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Soft-Landing of Complex Ions on Surfaces


EMSL Project ID
19594

Abstract

Interaction of ions with surfaces is an area of active fundamental research in surface science relevant to a broad range of other scientific disciplines supported by the DOE Office of Science such as materials science, mass spectrometry, imaging and spectroscopy. The proposed research will specifically focus on fundamental understanding of reactive and non-reactive deposition of hyperthermal (1-100 eV) peptide, protein and polymer ions on organic surfaces under ultrahigh vacuum conditions. Two major processes are dominant for this range of collision energies: reactive and non-reactive scattering of ions and ion loss on the surface as a result of neutralization or soft-landing of projectile ions. SL and a related process of reactive landing (RL) of ions, in which ion is covalently attached to the surface, are unique processes that occur during collisions of low-energy ions with self-assembled monolayer (SAM) surfaces. Our recent studies on fundamental aspects of SL of peptide ions provide solid support for this work.

Project Details

Project type
Large-Scale EMSL Research
Start Date
2006-08-18
End Date
2009-09-30
Status
Closed

Team

Principal Investigator

Robert Cooks
Institution
Purdue University

Team Members

Michael Lysonski
Institution
Carleton College

Qichi Hu
Institution
Pacific Northwest National Laboratory

Michael Goodwin
Institution
Purdue University

Wen-Ping Peng
Institution
National Dong Hwa University

Zihua Zhu
Institution
Environmental Molecular Sciences Laboratory

Peng Wang
Institution
Pacific Northwest National Laboratory

Zhibo Yang
Institution
University of Colorado at Boulder

Jason Green
Institution
Purdue University

Omar Hadjar
Institution
O.I. Analytical

Jean Futrell
Institution
Pacific Northwest National Laboratory

Julia Laskin
Institution
Purdue University

Scott Lea
Institution
Environmental Molecular Sciences Laboratory

Paul Gassman
Institution
Pacific Northwest National Laboratory