锁相载流子成像技术在太阳能电池中的应用

提出了一种基于锁相载流子成像技术的太阳能电池特性研究方法。激光激励的红外光生载流子辐射测量技术是一种动态的近红外调制的光致发光成像技术，已经被证实为半导体输运参数的一种行之有效的非接触测量方法。提出的锁相载流子成像技术则是一种基于红外相机的动态近红外光生载流子辐射光致发光法，它是光生载流子技术在成像领域的延伸。采用锁相载流子成像系统对10片样片进行了实验，并对获得的红外图像进行了统计分析，由此得到了载流子成像统计参数与太阳能电池光电转换效率间的相关特性。结果表明，锁相载流子成像的统计参数可用于表征太阳能电池的效率。

Application of Lock-in Photocarrier Radiometry in Solar Cells

Lock-in PCR was introduced to investigate the industrial solar cell. Laser-induced infrared photocarrier radiometry (PCR) is a dynamic near-infrared (NIR) modulated photoluminescence imaging (PL), which has proven to be an effective non-contact methodology for tie measurement of transport properties in semiconductors. Lock-in carrierography (LIC) is a dynamic NIR InGaAs-camera-based photocarrier radiometric PL imaging method recently introduced as an imaging extension of PCR. Ten industrial multicrystalline solar cells were used for LIC measurements. Statistical distributions were obtained from the infrared images and the dependencies of the efficiencies on the statistical parameters were found. Experimental results show that the statistic parameters in lock-in PCR could be used for the index of efficiency of solar cells.