Author:
Zhang Chunqian,Li Chuanbo,Liu Zhi,Zheng Jun,Xue Chunlai,Zuo Yuhua,Cheng Buwen,Wang Qiming
Abstract
Abstract
The enhanced room-temperature photoluminescence of porous Si nanowire arrays and its mechanism are investigated. Over 4 orders of magnitude enhancement of light intensity is observed by tuning their nanostructures and surface modification. It is concluded that the localized states related to Si-O bonds and self-trapped excitations in the nanoporous structures are attributed to the strong light emission.
Publisher
Springer Science and Business Media LLC
Subject
Condensed Matter Physics,General Materials Science
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