Pulsed laser deposition of single-crystalline Cu7In3-CuIn0.8Ga0.2Se2 core-shell nanowiresReportar como inadecuado




Pulsed laser deposition of single-crystalline Cu7In3-CuIn0.8Ga0.2Se2 core-shell nanowires - Descarga este documento en PDF. Documentación en PDF para descargar gratis. Disponible también para leer online.

Nanoscale Research Letters

, 9:650

First Online: 02 December 2014Received: 08 October 2014Accepted: 25 November 2014

Abstract

Single-crystalline Cu7In3-CuIn0.8Ga0.2Se2 CI-CIGS core-shell nanowires are fabricated by pulsed laser deposition with Ni nanoparticles as catalyst. The CI-CIGS core-shell nanowires are made up of single-crystalline CI cores surrounded by single-crystalline CIGS shells. The CI-CIGS nanowires are grown at a considerably low temperature 350°C ~ 450°C by vapor-liquid-solid mode combined with vapor-solid mode. The distribution density of the nanowires increases with the increasing of the deposition duration, and the substrate temperature determines the lengths of the nanowires. The U-V absorption spectra of the CIGS thin films with and without the CI-CIGS core-shell nanowires demonstrate that the CI-CIGS nanowires can remarkably enhance the absorption of CIGS thin films in the spectrum range of 300 to 900 nm.

PACS61.46. + w; 61.41.e; 81.15.Fg; 81.07.b

KeywordsPulsed laser deposition Nickel catalyst CuIn0.8Ga0.2Se2 core-shell nanowires Light absorption AbbreviationsCIGSCuIn0.8Ga0.2Se2

EDSEnergy-dispersive spectroscopy

FESEMField emission scanning electron microscopy

FFTfast Fourier transform

HRTEMHigh-resolution transmission electron microscopy

PLDPulsed laser deposition

SEMScanning electron microscopy

TEMTransmission electron microscopy

VLSVapor-liquid-solid

VSVapor-solid

XRDX-ray diffraction.

Electronic supplementary materialThe online version of this article doi:10.1186-1556-276X-9-650 contains supplementary material, which is available to authorized users.

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Autor: Yu Zhao - Hui Li - Yan-Yan Zhu - Lei-Lei Guan - Yan-Li Li - Jian Sun - Zhi-Feng Ying - Jia-Da Wu - Ning Xu

Fuente: https://link.springer.com/







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