指導教授：王聖璋 博士 (Pro.S-C Wang) 學生 : 黃伯嘉 (Bo-Jia Huang) 2015/11/11 Temperature effects on the growth of SnS nanosheet structure using thermal decomposition Bo-Jia Huang, Jyun-Jia Huang, Sheng-Chang Wang* Department of Mechanical Engineering, Southern Taiwan University Tainan, TAIWAN *

Abstract

3 In this research, Tin sulfide (SnS) nanostructure were synthesized in oleylamine solution using thermal decomposition method. The sulfur and tin oleate were used as the S and Sn sources, respectively. Various decomposition temperature, were conducted to growth the SnS powders in Ar for min. The morphology, electrical and optical properties of SnS film was characterized by SEM,TEM, XRD and UV-Vis.

Introduction

5 SnS is a narrow band gap IV-VI semiconductor, which are optically active in the near-infrared and infrared. SnS band gad between that of Si (1.12 eV) and GaAs (1.43 eV) [1]. It has a high absorption coefficient (α>10 4 cm −1 ),and has absorbs the solar spectrum best to be able the crack value (~1.3 eV) [2].The theory electro-optic transfer efficiency can reaches as high as above 25%[3] In the past decades, these semiconductor attract great interest for their application in photovoltaics, near-infrared detectors and biomedical application.

Experimental

7 In this study, chemical oleic acid, (OA, 90%, SHOWA, Japan), and commercial SnO powder (Riedel-de Haen, Germany) were used to form the tin oleate complex, and S powder dissolve in Oleylamine (OLA, 90%, ACROS), were used as the coordinating solvent and a phase transformation controller reagent. The detail synthesis procedure and characterization were shown in Fig. 1. SnO 1 mmolOA 3 mmol Heat to 310°C for 60 min and stir in Argon Sn(OA) 2 5 ml Hexane and 15 ml ethanol contrifugation 5000 rpm with 30 min drying 100°C with 20 min fig1. Flow chart of experimental procedure.

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