The Ossila LED Measurement System is a compact, all-in-one instrument for characterizing new light-emitting devices, including OLEDs and QLEDs. It runs current-voltage-luminance (IVL or JVL) sweeps while built-in light sensors record illuminance, luminance and white count, and the software then works out current efficiency and power efficiency automatically.
A lifetime mode holds the device at a constant voltage and follows its performance over an extended period, supporting operational stability checks and stress testing. The T2005E version accepts 25 mm square substrates (S2006), while the T2005B version takes 20 x 15 mm substrates (S211). By exchanging the riser board, adding an illumination source and using the separate Solar Cell Testing Software, the same unit can also perform solar cell I-V testing.
The PC software allows sweeps between -10 and 10 V with voltage steps as small as 1 mV, custom settle times, and reusable settings profiles. Results are stored as .csv files together with the settings used. This system replaces the earlier Ossila OLED Lifetime Measurement System.
- Current-voltage-luminance sweeps of newly fabricated LEDs, OLEDs and QLEDs.
- Calculation of current efficiency and power efficiency for light-emitting devices.
- Constant-voltage lifetime assessment, operational stability tests and stress testing of LEDs.
- Solar cell I-V testing after swapping the riser board and adding an illumination source.
- Illuminance and white count measurements using the integrated sensors.
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- Product code: T2005E3
- Wavelength Range: 400 nm – 750 nm (white count only: 400 nm – 1050 nm)
- Substrate Compatibility (T2005E): S2006 (25 mm Square, PV and OLED)
- Substrate Compatibility (T2005B): S211 (20 x 15 mm, PV and OLED)
- Overall Dimensions (W x H x D): 151 mm x 50 mm x 300 mm
- Voltage Source Range / Accuracy: ±10 V / ±10 mV
- Voltage Source Precision / Resolution: 333 µV / 170 µV
- Voltage Measurement Precision / Resolution: 50 µV / 10 µV
- Current Measurement Ranges: ±200 mA, ±20 mA, ±2 mA, ±200 µA, ±20 µA
- Current Resolution (lowest range): 0.1 nA
- Current Burden: <20 mV
- Illuminance Ranges: 100 klx, 5000 lx, 500 lx
- Illuminance Accuracy: ±10%
- Operating System: Windows 10 or 11 (32-bit or 64-bit)
- Connectivity: USB 2.0, Ethernet (requires DHCP)
- In the Box: LED Measurement System, USB-B cable, 24 VDC power adapter, USB drive with QC test data, LED IVL Software
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