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arXiv · 2412.18186

Hot-carrier photocatalysts with energy-selective contacts based on quantum wells and dots

Shuanglong Han·Zhiqiang Fan·Ousi Pan·Xiaohang Chen·Zhimin Yang·Yanchao Zhang·Jincan Chen·Shanhe Su
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Abstract

In this paper, we simulate the function of hot-carrier photocatalysts (HCPCs) with quantum well and quantum dot energy-selective contacts (ESCs) in the water-splitting reaction. The transport equations for these ESCs are derived by using ballistic transport theory. The results indicate that thermalization loss from non-ideal ESCs is a primary factor diminishing the efficiency of HCPCs. The performance of HCPCs can be enhanced by optimizing the position of ESCs and the width of the extraction energy. Notably, HCPCs with quantum dot ESCs demonstrate superior performance compared to those with quantum well ESCs.

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Shuanglong Han, Zhiqiang Fan, Ousi Pan, Xiaohang Chen, Zhimin Yang, Yanchao Zhang, Jincan Chen, Shanhe Su. 2024-12-24. Hot-carrier photocatalysts with energy-selective contacts based on quantum wells and dots. https://arxiv.org/abs/2412.18186

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