Optical Enhancement and Structural Properties of a Hybrid Organic鈭扞norganic Ternary Nanocomposite
详细信息 查看全文
- 作者：Valentina Villari ; Antonino Mazzaglia ; Mariachiara Trapani ; Maria Angela Castriciano ; Giovanna de Luca ; Andrea Romeo ; Luigi Monsu虁 Scolaro ; Norberto Micali
- 刊名：Journal of Physical Chemistry C
- 出版年：2011
- 出版时间：April 7, 2011
- 年：2011
- 卷：115
- 期：13
- 页码：5435-5439
- 全文大小：789K
- 年卷期：v.115,no.13(April 7, 2011)
- ISSN：1932-7455
文摘
The assembly among gold nanoparticles, the water-soluble tetrakis(4-sulfonatophenyl)porphyrin and spermine, in acidic solution, forms a hybrid nanocomposite exhibiting scattering enhancement. A scaling law of a cluster鈭抍luster aggregate of metal nanoparticle composites, with 0.3 as optical spectral dimension, is observed in agreement with theoretical models. In this ternary composite, spermine acts as a sticky agent for gold nanoparticles and porphyrins, and the dipolar coupling between porphyrins is responsible for the localization of the electric field giving rise to the scattering enhancement.