title: Ultrahigh vacuum deposition of organic molecules by electrospray ionization.
abstract: An electrospray apparatus for deposition of organic molecules on surfaces in ultrahigh vacuum is presented. The kinetic energy at the impact and mass to charge ratio of deposited ions can be controlled by an electrostatic quadrupole deflector and an in-line quadrupole mass spectrometer. With an ion funnel in the first two vacuum stages a high ion transmission is achieved. Experiments on porphyrin cations and deoxyribonucleic acid deposited on a Au(111) surface demonstrate the capabilities of the instrument.
authors: Institut für Experimentelle und Angewandte Physik, Christian-Albrechts-Universität zu Kiel, D-24098 Kiel, Germany. hamann@physik.uni-kiel.de
authors: Chr
authors: C
authors: Hamann
authors: R
authors: R
authors: Woltmann
authors: I-Po
authors: IP
authors: Hong
authors: N
authors: N
authors: Hauptmann
authors: S
authors: S
authors: Karan
authors: R
authors: R
authors: Berndt