The study Perylene Derivatives Functional group for Thin Film of characteristic

• Main Authors: Chan-jung Hsu, 許展榮
• Other Authors: Shyh-Jiun Liu
• Format: Others
• Language: zh-TW
• Published: 2009
• Online Access: http://ndltd.ncl.edu.tw/handle/17566644238761845129

碩士 === 國立臺南大學 === 材料科學系碩士班 === 97 === Abstract This paper studies the subject of discussion by the laboratory synthesis of five different N-benzyl Perylene derivatives for organic thin film transistor active layer materials and by the Fourier transform infrared spectrometer and UV / visible light absorption spectrometry materials Structure and properties. The experiment is divided into two parts, the first part we will five different N-benzyl Perylene derivatives deposition thin film in the bottom contact (Bottom contact) structural elements, we compared the substrate film at room temperature and the different annealing temperatures Comparative analysis of electrical components differences. The second part we will different N-benzyl Perylene derivatives of the film deposition in the ITO glass substrate analysis, using absorption spectra and fluorescence excitation spectrum of research is different N-benzyl Perylene derivatives Films of differences. In the first part of the initiative, we found that film-forming material for after annealing treatment, electrical components have increased as the annealing temperature to enhance the trend. And active layer materials in the substrate film annealing temperature at 180 ℃ for the electrical components of the active layer than the film-forming temperature for the substrate at room temperature and confirmed the excellent electron-withdrawing group effect and three-dimensional obstacle is contained and will also enhance mobility. The second part of the absorption spectra we found that thin-film structure with the DDP of two sides connected on functional groups, these results in the absorption spectra to produce long-wavelength red shift and through software analysis for molecular π-π interaction of the absorption spectra also found with the annealing temperature increased to 220 ℃, the spectral red shift will be. Fluorescence excitation spectroscopy (PL) in the part, we found that PL peak shift of signal will have an impact carriers mobility, which is due to the molecular stacking process in the substrate, because of substrate materials and organic materials of surface energy not match, leading to the molecular stacking during the stress caused by the emergence of intermolecular, further produced a large amount of defects in the film of junction position, the transmission carrier capture by defects affect the carrier mobility.