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太陽能電池電激發光影像檢測系統

太陽能電池電激發光影像檢測系統



 

太陽能電池電激發光影像量測分析系統
Solar Cell Electroluminescence (EL) Image Measurement and Analysis System

 

簡介:
太陽能電池之效率提升仰賴於製程技術的開發與檢測分析技術的輔助,電激發光影像量測分析系統主要是以太陽能電池之發光特性,進行太陽能電池之發光特性、均勻性及缺陷檢測,在高效率太陽能電池的開發中,扮演很重要的角色,具有相當大的輔助性

  

 

Specification

Item

Specification

Physical Size

 300 mm * 300 mm * 700 mm

Current Range

 0~10A

Voltage Range

 0~36V

Measuring Area

 > 160 mm * 160 mm

Probe Station

 *Optional

    The solar cell is a device for photo-electron conversion. The solar cell can be biased at forward voltage, and perform as light emitting diode. The emitting wavelength is correlated to band-edge emission or defect assistant emission. The EL intensity is direct correlated to current density and the recombination coefficient.For absorber with the same band gap, the EL intensity is proportional to open circuit voltage (Voc).The sheet resistance (Rs) can also be analyzed based on equivalent circuit model for c-Si, uc-Si, and thin film solar cells.  The EL image of solar cell is dependent on injection current level, and used to evaluate the optimized cell/module structure for high efficiency approach.  

    The quantitative analysis of EL image has high benefit for process control instead of qualitative inspection. The reliability and aging of solar cell/module can also be studied by EL image system for the investigation of degradation parameters. The defect, creak, and shunting points can also be obtained.