教師資料查詢 | 類別: 期刊論文 | 教師: 張經霖 CHANG, HENRY CHING-LIN (瀏覽個人網頁)

標題:Room Temperature Ferromagnetism and Fast Ultraviolet Photoresponse of Inkjet-Printed Mn-Doped ZnO Thin Films
學年98
學期2
出版(發表)日期2010/06/01
作品名稱Room Temperature Ferromagnetism and Fast Ultraviolet Photoresponse of Inkjet-Printed Mn-Doped ZnO Thin Films
作品名稱(其他語言)
著者Wu, Yan; Rao, K. V.; Voit, Wolfgang; Tamaki, Takahiko; Jayakumar, O.D.; Belova, Lyubov; Liu, Y. S.; Glans, P. A.; Chang, C. L.; Guo, Jing-Hua
單位淡江大學物理學系
出版者
著錄名稱、卷期、頁數IEEE Transactions on Magnetics 46(6), pp.2152-2155
摘要We have synthesized Mn-doped ZnO thin films by inkjet printing using a two-step annealing process at 200˚C for the decomposition of the organic compounds, and at various temperatures above 400˚C to tailor room temperature ferromagnetism. Highly c axis oriented 80 to 400 nm thin films on (001) Si substrates are obtained with a magnetic moment as large as 2.1μB/Mn2+. X-ray absorption and emission spectra measurements at the O K edge and the Mn L edge suggest strong p-d hybridization between the Mn2+ and O2-. Furthermore, Mn L edge XAS indicates the emergence of Mn3+/Mn4+ mixed valence states for films annealed above 500˚C that leads to suppression of ferromagnetic ordering. All of these films show large and fast ultraviolet (UV) photoresponse with the decay times of about 0.5 ms, suggesting the potential for designing multifunctional UV sensors.
關鍵字Ferromagnetism; Mn-doped ZnO; inkjet printing; photoresponse
語言英文
ISSN0018-9464
期刊性質國外
收錄於SCI;EI
產學合作
通訊作者
審稿制度
國別美國
公開徵稿
出版型式紙本
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