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Publication
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| Research Title |
Preparation of CdS-ZnS@CTA-montmorilloniteHybrid |
| Date of Distribution |
13 September 2013 |
| Conference |
| Title of the Conference |
RGJ - Ph.D. Congress XCVIII |
| Organiser |
Department of Chemistry, Khon Kaen University |
| Conference Place |
Faculty of Science, Khon Kaen University |
| Province/State |
Khon Kaen |
| Conference Date |
13 September 2013 |
| To |
13 September 2013 |
| Proceeding Paper |
| Volume |
98 |
| Issue |
98 |
| Page |
20 |
| Editors/edition/publisher |
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| Abstract |
Cadmium sulfide (CdS) and Zinc sulfide (ZnS) are semiconducting materials that have been used in various applications such as optoelectronic devices and biological fluorescence labeling [1,2]. Mixed CdS-ZnShas an attractive attention as the optical material in light emitting devices because of the size-tunable optical properties that are independent of chemical properties. Montmorillonite is a class of 2:1 layered clay minerals, that exhibits numerous useful properties including swelling behavior absorptive and cation exchange properties, and so on. Thus, synthesis of mixed CdS-ZnS in lowdimensional material to control the size and size distribution may improve the optical properties and make semiconductorsidealing use for optoelectronic applications.Here, mixed CdS-ZnS was synthesized in cetyltrimethylammonium (CTA) montmorollonite to by solid-liquid reaction. The aqueous solutions of CdCl2, ZnCl2 and Na2S·xH2O were mixed with a dispersion of CTA-montmorillonite and stirred overnight. The molar ratio of Cd(II) and Zn(II):S was 1:1. Hereafter, the hybrid was denoted as CdS-ZnS@CTA-montmorillonite. The product was characterized by powder XRD, TG-DTA, UV-Vis and photoluminescence spectroscopies. The increase of interlayer space of the product was 0.5 nm, indicating the incorporation of CdS-ZnS and/or CTA ions. The absorption onset was seen at 518 nm, attributing to the existence of mixed CdS-ZnS in CTA-montmorillonite. The appearance of the emission band at 413, 440 and 469 nm resulted from the emissions of ZnS (413 and 440 nm) and CdS (469 nm) in the interlayer space. The PL intensity of CdS-ZnS@CTA-montmorillonite was higher than that of pure CdS and ZnS, suggesting that PL intensity of mixed CdS-ZnS could be improved by the environment of CTA-montmorillonite. |
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| Peer Review Status |
มีผู้ประเมินอิสระ |
| Level of Conference |
ชาติ |
| Type of Proceeding |
Abstract |
| Type of Presentation |
Poster |
| Part of thesis |
true |
| ใช้สำหรับสำเร็จการศึกษา |
ไม่เป็น |
| Presentation awarding |
false |
| Attach file |
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| Citation |
0
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Journal Publication
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