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:Photoconduction and the electronic structure of silica nanowires embedded with gold nanoparticles
學年100
學期1
出版(發表)日期2011/10/01
作品名稱Photoconduction and the electronic structure of silica nanowires embedded with gold nanoparticles
作品名稱(其他語言)
著者Pao, C.-W.; Wu, C.-T.; Tsai, H.-M.; Liu, Y.-S.; Chang, C.-L.; Pong, W. F.; Chiou, J.-W.; Chen, C.-W.; Hu, M.-S.; Chu, M.-W.; Chen, L.-C.; Chen, C.-H.; Chen, K.-H.; Wang, S.-B.; Chang, S.-J.; Tsai, M.-H.; Lin, H.-J.; Lee, J.-F.; Guo, J.-H.
單位淡江大學物理學系暨研究所
出版者College Park: American Physical Society
著錄名稱、卷期、頁數PHYSICAL REVIEW B 84, 165412(8pages)
摘要Silica nanowires (SiOx-NWs) embedded with Au peapods have been studied by energy-filtered scanning transmission electron microscopy (EFTEM), O K- and Au L3-edge x-ray absorption near-edge structure (XANES), and extended x-ray absorption fine structure (EXAFS), x-ray emission spectroscopy (XES) and scanning photoelectron microscopy. XANES and XES data show that band gaps of Au-peapod-embedded and pure SiOx-NWs were 6.8 eV. In additional, XANES and EXAFS results indicate illumination-induced electron transfer from Au peapod to SiOx-NWs and does not show any feature attributable to the formation of Au-Si bonding in the Au peapod embedded in SiOx-NWs with or without illumination. Photoresponse and EFTEM measurements show that green light has more significant enhancement of photoconductivity than red and blue light due to surface plasmon resonance and suggest that transport of electrons across SiOx-NWs is via Mott-variable-range hopping mechanism through localized or defect states.
關鍵字
語言英文(美國)
ISSN1098-0121;1550-235X
期刊性質國外
收錄於
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;電子版
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