Spectroscopy: Photoelectron Spectrometer in Air

What is it?
Quick and rough way to estimate work-function or valence band edge, based on the onset of photoelectron emission under UV illumination. Similar to UPS but measurement is done in dry air; vaccuum not required. Faster turnaround than UPS, but data is less detailed.

Manufacturer: Riken Keiki

Model Name: AC-2

Applications: Work function of conductors. Valence band edge of semiconductors.

Instrument Overview: Instrument Overview: It illuminates the sample IN AIR with monochromatic UV light and counts the photoelectron yield. Photoelectron yield is plotted against UV photon energy. Similar to UPS but sample is held in air; vaccuum not required.

Technical features and specifications:
Technical features and specifications: UV photon energy: 3.4-6.2 eV, in steps of 0.05 eV. Typical measurement time: 45mins per sample. Sample size requirement: 2 cm x 2 cm minimum.

Charges:
NA

Instrument Manufacturer URL: https://www.rkiinstruments.com/product/model-ac-2/

Detailed Specifications:
NA