Chemical Functionalization of Molybdenum Disulfides

• Main Authors: Liu, Wei Shen, 劉威伸
• Other Authors: Lee, Yi Hsien
• Format: Others
• Language: zh-TW
• Published: 2015
• Online Access: http://ndltd.ncl.edu.tw/handle/4w74bn

碩士 === 國立清華大學 === 材料科學工程學系 === 104 === Our research dedicate to chemical functionalization and effect of Raman and PL that molecular induce, we conclude mechanism of rhodamine B and dimethylformamide, by chemical functionalization, electrons can transfer to molybdenum disulfide and change its optical and electric properties. We confirm that molecular cause molybdenum disulfide what effect is induced by Raman and Photoluminescence, observe distribution and uniformity of molecular by AFM. Finally, we measure device that are made of molybdenum disulfide and show that molecular functionalization change electrical properties of molybdenum disulfide indeed. According to results of Raman and PL, we can discern what effect molecular cause and conclude mechanism of molecular. Our research shows rhodamine B that has benzene and electron-withdrawing can cause molybdenum disulfide p-doping, however, dimethylformamide contains electron-donating and causes molybdenum disulfide n-doping. Our research offers results of chemical functionalization that we can refer to change electrical properties of molybdenum disulfide in future.