Hexagonal crown-capped zinc oxide micro rods: Hydrothermal growth and formation mechanism

Lijing Zhang; Xiaomiao Liu; Chong Geng; Huajing Fang; Zhipeng Lian; Xiaoqing Wang; Dezhong Shen; Qingfeng Yan

doi:10.1021/ic401646t

Hexagonal crown-capped zinc oxide micro rods: Hydrothermal growth and formation mechanism

Lijing Zhang
, Xiaomiao Liu
, Chong Geng
, Huajing Fang
, Zhipeng Lian
, Xiaoqing Wang
, Dezhong Shen
, Qingfeng Yan

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

35 Scopus citations

Abstract

Hexagonal crown-capped ZnO micro rods were successfully prepared by a facile low-temperature hydrothermal method. The as-prepared ZnO micro rods are 4.4-5.2 μm in length and 2.4-3.6 μm in diameter, possessing a single-crystal hexagonal structure. The morphology evolution and structure changes were tracked during hydrothermal growth by field-emission scanning electron microscopy and X-ray diffraction, respectively. A three-stage growth mechanism of the hexagonal crown-capped ZnO micro rods was proposed and further verified by a growth solution renewal experiment. The room-temperature photoluminescence (PL) spectrum of the hexagonal crowns exhibits a strong UV emission at about 382 nm. The temperature dependent PL results indicate that the UV emission originates from the radiative free-exciton recombination.

Original language	English
Pages (from-to)	10167-10175
Number of pages	9
Journal	Inorganic Chemistry
Volume	52
Issue number	17
DOIs	https://doi.org/10.1021/ic401646t
State	Published - 2 Sep 2013
Externally published	Yes

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title = "Hexagonal crown-capped zinc oxide micro rods: Hydrothermal growth and formation mechanism",

abstract = "Hexagonal crown-capped ZnO micro rods were successfully prepared by a facile low-temperature hydrothermal method. The as-prepared ZnO micro rods are 4.4-5.2 μm in length and 2.4-3.6 μm in diameter, possessing a single-crystal hexagonal structure. The morphology evolution and structure changes were tracked during hydrothermal growth by field-emission scanning electron microscopy and X-ray diffraction, respectively. A three-stage growth mechanism of the hexagonal crown-capped ZnO micro rods was proposed and further verified by a growth solution renewal experiment. The room-temperature photoluminescence (PL) spectrum of the hexagonal crowns exhibits a strong UV emission at about 382 nm. The temperature dependent PL results indicate that the UV emission originates from the radiative free-exciton recombination.",

author = "Lijing Zhang and Xiaomiao Liu and Chong Geng and Huajing Fang and Zhipeng Lian and Xiaoqing Wang and Dezhong Shen and Qingfeng Yan",

year = "2013",

month = sep,

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doi = "10.1021/ic401646t",

language = "英语",

volume = "52",

pages = "10167--10175",

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TY - JOUR

T1 - Hexagonal crown-capped zinc oxide micro rods

T2 - Hydrothermal growth and formation mechanism

AU - Zhang, Lijing

AU - Liu, Xiaomiao

AU - Geng, Chong

AU - Fang, Huajing

AU - Lian, Zhipeng

AU - Wang, Xiaoqing

AU - Shen, Dezhong

AU - Yan, Qingfeng

PY - 2013/9/2

Y1 - 2013/9/2

N2 - Hexagonal crown-capped ZnO micro rods were successfully prepared by a facile low-temperature hydrothermal method. The as-prepared ZnO micro rods are 4.4-5.2 μm in length and 2.4-3.6 μm in diameter, possessing a single-crystal hexagonal structure. The morphology evolution and structure changes were tracked during hydrothermal growth by field-emission scanning electron microscopy and X-ray diffraction, respectively. A three-stage growth mechanism of the hexagonal crown-capped ZnO micro rods was proposed and further verified by a growth solution renewal experiment. The room-temperature photoluminescence (PL) spectrum of the hexagonal crowns exhibits a strong UV emission at about 382 nm. The temperature dependent PL results indicate that the UV emission originates from the radiative free-exciton recombination.

AB - Hexagonal crown-capped ZnO micro rods were successfully prepared by a facile low-temperature hydrothermal method. The as-prepared ZnO micro rods are 4.4-5.2 μm in length and 2.4-3.6 μm in diameter, possessing a single-crystal hexagonal structure. The morphology evolution and structure changes were tracked during hydrothermal growth by field-emission scanning electron microscopy and X-ray diffraction, respectively. A three-stage growth mechanism of the hexagonal crown-capped ZnO micro rods was proposed and further verified by a growth solution renewal experiment. The room-temperature photoluminescence (PL) spectrum of the hexagonal crowns exhibits a strong UV emission at about 382 nm. The temperature dependent PL results indicate that the UV emission originates from the radiative free-exciton recombination.

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U2 - 10.1021/ic401646t

DO - 10.1021/ic401646t

M3 - 文章

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VL - 52

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JO - Inorganic Chemistry

JF - Inorganic Chemistry

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ER -

Hexagonal crown-capped zinc oxide micro rods: Hydrothermal growth and formation mechanism

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