SISSY I@EMIL

SISSY I is part of the Energy Materials in-situ laboratory EMIL, which is a unique infrastructure designed to allow for in-system, in-situ, and operando X-ray analysis of an unprecedented range of materials and devices for energy conversion and storage. The interchange of samples between the instrument and all tools allows novel multipart experiments to be performed. The SISSY I instrument features an angle-resolved photoelectron analyzer for PES/HAXPES and fluorescence detectors for XAS and is attached to an extensive UHV “backbone” containing off-synchrotron analysis chambers and large-scale deposition tools.

The EMIL beamline has two branches – soft (80 eV – 1800 eV) and hard (1800 eV – 10 keV) x-rays – which converge at the SISSY I instrument.

Selected Applications:

• In-system deposition (via sputtering, evaporation, other methods) followed by automatic UHV transfer to characterization systems
• Analysis of Rh segregation in an oxidized Ga layer
• Monitoring beam damage and influence of voltage and light on a in situ operated perovskite solar cell
• Change of a SiOx layer due to extensive annealing up to 900°C for 30 min
• Note that x-ray standing wave experiments are currently not specifically supported

Hemispherical electron analyser of the SISSY I endstation at the EMIL beamline. © Volker Mai /HZB

Methods

HAXPES, XPS, NEXAFS, XRF

Remote access

not possible

The permanently installed SISSY I instrument can access the full energy range of the EMIL system (i.e., both soft x-ray and hard x-ray beamlines) at the same focal point. The primary technique is x-ray photoemission spectroscopy, recorded using a Scienta EW4000 electron analyzer. The chamber also contains a Bruker Si-drift detector for XRF measurements. The automated 5-axis manipulator allows heating (to ~1000°C), cooling with liquid N2, and application of electronic bias to samples. 

The inatrument is connected to the SISSY lab's UHV backbone, allowing automated transfer to and from the attached deposition chambers, as well as to UHV sample storage chambers and three load locks. One of the load locks is connected directly to the UHV system.