J. Rodríguez, M. Vetter, M. Fortes, C. Alberte, P. Otero
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引用次数: 6
摘要
目前，通过在多个确定的波长同时照射太阳能电池，可以建立一个非常快速的光谱响应(VFSR)测量系统。这可以通过多种波长的发光二极管(led)来实现，在不同的刺激频率下工作，并分析产生的太阳能电池电流的傅里叶变换。为了测量硅薄膜太阳能电池的光谱响应(SR)，对发光二极管在300 nm至1000 nm波长范围内的发射进行了详细的表征。一个VFSR设备已经建立，实现了这些led的选择，与单色器和锁定放大器技术的传统SR系统相比，VFSR与SR测定的短路电流密度(Jsc)的差异约为1.8%。我们使用VFSR系统在10 cm × 10 cm的迷你模块中进行了Jsc映射，目的是展示执行Jsc映射的潜力和障碍。
Development of a very fast spectral response measurement system for silicon thin film modules
Nowadays it is possible to built a very fast spectral response (VFSR) measurement system by illuminating simultaneously the solar cell at multiple well defined wavelengths. This can be done by means of light emitting diodes (LEDs) available for a multitude of wavelengths, operating at different stimulation frequencies and analysis of the Fourier Transform of the generated solar cell current. For the purpose to measure the spectral response (SR) of silicon thin film solar cells a detailed characterization of LEDs emitting in the wavelength range from 300 nm to 1000 nm was performed. A VFSR equipment has been built implementing a selection of these LEDs and the difference of the short circuit current density (Jsc) determined from the SR with the VFSR results in about 1.8% in comparison to a conventional SR system with monochromator and lock-in amplifier technology. We have performed Jsc mappings in mini modules 10 cm × 10 cm with the VFSR system with the aim to show the potential and obstacles to perform Jsc mappings.
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