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Research Forum: Metrology and Control of Molecular Systems at the Liquid-Solid Electrical Interface

15.03.2015

Dr Peter NirmalrajPRESENTATION BY
Dr Peter Nirmalraj, IBM Research Laboratory, Zurich, Switzerland.

PRESENTATION TITLE
Metrology and Control of Molecular Systems at the Liquid-Solid Electrical Interface

ABSTRACT
Imaging, manipulation and local electrical readouts on molecular and atomic-scale materials is a well-established process using scanning probe microscopy operated under ultra-high vacuum at cryogenic conditions. To extract information on such systems with high spatial content but under standard laboratory conditions will have deeper technological impact.

This talk will be based on recent research progress at IBM Research-Zurich in the field of high-resolution microscopy and local-probe spectroscopy on novel nanoscale materials in liquids at room-temperature. We have developed a combinatorial approach to electronically decouple functional organic molecules from metals, selectively fingerprint electronic molecules, probe origin of nanoscale defects at metal-molecule interface and perform reliable spectroscopic measurements at a single-molecular level. In addition to single-molecule dynamics and spectroscopic measurements we extend our approach in resolving atomic positions and electronic band structure of single-atom thick materials such as graphene on metals. An overview of our activities in molecular electronics research, initial results in liquid-based probe microscopy and future directions in molecular nanotechnology will be presented during this talk.

ABOUT THE PRESENTER
Dr Peter Nirmalraj is a research scientist at IBM Research Laboratory-Zurich, where he works on the application of novel probe microscopy to explore fundamental materials and surface physics of low-dimensional nanomaterials. He joined IBM in 2011 after being awarded a Marie Curie Research Fellowship. He holds a doctoral degree in Nanoscale Physics from Trinity College Dublin where he performed conductance probe microscopy to investigate electrical synapses through random 1-D and 2-D networks and a Master of Science from Royal Institute of Technology, Stockholm, Sweden where he probed the bonding mechanism of planar organic molecules on semiconductor surfaces using scanning tunnelling microscopy and photoelectron spectroscopy (MAX-Lab, LUND, Sweden).

DATE:           Monday, 23 March 2015

TIME:            11h00

VENUE:        MSB-012 MSSI Building

REFRESHMENTS WILL BE PROVIDED AT 10h45

For further information, please contact:
Dr Damien Thompson, Tel. No: (061) 234705 or Email:  damien.thompson@ul.ie