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arXiv 2101.08504physics.app-ph
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基于宽禁带太阳能电池的高效热电-光伏混合系统的实用开发

Practical development of efficient thermoelectric-photovoltaic hybrid systems based on wide-gap solar cells

Bruno Lorenzi, Paolo Mariani, Andrea Reale, Aldo Di Carlo, Gang Chen, Dario Narducci

AI总结:

本文针对光伏电池效率随温度升高而下降的问题,开发了面向非晶硅、GaInP和钙钛矿宽禁带太阳能电池的定制化碲化铋热电发电器,通过建模与实验验证了热电-光伏混合系统可实现最高+3.1%的效率增益。

摘要:

太阳能电池效率随温度升高而下降是光伏(PV)领域的一个已知问题。温度敏感性可能在太阳能电池板的整个使用寿命期间导致相当可观的能量损失。从这一角度来看,混合热电-光伏(HTEPV)系统通过回收太阳能电池的热损失来产生额外的功率输出,可以成为一种合适的选择。然而,只有宽禁带太阳能电池的混合化在效率增益方面是适宜的,并且值得进行研究以评估HTEPV器件的有效性。在这项工作中,我们报告了定制化碲化铋热电发电器的建模与开发,这些发电器经过优化,可与非晶硅(aSi)、磷化镓铟(GaInP)或钙钛矿太阳能电池进行混合。模型结果在全部三种情况下均显示出效率增益,其中钙钛矿的最大增益为+3.1%(从16.4%提高到19.5%)。这些提升随后在钙钛矿太阳能电池的案例中得到了实验验证,实验发现最大增益出现在传统光伏器件的典型工作温度下。该实验评估以精确的方式证明了太阳能电池热电混合化的真实潜力。

英文摘要:

The decrease of solar cell efficiency with temperature is a known problem for photovoltaics (PV). Temperature sensitivity can lead to a considerable amount of energy losses over the lifetime of solar panels. In this perspective Hybrid Thermoelectric-Photovoltaic (HTEPV) systems, which recover solar cell heat losses to produce an additional power output, can be a suitable option. However only hybridization of wide-gap solar cells is convenient in terms of efficiency gains and deserves investigation to evaluate HTEPV devices effectiveness. In this work we report the modeling and the development of customized bismuth telluride thermoelectric generators, optimized to be hybridized with amorphous silicon (aSi), Gallium Indium Phosphide (GaInP) or Perovskites solar cells. The model results showed in all three cases efficiency gains with a maximum of +3.1% for Perovskites (from 16.4% to 19.5%). These enhancements were then experimentally validated for the case of Perovskites solar cells, for which maximum gains were found to occur at typical operating temperatures of conventional PVs. This experimental evaluation demonstrated in an accurate fashion the real potential of thermoelectric hybridization of solar cells.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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