Publications by authors named "Xuexi Sheng"
Perovskite structured CsPbX (X = Cl, Br or I) quantum dots (QDs) have attracted great attention in the past few years for appealing application potentials in photovoltaic and optoelectronic devices. In this report, the CsPbX QDs are shown to perform as a new probe for metal ions with high sensitivity, high selectivity and instant response by the quenching or enhancing of the photoluminescence (PL). Through experimental and calculation efforts, the probing mechanisms are investigated.
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- Inorganic CsPbX perovskite quantum dots (IPQDs) are combined with silicon nanowires (SiNWs) to improve ultraviolet (UV) detection.
- The structure allows for strong light interaction and efficient conversion of UV light into usable emission bands for rapid detection.
- The resulting hybrid detectors achieve fast response times and high responsivity, offering a potential for scalable, cost-effective manufacturing of advanced silicon-based UV detectors.