ICCAS OpenIR
Synthesis, Optical Properties, and Ethanol-Sensing Properties of Bicone-like ZnO Microcrystals via a Simple Solution Method
Yu, Qingjiang1,2; Yu, Culling3; Fu, Wuyou1; Yuan, Mingxia1; Guo, Jin; Li, Minghui1; Liu, Shikai1; Zou, Guangtian1; Yang, Haibin1
2009-07-16
Source PublicationJOURNAL OF PHYSICAL CHEMISTRY C
ISSN1932-7447
Volume113Issue:28Pages:12016-12021
AbstractLarge-scale uniform bicone-like ZnO microcrystals were successfully synthesized via a simple solution method at lower temperature (80 degrees C). The as-prepared bicones, composed of two cones, possess a single-crystal hexagonal structure and grow along the [0001] direction. The influence of the reactant concentration on the size and shape of the ZnO samples has been studied in detail, and the results revealed that reactant concentration plays a crucial role in determining the final morphologies of the samples. The growth process of the bicone-like ZnO microcrystals was viewed by field emission scanning electron microscopy (FESEM) characterization, and a possible formation mechanism was proposed. Optical properties of the bicone-like ZnO microcrystals were also investigated by photoluminescence (PL) spectroscopy. The room-temperature PL spectrum of the bicone-like ZnO microcrystals shows a strong UV emission peak. The UV emission is further identified to originate from the radiative free exciton recombination by temperature-dependent PL. In addition, the bicone-like ZnO microcrystals exhibit excellent sensing properties toward ethanol gas at an operating temperature of 300 degrees C. The response and recovery times are 2 and 3 s, respectively. These results indicate that the bicone-like ZnO microcrystals have potential applications in fabricating optoelectronic devices and gas sensors.
DOI10.1021/jp9020849
Indexed BySCI
Language英语
WOS IDWOS:000268139500009
PublisherAMER CHEMICAL SOC
Citation statistics
Cited Times:20[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/66552
Collection中国科学院化学研究所
Corresponding AuthorYang, Haibin
Affiliation1.Jilin Univ, State Key Lab Superhard Mat, Changchun 130012, Peoples R China
2.Chinese Acad Sci, Changchun Inst Appl Chem, State Key Lab Polymer Phys & Chem, Changchun 130022, Peoples R China
3.Jilin Inst Metrol, Changchun 130022, Peoples R China
Recommended Citation
GB/T 7714
Yu, Qingjiang,Yu, Culling,Fu, Wuyou,et al. Synthesis, Optical Properties, and Ethanol-Sensing Properties of Bicone-like ZnO Microcrystals via a Simple Solution Method[J]. JOURNAL OF PHYSICAL CHEMISTRY C,2009,113(28):12016-12021.
APA Yu, Qingjiang.,Yu, Culling.,Fu, Wuyou.,Yuan, Mingxia.,Guo, Jin.,...&Yang, Haibin.(2009).Synthesis, Optical Properties, and Ethanol-Sensing Properties of Bicone-like ZnO Microcrystals via a Simple Solution Method.JOURNAL OF PHYSICAL CHEMISTRY C,113(28),12016-12021.
MLA Yu, Qingjiang,et al."Synthesis, Optical Properties, and Ethanol-Sensing Properties of Bicone-like ZnO Microcrystals via a Simple Solution Method".JOURNAL OF PHYSICAL CHEMISTRY C 113.28(2009):12016-12021.
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