Interface engineering: broadband light and low temperature gas detection abilities using a nano-heterojunction device
學年 104
學期 1
出版(發表)日期 2015-10-21
作品名稱 Interface engineering: broadband light and low temperature gas detection abilities using a nano-heterojunction device
作品名稱(其他語言)
著者 Chien-Min Chang; Ching-Han Hsu; Yi-Wei Liu; Tzu-Chiao Chien; Chun-Han Sung; Ping-Hung Yeh
單位
出版者
著錄名稱、卷期、頁數 Nanoscale 7, pp.20126-20131
摘要 Herein, we have designed a nano-heterojunction device using interface defects and band bending effects, which can have broadband light detection (from 365–940 nm) and low operating temperature (50 °C) gas detection abilities. The broadband light detection mechanism occurs because of the defects and band bending between the heterojunction interface. We have demonstrated this mechanism using CoSi2/SnO2, CoSi2/TiO2, Ge/SnO2 and Ge/TiO2 nano-heterojunction devices, and all these devices show broadband light detection ability. Furthermore, the nano-heterojunction of the nano-device has a local Joule-heating effect. For gas detection, the results show that the nano-heterojunction device presents a high detection ability. The reset time and sensitivity of the nano-heterojunction device are an order faster and larger than Schottky-contacted devices (previous works), which is due to the local Joule-heating effect between the interface of the nano-heterojunction. Based on the abovementioned idea, we can design diverse nano-devices for widespread use.
關鍵字
語言 en
ISSN 2040-3372 2040-3364
期刊性質 國外
收錄於 SCI
產學合作
通訊作者
審稿制度
國別 GBR
公開徵稿
出版型式 ,電子版,紙本
相關連結

機構典藏連結 ( http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/109334 )