研究了不同量子点对absorption spectrum的影响以及量子点敏化太阳能电池的特性
Investigating the effect of different quantum dots on the absorption spectrum and characteristics of quantum dot sensitized solar cells
摘要：
量子点敏化太阳能电池是备受关注的新一代太阳能电池之一。理论和模拟研究已经预测了这些电池的高效率，因此在未来，这些电池可能是硅太阳能电池的绝佳替代品。这些电池的其他优点是它们易于制造和比现有电池更便宜的制造方法。本文的主要思想是模拟不同的量子点对这些细胞的光学和电学特性，特别是效率的影响。然后，我们模拟了不同量子点同时敏化的效果，我们观察到细胞的光吸收和同时敏化的效率增加。然后，我们实验研究了一个细胞，给出了最好的模拟结果（PbS/CdS共敏化）。我们将量子点沉积在透明二氧化钛上，并获得了电池的光吸收、效率和其他特性。此外，我们研究了硫化钴代替铂和金作为PbS/CdS中的对电极的效果，并且我们发现效率提高了。
英文摘要：
Quantum dot sensitized solar cells are among the new generations of solar cells that have attracted much attention. Theoretical and simulation studies have predicted high efficiency for these cells so that in the future, these cells could be an excellent alternative to silicon solar cells. Other advantages of these cells are their ease of fabrication and cheaper manufacturing methods than existing cells. This paper's main idea is to simulate the effect of different quantum dots on the optical and electrical characteristics of these cells and, in particular, the efficiency. We then simulated the effect of simultaneous sensitizing by different quantum dots, and we observed that the cell's light absorption and the efficiency in simultaneous sensitizing, increased. Then we experimentally studied one of the cells that give the best simulation result (PbS/CdS co-sensitized). We deposited the quantum dots on transparent TiO2, and we obtained the light absorption, efficiency, and other characteristics of cells. Further, we investigated the effect of cobalt sulfide as the counter electrode in PbS/CdS, instead of platinum and gold, and we found that the efficiency has increased.
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