Multiple Stacked Solar Cell
Author: Source: Datetime: 2016-09-22 16:09:15
If the primary use is sky radiation (flat-plate photovoltaic cells) rather than direct radiation focus photovoltaic cell, the photocell sensitivity is less affected by atmospheric conditions. Thus, facing the sun tilted the photovoltaic panels than jump tracking and focusing device the high sensitivity.
Converting Soalr Power Into Electricity
For more serious impact on multi-junction solar power batteries exist, particularly when only two endpoints Juan especially prominent, because the light generated cell current density so that different optical losses resulting from mismatching the top and bottom.
Therefore, as the future of different types of solar power batteries materials can be utilized Gao, then you need statistical information on the particular geographic region of the spectrum and in different seasons distribution _ in order to predict and optimize the electrical power output of photovoltaic power plants. In the same elevation angle of the sun but the typical spectral irradiance of different cloud conditions measured: a cloudy sky with strong direct radiation, and the other one is no direct radiation cloudy, each child respectively measured with a wide band (280-4000nm) observations PYRANOMETER calibrated - from the figure can clearly see the impact of clouds on the radiation spectrum: full spectrum towards the ultraviolet and blue light moving in terms of chlorophyll absorption band near 650nm outside, due to the albedo and ground in the red. water vapor and droplets and the infrared region has strong absorption to grow.
In the case of stacked solar power batteries, there are two different directions: one is to seek efficient stacked battery, as described in the previous section; the other is to use a low-cost thin-film batteries based stacked structure efficiency stacked structure has been able to use more than 30% at the top and bottom of the GaAs cells using a combination of crystalline silicon cells, the light collecting ratio of 350-500 conditions, it has been measured obtaining efficiency of 31% for this type of Study stacked structure is still continued and the development efficiency is expected after two batteries stacked up to 35%, while the efficiency of the three battery discharge after gold is expected to reach 40%.
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