Novel synthesis of kesterite Cu₂ZnSnS₄ nanoflakes by successive ionic layer adsorption and reaction technique: Characterization and application

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• 作者：Sawanta S. Mali^a ; ^{malisawantasubhash@gmail.com} ; Bharmana M. Patil^a ; Chirayath A. Betty^b ; Popatrao N. Bhosale^c ; Young Woo Oh^d ; Sandesh R. Jadkar^e ; Rupesh S. Devan^f ; Yuan-Ron Ma^f ; Pramod S. Patil^a ; ^{psp_phy@unishivaji.ac.in}
• 关键词：Kesterite Cu2ZnSnS4 thin films ; XPS ; 1.85%conversion efficiency
• 刊名：Electrochimica Acta
• 出版年：2012
• 期刊代码：30_00134686
• 类别：ch
• 出版时间：1 April, 2012
• 卷：66
• 期：Complete
• 页码：216-221
• 文件大小：603 K

摘要

Novel nanoflakes of Cu₂ZnSnS₄ (CZTS) thin film were directly deposited on fluorine doped tin oxide (FTO)-coated glass substrates by the successive ionic layer adsorption and reaction (SILAR) method. The results of energy dispersive X-ray spectroscopy (EDX) indicate that these CZTS thin films are Cu rich and S poor. The combination of X-ray diffraction (XRD) results and Fourier Transform-Raman (FT-Raman) spectroscopy reveal that these thin films exhibit a strong preferential orientation of flakes along the [1 1 2] direction and that a small Cu_2鈭?em>xS phase exists in CZTS thin films. Photoelectrochemical characterization revealed a p-type photo-response when the films were illuminated in an aqueous Eu³⁺ redox electrolyte. The total conversion power of the CZTS cell is 1.85%under 30 mW/cm² illumination.