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首页> 外文会议>2017 15th International Conference on Quality in Research : International Symposium on Electrical and Computer Engineering >External quantum efficiency measurement of solar cell
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External quantum efficiency measurement of solar cell

机译：太阳能电池的外部量子效率测量

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External Quantum Efficiency (EQE) measurement is one important method that is implemented to observe solar cells' behaviour in a specific range of wavelength. This research measured EQE in different type of solar cells: silicon, dye-sensitised solar cell (DSSC), and perovskite solar cell. The objectives of this research are to understand the correct EQE measurement method and to understand the factors that affect EQE result on the three types of measured solar cells. Dedicated illuminator, monochromator, and lock-in amplifier, as the main equipments, were used in the experiments. The method used was the latest version of the standard for doing EQE measurement, which is ASTM E1021-15. The spectral responsivity (SR) has to be measured first before calculating the EQE value. This value was then validated using current density value obtained from current-voltage measurement. As a result, the silicon has the highest EQE among them all, but it is the perovskite which has the same profile with standard solar irradiance spectrum. It means that perovskite solar cell has the potency to maximise the utilisation of solar irradiance. Some critical points of measurements had also been identified during research. First is the providing of the testing vacuum chamber to minimise the influence of the environment. Second is the importance of regular calibration of the reference photodetector. Third is the illuminated area of reference photodetector. Fourth is the nonlinearity of SR versus light intensity in the DSSC.
机译：外部量子效率（EQE）测量是一种重要的方法，用于观察太阳能电池在特定波长范围内的行为。这项研究测量了不同类型的太阳能电池的EQE：硅，染料敏化太阳能电池（DSSC）和钙钛矿太阳能电池。这项研究的目的是了解正确的EQE测量方法，并了解影响三种类型被测太阳能电池EQE结果的因素。实验中使用了主要的专用照明器，单色仪和锁定放大器。使用的方法是用于进行EQE测量的标准的最新版本，即ASTM E1021-15。在计算EQE值之前，必须先测量光谱响应度（SR）。然后使用从电流-电压测量获得的电流密度值验证该值。结果，硅在所有之中具有最高的EQE，但是钙钛矿具有与标准太阳辐射光谱相同的轮廓。这意味着钙钛矿太阳能电池具有最大化利用太阳辐照度的潜力。在研究过程中还确定了一些关键的测量点。首先是提供测试真空室，以最大程度地减少对环境的影响。第二是定期校准参考光电探测器的重要性。第三是参考光电探测器的照明区域。第四是DSSC中SR与光强度的非线性关系。

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