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Measurement Aperture Mask, 25mm Square

Substrates and Fabrication

Product Code E2002A1
Price $124 ex. VAT

Measurement aperture masks for patterned ITO substrates.

Precise illumination for accurate reporting.


The S2006 aperture mask is part of Ossila's award winning prototyping platform for photovoltaic devices.

Electrochemically-etched holes provide accurate area definition for solar cell illimunation or OLED luminance measurements, preventing over or under-estimation of device performance.

For use with our 25mm square ITO substrates (S2006C1).

Measurement aperture masks 25x25

General Specifications


Material Stainless steel
Outer Dimensions 25mm x 25mm x 0.2mm
Aperture Dimensions 7.4mm x 5.4mm (39.96mm2)

Four Pixel Aperture Mask


The holes in the aperture mask align with the centre of the device pixels, creating four illumination areas of 39.96mm2. There is a border of 0.6mm between the edge of the aperture and the edge of the pixel. This helps to reduce edge effects during device characterisation.

Four Pixel Aperture Mask

Resources and Support


Making OLEDs and OPVs: A Quickstart Guide

Organic photovoltaic cells (OPVs) or organic light emitting diodes (OLEDs) can be easily manufactured using Ossila's pre-patterned ITO substrates and a few simple spin coating and evaporating steps. This article, and its companion video, will guide you through this process and offer hints and tips for how to get the best devices.

Learn more...
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