Solar Cell Spectral Performance Testing System
The solar cell spectral performance test system is a comprehensive experimental platform built on a highly modular design. Featuring flexible component configuration, the system accommodates diverse application scenarios ranging from fundamental research and development to production line calibration.
At its core, it enables integrated characterization of key spectral performances for various photovoltaic devices, including monocrystalline silicon, polycrystalline silicon, perovskites, dye-sensitized solar cells, as well as all types of single-junction and multi-junction thin-film solar cells. Beyond basic spectral responsivity (SR) measurement, the system can further accurately resolve the internal quantum efficiency (IQE) and external quantum efficiency (EQE) that govern the upper limit of conversion efficiency. Complementary spectral reflectance and transmittance measurements are also available to analyze light absorption and loss mechanisms.
Equipped with integrated automatic control and data acquisition modules, the system supports one-click rapid and repeatable measurement of critical parameters such as short-circuit current density (Jsc). It greatly improves testing efficiency and data reliability, serving as a complete and precise optoelectronic diagnostic tool for material research, process optimization and performance evaluation of solar cells.
Product Features
1. Adopts modular design, closely matching user requirements with cost-effectiveness and flexibility. It features wide applicability and facilitates easy upgrading, retrofitting and maintenance.
2. Optional high-power halogen tungsten lamp and high-power xenon lamp light sources; compatible with existing or user-specified light sources.
3. Proprietary spectroscopic system ensures excellent wavelength accuracy and repeatability, eliminates the influence of higher-order spectra with low stray light.
4. Equipped with weak signal processing capability to effectively improve signal-to-noise ratio and guarantee measurement accuracy.
5. Multiple optional sample holders with convenient clamping and reliable electrode contact, causing minimal interference to weak signal testing.
6. Self-developed high-performance weak signal processor; configurable with imported isolated DC preamplifier. It effectively isolates DC components generated by biased light irradiation on samples and realizes automatic switching of all control signals.
7. Matched with fully automated dedicated system software.
Test Items
● Suitable for testing solar cells made of various materials:
Monocrystalline silicon, polycrystalline silicon, amorphous silicon, gallium arsenide, indium gallium arsenide, indium phosphide, germanium, cadmium telluride, copper indium selenide, copper indium gallium selenide, copper zinc tin sulfide
● Dye-sensitized solar cells, quantum dot solar cells, organic solar cells, polymer solar cells, perovskite solar cells, etc.
● Suitable for testing solar cells with diverse structures:
Single-junction, multi-junction, PERC, HIT, IBC and other architectures, high-concentration types, thin-film cells, front-side and back-side configured cells
Technical Parameters
| Spectral Range | Optional within 200–2500 nm |
| Scan Interval | Integer value ≥1 nm (adjustable) |
| Scan Mode | Fully automatic |
| Short-circuit Current Density Repeatability | ＜0.3%~0.5% |
| Test Configuration | Flexible combination of AC / DC test modes and manual / motorized control modes |
| Optional Bias Light Source | 1~2 channels optional, for tandem cell measurement, dye-sensitized and perovskite cell testing |
| Optional Bias Voltage | ±10 V (or integrate customer’s existing programmable bias power supply) |
| Optional Temperature Controlled Stage Temperature range | 10–40 °C (±1 °C) |
| Monochromator Option | Double monochromator available |
| Monitoring Option | Dual optical path monitoring available |
