Litos is an advanced solar cell and LED lifetime measurement system. It has 32 parallel stressing channels distributed over 4 airtight weathering chambers. Each sample has individual temperature and illumination control. Wide range of stressing techniques inside a highly-controlled experimental environment, full automation and a possibility of interfacing Litos with Paios for in-depth degradation analysis, make it a primary choice for researchers that want to understand the degradation behavior of organic, perovskite and quantum-dots based LEDs and solar cells.
We offer a flexible design compatible with samples of various layout. Both top and bottom-emitting LEDs are compatible.
PV, LED and hybrid configurations available.
Design customized to the specific sample layout of the customer (multiple layouts possible also with the same system)
Modular: connect several systems together for device serial analysis
Compatible with atmosphere-controlling equipment
User-friendly software for automatic measurement control and parameter extraction
|Maximum current||20 mA /channel|
|Full temperature control||0 - 150°C|
|Sample size||Up to 2 inch|
Constant current, constant light, constant voltage
Bottom and top emitter- compatible
In-situ spectrometer available (extra module)
Patented OLED accelerated ageing and lifetime estimation integrated
For Solar Cells
Maximum power point tracking, constant voltage/current
Two-colour LED illumination with UV (configurable)
>10 sun equivalent illumination for accelerated testing
In-situ UV-vis absorption possible for bleaching detection (extra spectrometer module)
In-situ PL and EL measurements possible
In combination with Paios, a full device characterization can be performed automatically:
Current-Voltage (I-V) characteristics.
Transient measurements (CELIV, DLTS, TPV, TPC, ...).
Impedance spectroscopy / CV.
IMPS / IMVS (for solar cells).
All measurements can be performed as a function of temperature and ambient conditions.