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Title: Pulsed laser irradiation-assisted electrodeposition of germanium in ionic liquid: From amorphous film to polycrystalline branched structures

Abstract

Highlights: • Ge branched structures was prepared by electrodeposition in ([EMIm]Tf2N) ionic liquid with laser irradiation. • The crystallinity of Ge with laser irradiation is obviously improved compared to the Ge film without laser irradiation. • By controlling the deposition time, the nanostructures with different morphology and size are obtained. - Abstract: The effect of a pulsed laser on the electrodeposition of germanium on indium tin oxide glass in the ionic liquid 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide ([EMIm]Tf{sub 2}N) was investigated. Cyclic voltammetric analysis of GeCl{sub 4} in [EMIm]Tf{sub 2}N showed that laser irradiation produced a positive shift of the reduction potential and an increase in the reduction current. Laser irradiation influenced the morphology and crystallinity of the Ge deposits. A deposition time of 1200 s gave rise to amorphous Ge deposits when laser irradiation was not applied, whereas laser irradiation led to a polycrystalline branched structure. The length and width of the branched structures were about 9.58 and 2.18 μm, respectively, and the average grain size of the sample was ∼76 nm. The morphology and size of the Ge deposits could be controlled by adjusting the deposition time under laser irradiation. The mechanism of growth of the Ge deposits under laser irradiationmore » was discussed in detail.« less

Authors:
;  [1];  [2]; ;  [3];  [4];  [3]
  1. State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University, Changchun 130012 (China)
  2. (China)
  3. Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, Siping 136000 (China)
  4. School of Chemistry and Chemical Engineering, Harbin Institute of Technology, Harbin, 150001 (China)
Publication Date:
OSTI Identifier:
22730389
Resource Type:
Journal Article
Journal Name:
Materials Research Bulletin
Additional Journal Information:
Journal Volume: 93; Other Information: Copyright (c) 2017 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0025-5408
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; CRYSTAL GROWTH; DEPOSITS; ELECTRODEPOSITION; FILMS; FLUORINE COMPOUNDS; GERMANIUM CHLORIDES; GRAIN SIZE; IMIDAZOLES; LASER RADIATION; LIQUID LASERS; MOLTEN SALTS; MORPHOLOGY; POLYCRYSTALS; PULSED IRRADIATION; PULSES; TIN OXIDES; VAPORS

Citation Formats

Yu, Zhaoliang, Meng, Xiangdong, Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, Siping 136000, Hu, Yue, Yin, Mo, Yang, Peixia, and Li, Haibo. Pulsed laser irradiation-assisted electrodeposition of germanium in ionic liquid: From amorphous film to polycrystalline branched structures. United States: N. p., 2017. Web. doi:10.1016/J.MATERRESBULL.2017.05.008.
Yu, Zhaoliang, Meng, Xiangdong, Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, Siping 136000, Hu, Yue, Yin, Mo, Yang, Peixia, & Li, Haibo. Pulsed laser irradiation-assisted electrodeposition of germanium in ionic liquid: From amorphous film to polycrystalline branched structures. United States. doi:10.1016/J.MATERRESBULL.2017.05.008.
Yu, Zhaoliang, Meng, Xiangdong, Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, Siping 136000, Hu, Yue, Yin, Mo, Yang, Peixia, and Li, Haibo. Fri . "Pulsed laser irradiation-assisted electrodeposition of germanium in ionic liquid: From amorphous film to polycrystalline branched structures". United States. doi:10.1016/J.MATERRESBULL.2017.05.008.
@article{osti_22730389,
title = {Pulsed laser irradiation-assisted electrodeposition of germanium in ionic liquid: From amorphous film to polycrystalline branched structures},
author = {Yu, Zhaoliang and Meng, Xiangdong and Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, Siping 136000 and Hu, Yue and Yin, Mo and Yang, Peixia and Li, Haibo},
abstractNote = {Highlights: • Ge branched structures was prepared by electrodeposition in ([EMIm]Tf2N) ionic liquid with laser irradiation. • The crystallinity of Ge with laser irradiation is obviously improved compared to the Ge film without laser irradiation. • By controlling the deposition time, the nanostructures with different morphology and size are obtained. - Abstract: The effect of a pulsed laser on the electrodeposition of germanium on indium tin oxide glass in the ionic liquid 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide ([EMIm]Tf{sub 2}N) was investigated. Cyclic voltammetric analysis of GeCl{sub 4} in [EMIm]Tf{sub 2}N showed that laser irradiation produced a positive shift of the reduction potential and an increase in the reduction current. Laser irradiation influenced the morphology and crystallinity of the Ge deposits. A deposition time of 1200 s gave rise to amorphous Ge deposits when laser irradiation was not applied, whereas laser irradiation led to a polycrystalline branched structure. The length and width of the branched structures were about 9.58 and 2.18 μm, respectively, and the average grain size of the sample was ∼76 nm. The morphology and size of the Ge deposits could be controlled by adjusting the deposition time under laser irradiation. The mechanism of growth of the Ge deposits under laser irradiation was discussed in detail.},
doi = {10.1016/J.MATERRESBULL.2017.05.008},
journal = {Materials Research Bulletin},
issn = {0025-5408},
number = ,
volume = 93,
place = {United States},
year = {2017},
month = {9}
}