Polyvinyl Butyral Assisted Synthesis of SnS Nanofibers by Electrospinning Process

• Main Authors: Dung-yang Wu, 吳東陽
• Other Authors: I-Tseng Tang
• Format: Others
• Language: zh-TW
• Published: 2013
• Online Access: http://ndltd.ncl.edu.tw/handle/58159983988184178479

碩士 === 國立臺南大學 === 綠色能源科技學系碩士班 === 101 === Tin(Ⅱ) sulfide is a brown-black layered Ⅱ-Ⅵ compound semiconductor, whose elements are abundant on Earth store, and inexpensive, nontoxic, high performance, which makes it very suitable as a absorber layer of solar cells. In this study, we have successfully prepared SnS nanofibers using an electrospinning method with polyvinyl butyral assisted. We find the optimum fiber diameter by changing the viscosity, applied voltage, flow rate, and electrode distance. These fibers ware made of a polymer with a very small grains. The viscosities of precursor were measured with a LVDV Brookfield viscometer. Experimental results show that we prepared with good crystallinity and uniform diameter fibers. After High-temperature calcination of the above precursor fibers at 500 ℃ for 1 h, SnS nanoparticles with 20-30 nm in diameter were obtained. The crystal structure of particles and particle size has been characterized by scanning electron microscopy (SEM), energy dispersive spectrometer (EDS), X-ray diffraction (XRD), transmission electron microscopy (TEM), UV/Visible absorption spectrometer (UV-Vis), and thermogravimetry analyzer (TGA) .