| Autor: |
Katerski A; Laboratory of Thin Film Chemical Technologies, Department of Materials Science, Tallinn University of Technology, Tallinn, EE-19086, Estonia, atanas.katerski@ttu.ee., Kärber E, Acik IO, Dolgov L, Mere A, Sildos I, Mikli V, Krunks M |
| Jazyk: |
angličtina |
| Zdroj: |
Nanoscale research letters [Nanoscale Res Lett] 2014 Dec; Vol. 9 (1), pp. 2469. Date of Electronic Publication: 2014 Sep 14. |
| DOI: |
10.1186/1556-276X-9-494 |
| Abstrakt: |
The chemical spray pyrolysis method was used to deposit CuInS2 (CIS) thin films and Au nanoparticles (NPs) in two configurations: glass/Au-NP layer covered with CuInS2 film (Au-NP/CIS) and glass/CuInS2 films covered with Au-NP layer (CIS/Au-NP). According to X-ray diffraction (XRD), the spray of 2 mM HAuCl4 aqueous solution with a volume of 2.5 to 15 ml onto a glass substrate at 340°C results in metallic Au nanoparticles with a similar mean crystallite size in the range of 30 - 38 nm. The mean crystallite sizes remain in the range of 15 - 20 nm when grown onto a CIS film. The prepared films show plasmonic light absorption with increasing intensity in the spectral range of 500- 800 nm when increasing the volume of HAuCl4 solution sprayed. When compared to bare CIS on glass, the absorptance was increased ca. 4.5 times in the case of glass/Au-NP/CIS and ca. 3 times in the case of glass/CIS/Au-NP configuration. The glass/Au-NP/CIS configuration had an advantage since Au-NP could be embedded without chemically damaging the CIS. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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