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首页> 外文期刊>Applied optics >Differential spectral responsivity measurement of photovoltaic detectors with a light-emitting-diode-based integrating sphere source
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Differential spectral responsivity measurement of photovoltaic detectors with a light-emitting-diode-based integrating sphere source

机译：使用基于发光二极管的积分球源测量光伏探测器的差分光谱响应度

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摘要

We present an experimental realization of differential spectral responsivity measurement by using a light-emitting diode (LED)-based integrating sphere source. The spectral irradiance responsivity is measured by a Lambertian-like radiation field with a diameter of 40 mm at the peak wavelengths of the 35 selectable LEDs covering a range from 280 to 1550 nm. The systematic errors and uncertainties due to lock-in detection, spatial irradiance distribution, and reflection from the test detector are experimentally corrected or considered. In addition, we implemented a numerical procedure to correct the error due to the broad spectral bandwidth of the LEDs. The overall uncertainty of the DSR measurement is evaluated to be 2.2percent (k velence 2) for Si detectors. To demonstrate its application, we present the measurement results of two Si photovoltaic detectors at different bias irradiance levels up to 120 mW/cm~(2).
机译：通过使用基于发光二极管（LED）的积分球源，我们提出了差分光谱响应度测量的实验实现。光谱辐照度响应度是通过在280至1550 nm范围内的35个可选LED的峰值波长处具有40 mm直径的朗伯型辐射场来测量的。由于锁定检测，空间辐照度分布和来自测试检测器的反射而导致的系统误差和不确定性通过实验进行校正或考虑。此外，我们实施了一种数值程序来纠正由于LED的宽光谱带宽引起的误差。对于Si检测器，DSR测量的总体不确定度估计为2.2％（水平2）。为了证明其应用，我们介绍了两个Si光伏探测器在高达120 mW / cm〜（2）的不同偏置辐照度下的测量结果。

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