Efficient and environmentally benign visible light responsive materials have been sought after owing to their interesting applications such as visible light photocatalysis, visible light water splitting and visible light sensing. In this research study, the effect of co-doping on the absorption and electrical properties of ZnS quantum dots is studied. Upon co-doping of Fe and Cu into ZnS quantum dots, a new absorption band in the visible region is observed. Furthermore, these quantum dots show photoresponse in the visible region unlike their undoped counterparts that is only effective in the UV region, suggesting their utility in light sensing applications.

中文翻译：

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阳离子共掺杂到 ZnS 量子点：面向可见光传感应用

高效且环境友好的可见光响应材料因其有趣的应用而受到追捧，例如可见光光催化、可见光水分解和可见光传感。在这项研究中，研究了共掺杂对 ZnS 量子点的吸收和电学性质的影响。在将 Fe 和 Cu 共掺杂到 ZnS 量子点中后，在可见光区观察到一个新的吸收带。此外，这些量子点在可见光区显示出光响应，而未掺杂的对应物仅在紫外线区有效，这表明它们在光传感应用中的实用性。