Observation of surface/defect states of SnO 2 nanowires on different substrates from X-ray excited optical luminescence

Dongniu Wang; Jinli Yang; Xifei Li; Jiajun Wang; Ruying Li; Mei Cai; T. K. Sham; Xueliang Sun

doi:10.1021/cg2011919

Observation of surface/defect states of SnO ₂ nanowires on different substrates from X-ray excited optical luminescence

Dongniu Wang
, Jinli Yang
, Xifei Li
, Jiajun Wang
, Ruying Li
, Mei Cai
, T. K. Sham^*
, Xueliang Sun

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

40 Scopus citations

Abstract

SnO ₂ nanowires (NWs) have been successfully synthesized on two different substrates (stainless steel (SS) and copper) via a facile hydrothermal process. SnO ₂ NWs with varying degrees of crystallinity are obtained on different substrates. The growth mechanisms are also deducted by observing the morphology revolution at various reaction times. Furthermore, the electronic structures and optical properties have been investigated by X-ray absorption near edge structure (XANES) and X-ray excited optical luminescence (XEOL) measurements. The yellow-green luminescence from SnO ₂ NWs is originated from the intrinsic surface states. Compared with SnO ₂ NWs on copper, a near infrared (NIR) luminescence is observed for SnO ₂ NWs on SS, which resulted from poor crystallinity and an abundance of defect/surface states.

Original language	English
Pages (from-to)	397-402
Number of pages	6
Journal	Crystal Growth and Design
Volume	12
Issue number	1
DOIs	https://doi.org/10.1021/cg2011919
State	Published - 1 Jan 2012
Externally published	Yes

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title = "Observation of surface/defect states of SnO 2 nanowires on different substrates from X-ray excited optical luminescence",

abstract = "SnO 2 nanowires (NWs) have been successfully synthesized on two different substrates (stainless steel (SS) and copper) via a facile hydrothermal process. SnO 2 NWs with varying degrees of crystallinity are obtained on different substrates. The growth mechanisms are also deducted by observing the morphology revolution at various reaction times. Furthermore, the electronic structures and optical properties have been investigated by X-ray absorption near edge structure (XANES) and X-ray excited optical luminescence (XEOL) measurements. The yellow-green luminescence from SnO 2 NWs is originated from the intrinsic surface states. Compared with SnO 2 NWs on copper, a near infrared (NIR) luminescence is observed for SnO 2 NWs on SS, which resulted from poor crystallinity and an abundance of defect/surface states.",

author = "Dongniu Wang and Jinli Yang and Xifei Li and Jiajun Wang and Ruying Li and Mei Cai and Sham, \{T. K.\} and Xueliang Sun",

year = "2012",

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doi = "10.1021/cg2011919",

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T1 - Observation of surface/defect states of SnO 2 nanowires on different substrates from X-ray excited optical luminescence

AU - Wang, Dongniu

AU - Yang, Jinli

AU - Li, Xifei

AU - Wang, Jiajun

AU - Li, Ruying

AU - Cai, Mei

AU - Sham, T. K.

AU - Sun, Xueliang

PY - 2012/1/1

Y1 - 2012/1/1

N2 - SnO 2 nanowires (NWs) have been successfully synthesized on two different substrates (stainless steel (SS) and copper) via a facile hydrothermal process. SnO 2 NWs with varying degrees of crystallinity are obtained on different substrates. The growth mechanisms are also deducted by observing the morphology revolution at various reaction times. Furthermore, the electronic structures and optical properties have been investigated by X-ray absorption near edge structure (XANES) and X-ray excited optical luminescence (XEOL) measurements. The yellow-green luminescence from SnO 2 NWs is originated from the intrinsic surface states. Compared with SnO 2 NWs on copper, a near infrared (NIR) luminescence is observed for SnO 2 NWs on SS, which resulted from poor crystallinity and an abundance of defect/surface states.

AB - SnO 2 nanowires (NWs) have been successfully synthesized on two different substrates (stainless steel (SS) and copper) via a facile hydrothermal process. SnO 2 NWs with varying degrees of crystallinity are obtained on different substrates. The growth mechanisms are also deducted by observing the morphology revolution at various reaction times. Furthermore, the electronic structures and optical properties have been investigated by X-ray absorption near edge structure (XANES) and X-ray excited optical luminescence (XEOL) measurements. The yellow-green luminescence from SnO 2 NWs is originated from the intrinsic surface states. Compared with SnO 2 NWs on copper, a near infrared (NIR) luminescence is observed for SnO 2 NWs on SS, which resulted from poor crystallinity and an abundance of defect/surface states.

UR - https://www.scopus.com/pages/publications/84855392027

U2 - 10.1021/cg2011919

DO - 10.1021/cg2011919

M3 - 文章

AN - SCOPUS:84855392027

SN - 1528-7483

VL - 12

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EP - 402

JO - Crystal Growth and Design

JF - Crystal Growth and Design

IS - 1

ER -

Observation of surface/defect states of SnO ₂ nanowires on different substrates from X-ray excited optical luminescence

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