Employing graphene acoustoelectric switch by dual surface acoustic wave transducers
學年 107
學期 2
出版（發表）日期 2019-06-03
作品名稱 Employing graphene acoustoelectric switch by dual surface acoustic wave transducers
作品名稱（其他語言）
著者 Ching-Ping Lee; Yu-Peng Hong; Man-Ting Shen; Chiu-Chun Tang; D. C. Ling; Yung-Fu Chen; Cen-Shawn Wu; Jeng-Chung Chen
單位
出版者
著錄名稱、卷期、頁數 Scientific Reports 9: 8235, p.1-9
摘要 We implement a logic switch by using a graphene acoustoelectric transducer at room temperature. We operate two pairs of inter-digital transducers (IDTs) to launch surface acoustic waves (SAWs) on a LiNbO3 substrate and utilize graphene as a channel material to sustain acoustoelectric current Iae induced by SAWs. By cooperatively tuning the input power on the IDTs, we can manipulate the propagation direction of Iae such that the measured Iae can be deliberately controlled to be positive, negative, or even zero. We define the zero-crossing Iae as Ioffae, and then demonstrate that Iae can be switched with a ratio Ionae/Ioffae∼104 at a rate up to few tens kHz. Our device with an accessible operation scheme provides a means to convert incoming acoustic waves modulated by digitized data sequence onto electric signals with frequency band suitable for digital audio modulation. Consequently, it could potentially open a route for developing graphene-based logic devices in large-scale integration electronics.
關鍵字 Graphene;Nanoscale device
語言 en
ISSN 2045-2322
期刊性質 國外
收錄於 SCI
產學合作
通訊作者 Ching-Ping Lee
審稿制度 是
國別 TWN
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/987654321/116821 )

SDGS 產業創新與基礎設施