|Title:||A self-powered dual-functional hybrid Cu2O/SiNWs heterojunction with applications in broadband photodetectors and ozone gas sensors||Authors:||Huang, Chun-Ying
Lin, Tai -Yuan
|Keywords:||Self-powered;Dual-functional;Photodetector;Gas sensor||Issue Date:||1-Nov-2022||Publisher:||ELSEVIER SCIENCE SA||Journal Volume:||347||Source:||SENSORS AND ACTUATORS A-PHYSICAL||Abstract:||
Dual-functional sensors can replace two or more individual sensors in a platform so they decrease the system area. However, these devices have a major limitation in that they feature high power consumption. A self -powered dual-functional device that detects broadband light detecting and senses ozone (O3) is reported. The device architecture features a solution-processed Cu2O thin film that covers silicon nanowire (SiNW) arrays to form a heterojunction. The hybrid Cu2O/SiNWs heterojunction structure allows light trapping and gas adsorption because it has a large specific interface area. The proposed device generates an open-circuit voltage of 0.36 V when illuminated using visible-light and can be used to detect various concentrations of O3 with excellent selectivity and long-term stability. This Cu2O/SiNW heterojunction structure shows that capability to develop self-powered dual-functional sensors in the future.
|Appears in Collections:||光電與材料科技學系|
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