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Overview

The RKI AC-2S is a photoemission yield spectrometer in air (PYSA) by Riken Keiki that measures the work function of metals and the ionization potential of semiconductors and organic materials without a vacuum chamber. A low-intensity UV beam and an open electron counter give a reading in about 5 minutes with 0.02 eV repeatability.

  • Measures work function and ionization potential in air: no vacuum, samples go in and out in seconds
  • Standard work function measurement in about 5 minutes (4.2 to 6.2 eV scan, 0.1 eV steps)
  • Repeatability 0.02 eV standard deviation on a gold plate
  • Low-intensity UV limits sample damage; open counter reads up to 4,000 electrons per second
  • Multi-point measurement of up to 4 points and repeated measurement, run automatically
  • AC-2S Pro α: down to 2.0 eV for anode and low work function materials, plus high UV intensity
  • AC-2S Pro β: 0.4 x 0.4 mm micro spot for small features such as electrodes on PCBs
  • Pro models add a heated stage to 100 °C, film thickness measurement and a long-life LDLS light source

A dry-air compressor, powder sample trays and spare detector, optical fiber and D2 lamp are available. Request a quote for pricing and availability.

Specifications

Measuring Principle
Photoemission yield spectroscopy in air (PYSA), low-energy electron count detector
Energy Scanning Range
AC-2S and Pro β: 3.4 - 6.2 eV (364 - 200 nm); Pro α: 2.0 - 6.2 eV (620 - 200 nm)
Repeatability
Work function 0.02 eV standard deviation (Au plate)
Measurement Time
Approx. 5 min (4.2 - 6.2 eV, 0.1 eV steps, 5 s per step)
Maximum Count Rate
4,000 cps
UV Lamp
AC-2S: deuterium (D2) lamp; Pro α / Pro β: laser-driven light source (LDLS)
Maximum Light Intensity (5.9 eV)
AC-2S: 500 nW or higher; Pro α: 2,500 nW or higher; Pro β: 200 nW or higher
UV Spot Size
AC-2S and Pro α: up to 4 x 4 mm; Pro β: up to 0.4 x 0.4 mm
Spectrometer
Grating-type monochromator
Sample Size
50 x 50 mm max., 10 mm thick max.
Sample Stage
AC-2S: 115 x 122 mm; Pro α / Pro β: 120 x 122 mm heated stage (to 100 °C)
Multi-Point Measurement
Up to 4 points, automatic
Dry Compressed Air Supply
0.1 - 0.2 MPa; 0.5 L/min measuring, 2.0 L/min purging (compressor optional)
Operating Conditions
15 - 35 °C, up to 60 % RH, no condensation
Power
100 - 240 V AC, 50/60 Hz, 5 A max.
Dimensions (AC-2S)
Light source unit 480 x 317 x 450 mm; measuring unit 465 x 360 x 450 mm (W x H x D)
Weight (AC-2S)
Light source unit approx. 25 kg; measuring unit approx. 31 kg
Supplied With
Light source unit, measuring unit, PC and display, measurement / analysis software, optical fiber, detector, cables

Documents

In-house service

Calibration and repair

Send it to our Montreal service team. We evaluate the instrument and send a detailed quote before any work starts.

Start a service request

Questions, answered

How fast will I get a price?

Send the quote request and a specialist replies within 4 business hours, Monday to Friday, 8:00 to 4:30 ET.

Can we pay on account or by purchase order?

Yes. With established credit, terms are Net 30 days, and you can send your purchase order with the quote request. We also accept Visa, Mastercard and American Express.

How is shipping charged?

On quotes and account orders, freight is F.O.B. Montréal: the carrier charge is worked out at shipment from the packed weight and dimensions, and added to your invoice. In-stock items can also be picked up the same day in Montréal (8605 rue du Champ-d'Eau).

Can I return it?

Yes, within 30 days of purchase, with a return authorization number from customer service first. A 25% restocking fee applies, unless it is a defect covered by the warranty. Special orders, hazardous materials, flammable liquids and gases can't be returned. Return policy

Can ERE calibrate or repair it?

Yes. Our Montréal service shop calibrates and repairs it in-house. Request service

What warranty does it carry?

The manufacturer's warranty applies. The exact terms are in the warranty document. Read the warranty

Since 1994Supplying labs and field crews
30,000+Customers across North America
AuthorizedBrand distributor
4 hrTypical quote turnaround