Furui Li, Songchi Liao, Junyu Su, Bowen Li, Huan He, Yuechun Fu
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High-performance self-powered UV photodetector based on SnO2/Zn2SnO4 composites from one-step hydrothermal synthesis
In this work, SnO2/Zn2SnO4 composites were synthesized by a simple one-step hydrothermal method to construct a high-performance self-powered UV photodetector. SnO2 nanoneedles are distributed on the surface of Zn2SnO4 nanosheets, and they show well-formed heterointerface and type-II band structure. Compared with pure Zn2SnO4, SnO2/Zn2SnO4 composites display the relatively higher UV light absorbance and charge transfer capability. Under UV illumination, the photodetectors based on SnO2/Zn2SnO4 composites and ITO conductive electrode display stable and repeatable self-powered characteristics. With an optimal Zn:Sn molar ratio of 1:1 in the reactants, ZS11 based photodetector shows the highest detectivity of 3.96 × 1011 Jones, which is ascribed to the morphology and energy band regulations of Zn2SnO4 by SnO2.
期刊介绍：
The Journal of Materials Science: Materials in Electronics is an established refereed companion to the Journal of Materials Science. It publishes papers on materials and their applications in modern electronics, covering the ground between fundamental science, such as semiconductor physics, and work concerned specifically with applications. It explores the growth and preparation of new materials, as well as their processing, fabrication, bonding and encapsulation, together with the reliability, failure analysis, quality assurance and characterization related to the whole range of applications in electronics. The Journal presents papers in newly developing fields such as low dimensional structures and devices, optoelectronics including III-V compounds, glasses and linear/non-linear crystal materials and lasers, high Tc superconductors, conducting polymers, thick film materials and new contact technologies, as well as the established electronics device and circuit materials.
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