Improve your OLED devices with easy lifetime testing
A long-term and low-cost solution to OLED lifetime testing
The Ossila OLED Lifetime System is designed to provide a long-term and low-cost solution to OLED lifetime testing, a necessary tool for optimising the stability of your OLED devices and minimising degredation over time. By combining an Ossila Source Measure Unit with specially designed test boards and intuitive software, the Ossila OLED Lifetime System is able to provide a robust and user-friendly platform for testing the performance of OLED devices.
The Ossila OLED Lifetime System is available with automated or manual pixel switching and is compatible with Ossila's substrate systems, making it easy to both fabricate and test OLED devices. Please refer to the table under the specifications tab if you are not sure which model you should choose.
If you are using one of our substrate systems, the OLED Lifetime System can be purchased with a multiplexing test board (just select the 'automated' variant of your choice in the drop-down list), which enables automatic pixel switching.
Just plug in the system, install the PC software, and you're ready to go! The intuitive interface and clean design makes the OLED Lifetime System easy-to-use, simplifying measurements of OLEDs.
Wide Measurement Range
The built-in source measure unit is capable of delivering voltages between -10 V and +10 V, with a maximum resolution of 333 μV, and measuring currents from as low as ±10 nA up to ±200 mA.
Measure Device Stability
By applying a constant voltage and measuring the response of the photodiode over an extended period of time, the stability of LEDs can be tracked.
Multiple System Types Available
Choose from our range of system types (automated or manual) depending on your requirements. If you are unsure which model to select, please contact us for advice.
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|±10 V Source Range||Yes||Yes|
|±333 μV Source Resolution||Yes||Yes|
|±200 mA Measurement Range||Yes||Yes|
|±10 nA Measurement Resolution||Yes||Yes|
|IV Curve Measurement||Yes||Yes|
|OLED Lifetime Measurement||Yes||Yes|
|For Use With S101, S211 or S171 Substrates||Yes||Yes|
|Automatic Device Switching||No||Yes|
|Multiple Devices Lifetime Measurement||No||Yes|
The automated test board controls a series of switches which can cycle through pixels without user intervention. The small form factor allows placement of the OLED Lifetime System in previously inconvenient places such as a glove box.
Devices are secured in the device hodler beneath a photodiode lid. The system takes advantage of the two built in source measure unit (SMU) channels to characterise the device. One SMU performs I-V operations via the test board, while the other SMU measures photodiode current.
Please note that while the photodiode exhibits a spectral sensitivity matched to the human eye, it is not calibrated for absolute luminosity measurements and only the photocurrent is measured.
Resources and Support
OLED Lifetime System Specifications
|Voltage Source||±333 μV to ±10 V|
|Current Measurement||±10 nA to ±200 mA|
|Substrate Size||20 mm x 15 mm|
|Substrate Compatibility - T2004A/T2005A||S101 (OLED substrates)|
|Substrate Compatibility - T2004B/T2005B||S211 (PV substrates)|
|Substrate Compatibility - T2004C/T2005C||S171 (Pixelated cathode substrates)|
|Overall Dimensions - Manual||
Source Measure Unit: Width: 125 mm; Height: 55
mm; Depth: 185 mm
Test Board: Width: 105 mm; Height: 40 mm; Depth: 125 mm
|Overall Dimensions - Automated||Width: 155 mm; Height: 73 mm; Depth: 317 mm|
System Selection Guide
The table below will help you determine which system is right for you. The manual version of the system has switches on the test board itself, which the user operates to measure the different pixels on an LED. The automated version of the system uses a multiplexing test board, which switches between these pixels automatically. Note, if you use one of our substrates listed in the table and another kind of substrate as well, we recommend manual pixel switching, as the test board can be detached and replaced with another one.
|Automated||Automated - S211 (T2005B)||Automated - S101 (T2005A)||Automated - S171 (T2005C)|
|Manual||Manual - S211 (T2004B)||Manual - S101 (T2004A)||Manual - S171 (T2004C)|
The current-voltage measurement is controlled using intuitive and user-friendly PC software. All of the measurements can be fully customised, allowing you to tailor the software to your experiment.
With the PC software, you can:
- Perform current-voltage measurements anywhere between -10 and 10V.
- Take high resolution measurements, with voltage increments as low as 333 µV.
- Manage the experiment more directly, with custom settle times between applying voltage and measuring current.
- Measure relaive illumination intensity using the built-in photodiode.
The software has 2 measurement tabs: Characterisation, and Lifetime. 'Characterisation' performs I-V measurements of LEDs whilst measuring the current response of the built-in photodiode, and the 'Lifetime' tab enables you to set a constant voltage and measure the current response of the LED and photodiode over an extended time.
Data is saved to .csv (comma-separated values) files, which are formatted to be easy to read and analyse. Settings are saved along with the data, making it easier to keep a record of the parameters used for each experiment. Additionally, settings profiles can be saved for each different measurement type, allowing you to easily perform repeat measurements or use particular configurations.
Key Software Features
- Simple and intuitively-designed interface
- Data saved to .csv file
- Perform accurate I-V measurements
- Measure current relative illumination intensity over extended times.
- Save and load settings profiles
* Luminosity measurements are relative and based upon the measured photodiode current and are not absolute.
|Operating System||Windows 10 (32-bit or 64-bit)|
|CPU||Dual Core 2 GHz|
|Available Hard Drive Space||127 MB|
|Monitor Resolution||1440 x 960|
|Connectivity||USB 2.0, Ethernet (requires DHCP)|
To the best of our knowledge the information provided here is accurate. However, Ossila assume no liability for the accuracy of this page. The values provided are typical at the time of manufacture and may vary over time and from batch to batch. All products are for laboratory and research and development use only, and may not be used for any other purpose including health care, pharmaceuticals, cosmetics, food or commercial applications.