Photoemission yield spectroscopy in air: Riken AC-2

Contact: violeta.toader [at] mcgill.ca (Violeta Toader) - Location: PP21

For usage and training information, please contact violeta.toader [at] mcgill.ca (Violeta Toader).

The Riken AC-2 PYSA has an open air system that can determine the Work Function (WF) and the Ionization Potential (IPs) for a variety of material types such as organic materials, semiconductors, and metals. Samples can be in multiple forms, including thin films, powders, and liquids.

Features

• Atmospheric‐pressure operation
• High‐precision measurement for counting photoelectrons one by one
• Noncontact and damage‐less measurement
• Ease of operation, measurable in a short time (about 5 min)
• Measures thickness of thin film and lubricating film
• Measures density of states in the vicinity of band gap

Applications

• OELD, OTFT, Organic film solar cell
• Photocatalyst
• Carbon nano tube, fullerene
• Carbon thin film, diamond thin film
• Cosmetics, nostrum, pharmaceutical products
• OPC
• Electrode, lead frame, silicon wafer, compound semiconductor wafer
• Metals for dlectrodes 

Specifications

• Electron detector:open counter
• Photoelectron measurement energy scanning range: 3.4 eV to 6.2 eV (364 nm to 200 nm)
• Light intensity measurement energy scanning range 3.4 eV to 6.2 eV (364 nm to 200 nm)
• Repeatability (standard deviation) Work function 0.02 eV (sample: metal plate)
• Measurement time: ca. 5 minutes for a work function measurement
• Maximum count rate: 2,000 CPS (counts per second)
• Maximum sample size: 50 mm × 50 mm
• Maximum sample thickness: 10 mm, 1‐point measurement
• Operating temperature / humidity range: 15°C to 35°C, 20% to 60% RH
• Measurement location: sample center