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层状GaS二维纳米片的制备及表征
发表时间：2020-03-31 浏览量：1655 下载量：251
| 全部作者： | 唐顼婉，段曦东 |
| 作者单位： | 湖南大学化学化工学院 |
| 摘 要： | 利用物理气相沉积法制备GaS二维纳米片，通过改变不同的生长条件对GaS纳米片实行可调控生长。采用光学显微镜（optical microscope，OM）、原子力显微镜（atomic force microscope，AFM）、激光共聚焦显微拉曼光谱仪（laser co-focusing micro-Raman spectrometer，LCRS）、扫描电子显微镜（scanning electron microscope，SEM）、X射线衍射仪（X-ray diffraction，XRD）及透射电子显微镜（transmission electron microscope，TEM）等分析仪器，对样品的化学成分及形貌结构进行一系列表征。结果表明：制备的GaS纳米片为三角形结构，横向尺寸为1～4 mm，样品所得最薄三角形纳米片的厚度为2.5 nm，纳米片内表面组成均匀，为六方晶系，单晶结构，结晶性好，可以长时间在空气中稳定存在。 |
| 关 键 词： | 物理化学；二维材料；物理气相沉积；硫化镓纳米片；可调控生长 |
| Title： | Preparation and characterization of layered GaS two-dimensional nanosheets |
| Author： | TANG Xuwan,DUAN Xidong |
| Organization： | College of Chemistry and Chemical Engineering, Hunan University |
| Abstract： | GaS two-dimensional nanosheets prepared through physical vapor deposition were regulated to grow by changing different growth conditions. Analytical instruments such as optical microscope (OM), atomic force microscope (AFM), laser co-focusing micro-Raman spectrometer (LCRS), scanning electron microscope (SEM), X-ray diffraction (XRD) and transmission electron microscope (TEM) were used to characterize the chemical composition and morphology of the sample. The results showed that the prepared GaS nanosheets had a triangular structure with a lateral dimension of 1-4 μm, and the thickness of the thinnest triangular nanosheets was 2.5 nm. In addition, the inner surface of the nanosheets had a uniform composition of hexagonal crystal system and single crystal structure with good crystallinity, which could remain stable in the air for a long time. |
| Key words： | physical chemistry; two-dimensional material; physical vapor deposition; gallium sulfide nanosheet; regulated growth |
| 发表期数： | 2020年3月第1期 |
| 引用格式： | 唐顼婉，段曦东. 层状GaS二维纳米片的制备及表征[J]. 中国科技论文在线精品论文，2020，13（1）：69-74. |
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