Aluminum‐alloyed back‐junction is a novel concept for low‐cost and industrially feasible n‐type silicon solar cells. In this paper, we fabricated industrially high‐efficiency solar cells based on both uncompensated and compensated n‐type silicon. Moreover, we measured the impact of temperature on the photovoltaic performance of aluminum‐alloyed back‐junction n‐type silicon solar cells. Compared with conventional front‐junction solar cells, the back‐junction silicon solar cells have a lower absolute temperature coefficient especially for moderate carrier diffusion lengths which is attributed to distinctive spectral response, stronger dependence on carrier diffusion lengths, and incomplete ionization of aluminum. In addition, the lowest absolute temperature coefficient is obtained on this type of aluminum‐alloyed back‐junction solar cell when the compensated silicon is used as the base layer. These results suggest that aluminum‐alloyed back‐junction solar cells especially based on the compensated silicon can generate more electricity at a high temperature, and therefore, as a cost‐effective production of silicon solar cells, this type of solar cells have a very good potential for actual outdoor application. This work is highly relevant to the development of an advanced process for the achievement of low‐cost, high‐efficiency, commercially viable silicon‐based solar cells.

中文翻译：

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铝合金后结n型硅太阳能电池的制备和温度相关性能

铝合金后结是一种低成本，工业可行的n型硅太阳能电池的新颖概念。在本文中，我们基于无补偿和补偿n型硅制造了工业高效太阳能电池。此外，我们测量了温度对铝合金背面n型硅太阳能电池光伏性能的影响。与传统的前结太阳能电池相比，后结硅太阳能电池具有较低的绝对温度系数，尤其是对于中等载流子扩散长度，这归因于独特的光谱响应，对载流子扩散长度的依赖性更大以及铝的不完全电离。此外，当使用补偿硅作为基础层时，在这种类型的铝合金背结太阳能电池上可获得最低的绝对温度系数。这些结果表明，特别是基于补偿硅的铝合金后结太阳能电池可以在高温下产生更多的电能，因此，作为具有成本效益的硅太阳能电池生产，这种类型的太阳能电池具有很好的性能。实际户外应用的潜力。这项工作与开发先进工艺以实现低成本，高效率，商业上可行的硅基太阳能电池高度相关。这些结果表明，特别是基于补偿硅的铝合金后结太阳能电池可以在高温下产生更多的电能，因此，作为具有成本效益的硅太阳能电池生产，这种类型的太阳能电池具有很好的性能。实际户外应用的潜力。这项工作与开发先进工艺以实现低成本，高效率，商业上可行的硅基太阳能电池高度相关。这些结果表明，特别是基于补偿硅的铝合金后结太阳能电池可以在高温下产生更多的电能，因此，作为具有成本效益的硅太阳能电池生产，这种类型的太阳能电池具有很好的性能。实际户外应用的潜力。这项工作与开发先进工艺以实现低成本，高效率，商业上可行的硅基太阳能电池高度相关。