Jennings T L, Singh M P, Strouse G F
Department of Chemistry and Biochemistry, Florida State University, Tallahassee, Florida 32306-4390, USA.
J Am Chem Soc. 2006 Apr 26;128(16):5462-7. doi: 10.1021/ja0583665.
The fluorescence behavior of molecular dyes at discrete distances from 1.5 nm diameter gold nanoparticles as a function of distance and energy is investigated. Photoluminescence and luminescence lifetime measurements both demonstrate quenching behavior consistent with 1/d(4) separation distance from dye to the surface of the nanoparticle. In agreement with the model of Persson and Lang, all experimental data show that energy transfer to the metal surface is the dominant quenching mechanism, and the radiative rate is unchanged throughout the experiment.
研究了分子染料在距直径1.5纳米金纳米颗粒不同距离处的荧光行为与距离和能量的关系。光致发光和发光寿命测量均表明，猝灭行为符合染料到纳米颗粒表面1/d(4)的分离距离。与佩尔松和朗的模型一致，所有实验数据表明，向金属表面的能量转移是主要的猝灭机制，并且在整个实验过程中辐射速率保持不变。
