胶体PbS量子点平面取向排列的完美超晶格的形成

The Japan Society of Applied Physics Pub Date : 2017-09-12 DOI:10.7567/SSDM.2017.PS-15-02

S. Fujimoto, F. Suetsugu, K. Mukai

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引用次数: 0

摘要

我们研究了通过在溶液中沉积具有清晰面状的胶体PbS量子点来形成具有相同平面取向的完美量子点超晶格的方法。通过合成温度控制量子点平面。我们发现，沉积速度越慢，量子点的取向排列越好。完美的量子点超晶格具有较高的中间带载流子迁移率，有望提高太阳能电池的能量转换效率。

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Formation of Perfect Superlattice with Aligned Plane Orientation of Colloidal PbS Quantum Dots

We investigated the method to form a perfect quantum dot (QD) superlattice, in which each QD has the same plane orientation, by the deposition of colloidal PbS QDs with clear facets in solution. QD facets were controlled by synthesis temperature. We found that the slower the deposition, the better the orientation alignment of QDs. The energy conversion efficiency of solar cell is expected to be improved with perfect QD superlattice by its high carrier mobility in intermediate bands.

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The Japan Society of Applied Physics

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