtained. This would correspond to a TPEF cross section in the range of 0.1 to 1 GM.
