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  1. National Taiwan Ocean University Research Hub
  2. 電機資訊學院
  3. 光電與材料科技學系
Please use this identifier to cite or link to this item: http://scholars.ntou.edu.tw/handle/123456789/23660
Title: A self-powered dual-functional hybrid Cu2O/SiNWs heterojunction with applications in broadband photodetectors and ozone gas sensors
Authors: Huang, Chun-Ying
He, Xin-Rong
Jhang, Jhih-Jyun
Wu, Jin-Han
Wu, Tsung-Han
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.
URI: http://scholars.ntou.edu.tw/handle/123456789/23660
ISSN: 0924-4247
DOI: 10.1016/j.sna.2022.113992
Appears in Collections:光電與材料科技學系

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