Nanophotonic hot electron devices for UV Si-photonics

Xiaoxin Wang, Zhiyuan Wang, Jifeng Liu
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Abstract

We report solar-bind UV detectors based on nanophotonic metal-oxide-semiconductor (MOS) structures. The nanostructured metal acts as the UV absorber, while the large meta/oxide interfacial energy barrier (>4 eV) eliminates the solar response. Quantum efficiencies >100% are demonstrated due to hot-electron induced avalanche gain in Si.
紫外硅光子学用纳米光子热电子器件
我们报道了基于纳米光子金属氧化物半导体(MOS)结构的太阳结合紫外探测器。纳米结构的金属作为紫外线吸收剂,而大的元/氧化物界面能垒(>4 eV)消除了太阳响应。由于硅中的热电子诱导雪崩增益,量子效率>100%。
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