晶体硅太阳电池具有成本低廉、工艺简单等优点, 但在生产过程中难免会出现断栅、破裂等问题, 因此对太阳电池片的检测至关重要。太赫兹波作为一种具有光子学及电子学特征的电磁波在无损检测方面具有独特的优势。通过采用太赫兹量子级联激光器数字全息成像系统, 对模拟设计的太阳电池金属栅线、破裂硅片以及不同电阻率的衬底进行测试。结果表明, 太赫兹全息成像技术在太阳电池检测领域具有较高的应用价值。

Due to its low cost and simple process, crystalline silicon solar cells occupy most of the market share of solar cells. However, such problems as broken-grid and cracks will inevitably occur in the production process, so the detection of solar cells is very important. Terahertz wave has unique advantages in non-destructive detection as a kind of electromagnetic wave with photonics and electronics characteristics. By using terahertz quantum cascade laser digital holographic imaging system, simulated solar cells metal grids, ruptured silicon wafers and substrates with different resistivity are tested. The results show that the terahertz holographic imaging technology has high application value in the field of solar cell detection.bjut.edu.cn.