Perovskite Solar Cell Module IV Tester

The Perovskite Solar Cell Module IV Tester is a core detection instrument that employs a high-precision pulsed light source and a rapid data acquisition system. It is specifically designed to measure the current-voltage characteristic curve (I-V Curve) of perovskite solar cells or modules under simulated light conditions, thereby accurately calculating key performance parameters such as photoelectric conversion efficiency (PCE), open-circuit voltage (Voc), short-circuit current (Isc), fill factor (FF), and maximum output power (Pmax).

Product Features

• Millisecond-Level High-Speed Pulsed Testing: Utilizes a high transient response pulsed light source (pulse width ≤100ms) and microsecond-level data acquisition system to complete full-point scanning before perovskite material experiences photo-induced degradation, preventing efficiency measurement distortion and ensuring reliable data.

• Precise Spectral Match to Sunlight: Customized AM1.5G standard spectral light source (300–1200nm) with A+ grade spectral match (IEC 60904-9 standard), specifically enhanced UV-visible light output to accurately simulate the light absorption characteristics of perovskite cells.

• 4-Quadrant High-Precision Electrical Parameter Measurement: Supports wide-range testing (±20V/±2A) with voltage resolution up to 0.1mV and current resolution of 0.1μA. Fill factor (FF) calculation error <0.5%, meeting the high-precision capture of weak signals from perovskite modules.

• Integrated Environmental Simulation & Intelligent Analysis: Incorporates a temperature control platform (-40℃ to +85℃) and irradiance auto-calibration module. Combined with AI-driven software, it automatically generates I-V/P-V curves, efficiency distribution maps, and degradation rate analysis reports, enabling standardized full-process evaluation.

Product Applications

• 1. Laboratory Frontier R&D

  ▶ Application Scenario: New material development, tandem cell structure optimization in universities and research institutions
  ▶ Core Value: Avoids photo-degradation interference through millisecond pulsed testing, precisely quantifies the photoelectric conversion efficiency limits of new perovskite compositions (e.g., all-inorganic perovskite), and provides repeatable experimental data for top-tier publications.

• 2. Pilot Line Process Validation

  ▶ Application Scenario: Coating/vapor deposition process debugging, encapsulation material reliability testing
  ▶ Core Value: Simulates outdoor extreme environments with an integrated temperature control platform (-40℃ to 85℃), rapidly detects IV curve degradation rates of modules under damp heat/freeze-thaw cycles, and identifies process defects (e.g., electrode corrosion).

• 3. Production Line Final Quality Inspection

  ▶ Application Scenario: Module batch grading, power calibration, and warranty certification
  ▶ Core Value: AI-driven automatic generation of EL images and efficiency distribution maps, completes single-unit testing within 10 seconds (compatible with modules up to 2300×1300mm), enabling 100% online full inspection and Grade A/B/C sorting.

• 4. Photovoltaic Power Plant Operation & Maintenance

  ▶ Application Scenario: Annual degradation rate assessment of outdoor power plants, shading loss diagnosis
  ▶ Core Value: Portable models support on-site IV scanning, compare initial nominal parameters to locate abnormal modules (e.g., >15% FF drop due to hot spots), and guide precise replacement.

Precautions

• 1. Strict Environmental Control Requirements

  Perovskite materials are highly sensitive to temperature and humidity. Testing must be conducted in a constant-temperature (recommended 25±1℃), constant-humidity (RH<30%) environmental chamber or glove box to prevent performance drift or failure caused by water/oxygen penetration. Test data obtained in uncontrolled environments is invalid.

• 2. Light Intensity Calibration & Spectral Matching

  An AAA-class solar simulator must be used, ensuring spectral match (AM1.5G) error <±5% and spatial non-uniformity <±2%. Due to perovskite's unique spectral response, regularly calibrate the light intensity meter with a reference cell to avoid efficiency measurement deviations caused by spectral mismatch.

• 3. Ultra-Short Pulse & Scan Speed Optimization

  Perovskites are prone to ion migration degradation under continuous illumination. IV testing should employ millisecond pulse widths (recommended <50ms) and high-speed scanning (single scan <10ms), combined with multi-channel delay triggering technology, to minimize the impact of photo-induced degradation on test results.

• 4. Contact Pressure & Non-Destructive Probe Technology

  Perovskite thin films are fragile and easily damaged. Testing requires probes with micro-Newton level contact pressure (e.g., carbon nanotube probes or flexible electrodes) to avoid mechanical damage. Simultaneously, an automatic alignment system ensures probes contact electrodes precisely without scratching the active layer.

• 5. Hysteresis Effect Analysis & Preconditioning

  Perovskites exhibit significant IV hysteresis. The test protocol must include a pre-illumination stabilization step (e.g., 60 seconds white light preconditioning) and record bidirectional scan curves (forward/reverse voltage scan). Reports must specify scan direction and preconditioning; otherwise, data is incomparable.

• 6. Dynamic Range & Low-Noise Design

  Perovskite modules have relatively low current density (~20mA/cm²). Testers must have pA-level current resolution and µV-level voltage accuracy, with electrical noise controlled below the nA level. A 4-wire Kelvin connection is recommended to eliminate lead resistance effects and ensure accuracy in low-light performance testing.