BL02B

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Near-Ambient Pressure Photoelectron Spectroscopy End-station
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1. Energy Analyzer: R4000 HiPP3 with ultra-high electron energy resolution capability, energy resolution greater than 4000.
2. Argon Gun: For sample processing, 3KV, 10mA emission current.
3. Low Energy Electron Diffraction (LEED) Instrument: Intends to use the BDL600IR low energy electron diffraction spectrometer produced by OCI vacuum Microengineering Inc, with an electron energy range of 0-1000 eV, contraction distance of 100mm, equipped with a fluorescence screen and a baffle, and a working distance that can be specified by the user.
4. Laser Heater: A laser controller from PRE-VAC company, PID control, with a heating temperature range from 300K to 1500K, controllable manually or automatically.
5. Evaporators: Low and high-temperature evaporators from the Fermion company.
6. Mass Spectrometer: Mass range: 1-300amu; Detector: C-SEM/Faraday; Ion Source: Open ion source; Filament: Iridium; Vacuum requirement: <510^-4 hPa; Detection limit: 510^-15 mbar.
 
Photon In/Photon Out End-station
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1. Ultra-High Vacuum Chamber: Vacuum better than 5X10^-9 mbar.
2. Electron Yield Collection System: Femto current collector with background noise less than 1pA.
3. Fast Silicon Drift Detector: Capable of identifying fluorescence from all elements, with an energy resolution of about 100 eV, suitable for PFY mode measurements.
4. Chopper and Lock-in Amplifier: Can modulate light to convert the photocurrent signal into an alternating signal, filtering the signal from the electrochemical background through the lock-in amplifier, allowing TEY measurements under electrochemical conditions.
5. Laser Heater: Can adjust sample temperature from room temperature to 800℃.
6. Inert Atmosphere Glove Box: Allows sample transfer into the ultra-high vacuum chamber under a protective atmosphere.
7. Both end-stations are equipped with in situ electrochemical sample holders, enabling the characterization of battery materials and catalytic materials under operational conditions.