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In–CuInS2 nanocomposite film prepared by pulsed laser deposition using a single source precursor |
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| Authors: | Wolfgang Bensch Enrique Quiroga-González Lorenz Kienle Viola Duppel Doh-Kwon Lee Jürgen Janek |
| Institution: | 1. Institute for Inorganic Chemistry of the University of Kiel, Max-Eyth-Str. 2, 24118 Kiel, Germany;2. Institute of Material Science of the University of Kiel, Kaiserstr. 2, 24143 Kiel, Germany;3. Max Planck Institue for Solid State Research, Heisenbergstr. 1, 70569 Stuttgart, Germany;4. Institute for Physical Chemistry of the University of Giessen, Heinrich-Buff-Ring 58, 35392 Giessen, Germany |
| Abstract: | An In–CuInS2 nanocomposite film has been prepared by Pulsed Laser Deposition applying a single source precursor. X-ray powder diffraction, Raman spectroscopy and transmission electron microscopy observations evidence that the film consists of nanocrystals of elemental In and chalcopyrite type CuInS2 with sizes of 36 and 17 nm respectively. A detailed analysis of the electrical performance of the film suggests that the nanoparticles are in Ohmic contact and that the resistivity is mainly caused by the CuInS2 nanocrystals which are less conducting than the pure In metal. Irradiation of the film with light shows a photoconductive effect mainly with wavelengths larger than 515 nm and smaller than 850 nm. |
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