ALOISA
Welcome to the Advanced Line for Overlayer, Interface and Surface Analysis
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Research Highlights![]() Intrinsic Nature of the Excess Electron Distribution at the TiO2 (110) Surface
![]() Donor–Acceptor Shape Matching Drives Performance in Photovoltaics
Shape-complementarity of donor and acceptor molecules drives self-assembly into an extended interface with a ball-and-socket structural motif, which increases both the active volume and exciton dissociation rates to improve the efficiency of organic solar cells. ![]() Quantifying Through-Space Charge Transfer Dynamics in π-Coupled Molecular Systems
This work probes the relation between the rate of charge delocalization and the strength of through-space π-π coupling in stacked aromatic systems. With resonant photoemission we determine charge transfer (CT) dynamics in two molecular bi-layer systems with different inter-ring separation, [2,2]paracyclophane (22PCP) and [4,4]paracyclophane (44PCP) adsorbed on Au(111), which allows us to quantitatively probe the carrier transport as a function of inter-ring coupling strength. A.Batra et al.; http://www.nature.com/ncomms/journal/v3/n9/full/ncomms2083.html
![]() Tuning the catalytic activity of Ag(110) supported Fe-phthalocyanine in the oxygen reduction reaction
A careful choice of the surface coverage of Fe-phthalocyanine (FePc) on Ag (110) around the single monolayer allows us to drive with high precision both the long-range supramolecular arrangement and the local adsorption geometry of FePc molecules on the given surface.We show that this opens up the possibility of sharply switching the catalytic activity of FePc in the oxygen reduction reaction in a reproducible way. F. Sedona, et al. http://www.nature.com/nmat/journal/v11/n11/pdf/nmat3453.pdf
![]() Covalent Bonding in Surface-Confined Ullmann Polymerization
Surface polymerization is of great interest as it enables the realization of graphene-like layers with tunable properties by simply modifying the architecture of the molecular building blocks used as precursors. We focus on some open points concerning the fundamentals of surface-catalyzed dehalogenative polymerization based on Ullmann coupling, widely used over the past decade to obtain 1D and 2D polymers on surfaces. M. Di Giovannantonio et al. ACS Nano 7 (9), 8190 (2013) ![]() Trimethyltin-Mediated Covalent Gold–Carbon Bond Formation
Spectroscopic evidence of C-Au bond formation, responsible for the “electron gateway” state, is shown in the process of TrimethylTin break-up on gold.
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User Area
Proposal SubmissionThe Users must contact in advance the beamline responsible to evaluate 1) the proposal feasibility and 2) the most appropriate Review Panel. The local contact can also help the Users to single out which alternative beamlines are better suited to their requirements. We invite Users and collaborators to discuss their proposals with the beamline staff before the submission deadline. |
Call for proposalsThe deadline for proposal submission for beamtime allocation is to be announced For the proposal submission, Users must first register themselves at the Elettra Virtual User Office at the link http://www.elettra.trieste.it/UserOffice/ |
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