Distance dependent fluorescence enhancement of silver nanowires deposited on AAO

Metal nanoparticls deposited on substrate are usually used for the enhancement of fluorescent molecules. In this article, AAO template was introduced into the reaction solution during the preparation of silver nanowires. Then the AAO template deposited with silver nanowires was suspended in RhB solution to study its fluorescence enhancement effect. The results showed that the uneven surface of AAO template caused a series of distances between silver nanoparticles and RhB molecules which were happen to be below 10 nm which can effectively enhance the fluorescence of RhB solution. Our results offer a potential substrate for metal enhanced fluorescent molecular carriers.283