- Synthesis and Characterization of CuInS2 Semiconductor Nanoparticles and Evolution of Optical Properties via Surface Modification
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Hee-Seung Yang, Yoo-Jin Kim
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J Korean Powder Metall Inst. 2012;19(3):177-181.
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DOI: https://doi.org/10.4150/KPMI.2012.19.3.177
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- Copper composite materials have attracted wide attention for energy applications. Especially CuInS_2 has a desirable direct band gap of 1.5 eV, which is well matched with the solar spectrum. CuInS_2 nanoparticles could make it possible to develop color-tunable CuInS_2 nanoparticle emitter in the near-infrared region (NIR) for energy application and bio imaging sensors. In this paper, CuInS_2 nanoparticles were successfully synthesized by thermo-decomposition methods. Surface modification of CuInS_2 nanoparticles were carried out with various semiconductor materials (CdS, ZnS) for enhanced optical properties. Surface modification and silica coating of hydrophobic nanoparticles could be dispersed in polar solvent for potential applications. Their optical properties were characterized by UV-vis spectroscopy and photoluminescence spectroscopy (PL). The structures of silica coated CuInS_2 were observed by transmission electron microscopy (TEM).
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Citations
Citations to this article as recorded by  - Surface Treatment Method for Long-term Stability of CdSe/ZnS Quantum Dots
Hyun-Su Park, Da-Woon Jeong, Bum-Sung Kim, So-Yeong Joo, Chan-Gi Lee, Woo-Byoung Kim
Journal of Korean Powder Metallurgy Institute.2017; 24(1): 1. CrossRef - Effect of Carboxylic Acid on Optical Properties of CuInS2/ZnS Semiconductor Nanocrystals
Si-Hyun Ahn, Gyu-Che Choi, Yeun-Kyung Beak, Young-Kuk Kim, Yang-Do Kim
Journal of Korean Powder Metallurgy Institute.2012; 19(5): 362. CrossRef
- Synthesis of LiCoO2 Powders using Recycled Cobalt Precursors from Waste WC-Co Hard Metal
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Hee-Seung Yang, Jae-Hwan Pee, Yoo-Jin Kim
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J Korean Powder Metall Inst. 2011;18(3):277-282.
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DOI: https://doi.org/10.4150/KPMI.2011.18.3.277
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- [ LiCoO_2 ] a cathode material for lithium rechargeable batteries, was prepared using recycled Co_3O_4. First, the cobalt hydroxide powders were separated from waste WC-Co hard metal with acid-base chemical treatment, and then the impurities were eliminated by centrifuge method. Subsequently, Co_3O_4 powders were prepared by thermal treatment of resulting Co(OH)_2. By adding a certain amount of Li_2CO_3 and LiOHcdotH_2O, the LiCoO_2 was obtained by sintering for 10 h in air at 800°C. The synthesized LiCoO_2 particles were characterized by X-ray diffraction (XRD) and Scanning Electron Microscope (SEM) analysis.
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Citations to this article as recorded by - Fabrication of Flake-like LiCoO2Nanopowders using Electrospinning
Bon-Ryul Koo, Geon-Hyoung An, Hyo-Jin Ahn
Journal of Korean Powder Metallurgy Institute.2014; 21(2): 108. CrossRef
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