X-ray spectroscopy study of ZnxSn1-xO2 nanorods synthesized by hydrothermal technique

Title
X-ray spectroscopy study of ZnxSn1-xO2 nanorods synthesized by hydrothermal technique
Authors
Sanjeev GautamAnup ThakurAnkush Vij석재권Ik-Jae LeeYong-Jun ParkTae-Joo ShinMin-Gyu KimHyun-Joon ShinJenn-Min LeeJin-Ming Chen송종한채근화
Keywords
ZnxSn1-xO2; Zn-doped SnO2; Crystal morphology; Hydrothermal crystal growth; Nanomaterials; Semiconducting materials
Issue Date
2013-11
Publisher
Thin solid films
Citation
VOL 546, 250-254
Abstract
An environment friendly, inexpensive solvothermal route is used to synthesize polycrystalline ZnxSn1 −xO2 (0.0 ≤ x ≤ 0.07) nanorods with nanoflower morphology without using any organic solvents, surfactant or any catalytic agent under low hydrothermal pressure. Scanning electron microscopy (SEM) equipped with energy-dispersive x-ray spectra depicts the formation of near stoichiometric ZnxSn1 −xO2 nanorods. SEM analysis reveals that Zn incorporation in SnO2 decreases the nanorod diameter from ~ 20 nm to ~ 10 nm. High-resolution x-ray diffraction analysis reveals the rutile structure for x ≤ 0.04 samples, while for x = 0.07 a Zn2SnO4 phase is observed. Near edge x-ray absorption fine structure and x-ray photoemission spectroscopy indicate that Zn atoms have been substituted for Sn sites in SnO2 lattice without forming secondary phases and also create numerous oxygen vacancy in the structure.
URI
http://pubs.kist.re.kr/handle/201004/45972
ISSN
00406090
Appears in Collections:
KIST Publication > Article
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