Mr. Abdulkhaleq Almansaf

Mr. Abdulkhaleq Almansaf |Clyto Access

King Abdullah University of Science and Technology, Saudi Arabia

Poster Presentation

Expertise: ​Photo-physics of Nanoscale Materials, Ultrafast & Non-Linear Optics, Material Science, and Transient Spectroscopy

Biography:

Presentation:

Title: The impact of Au doping on the charge carrier dynamics at the interfaces between cationic porphyrin and silver nanoclusters

Abstract:

We explore the impact of Au doping on the charge transfer dynamics between the positively charged meso units of 5, 10, 15, 20-tetra (1-methyl-4-pyridino)-porphyrin tetra (p-toluene sulfonate) (TMPyP) and negatively charged silver nanoclusters (Ag29 NCs). Our transient absorption (TA) spectroscopic results demonstrate that the interfacial charge transfer, the intersystem crossing and the triplet state lifetime of porphyrin can be tuned by the doping of Au atoms in Ag29 NCs. Additionally, we found that the electrostatic interaction between the negative charge of the cluster and the positive charge on the TMPyP is the driving force that brings them close to each other for complex formation and subsequently facilitates the transfer process.

Related Conferences :

2nd world summit on Nanotechnology and Nanomedicine Research