4.7 Article

Effect of electron beam irradiation on chemically synthesized nanoflake-like CdS electrodes for photoelectrochemical applications

期刊

COLLOIDS AND SURFACES B-BIOINTERFACES
卷 164, 期 -, 页码 255-261

出版社

ELSEVIER SCIENCE BV
DOI: 10.1016/j.colsurfb.2018.01.036

关键词

Chemical bath deposition; Nanostructure; Photoelectrochemical cell; Electron beam irradiation

资金

  1. Dongguk University, Seoul, Korea Research Fund

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In this paper, we chemically synthesized interconnected nanoflake-like CdS thin films for photoelectrochemical solar cell applications and subsequently irradiated them with electron beam irradiation at various doses of irradiation. The as-synthesized and irradiated samples were characterized by means of X-ray diffraction (XRD), field emission scanning electron microscopy (FE-SEM), high-resolution transmission electron microscopy (HR-TEM), and electrochemical measurements. XRD and XPS results confirmed the formation of CdS with a hexagonal crystal structure. FE-SEM and HR-TEM studies confirmed the photoelectrochemical performance, which was dependent on the surface morphology. The calculated values for efficiency demonstrated an outstanding photoelectrochemical performance with a fill factor of 0.38 and efficiency of 3.06% at 30 kGy. The high photoelectrochemical performance may be due to the interconnected nanofiake-like nanostructure and higher active surface area of the CdS samples. These results show that the electron beam irradiation is capable as an electrode for photoelectrochemical solar cells. (C) 2018 Elsevier B.V. All rights reserved.

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