Ultrafast and Parts-per-Billion-Level MEMS Gas Sensors by Hetero-Interface Engineering of 2D/2D Cu-TCPP@ZnIn2S4 with Enriched Surface Sulfur Vacancies
Sancan Han,
Xianyu Qiao,
Qingqiang Zhao
et al.
Abstract:The primary challenge for resonant-gravimetric gas sensors is the synchronous improvement of the sensitivity and response time, which is restricted by low adsorption capacity and slow mass transfer in the sensing process and remains a great challenge. In this study, a novel 2D/2D Cu-TCPP@ZnIn 2 S 4 composite is successfully constructed, in which Cu-TCPP MOF is used as a core substrate for the growth of 2D ultrathin ZnIn 2 S 4 nanosheets with well-defined {0001} crystalline facets. The Cu-TCPP@ZnIn 2 S 4 sensor… Show more
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