教師資料查詢 | 類別: 期刊論文 | 教師: 林大欽 LING, DAH-CHIN (瀏覽個人網頁)

標題: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
語言英文
ISSN2045-2322
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
國別中華民國
公開徵稿
出版型式,電子版,紙本
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