Synthesis and Characterization of a New Series of Unsymmetrical Zinc Phthalocyanines for Application of Dye Sensitized Solar Cells.

• Main Authors: Chang Fu Chieh, 張富傑
• Other Authors: Chen Chin Ti
• Format: Others
• Language: zh-TW
• Published: 2013
• Online Access: http://ndltd.ncl.edu.tw/handle/66040460755461363711

碩士 === 國立臺灣師範大學 === 化學系 === 101 === Zinc-based phthalocyanines are attractive sensitizers for DSSCs because of their intense and long wavelength absorption and excellent photochemical and electrochemical stability. Three new zinc- phthalocyanines, 35TN, TThC and TThCA were synthesized and characterized by 1H NMR and mass spectrometry. Their HOMO and LUMO energy levels in solution and in solid state were estimated by differential pulse voltammetry, UV-visible absorption spectra, and AC-2 low energy photoelectron spectrometer, respectively. The electron distribution of molecules in excited state was investigated by density function theory calculation. Including DSSC testing, these results are compared with benchmark TT1, TT7 and 35T. Under standard global air mass (AM) 1.5, the power conversion efficiency is using dip and drop methods of fabricating solar cells, the overall power conversion efficiencies of these solar cells by dip(drop) method are 3.24 %、1.26 %、1.34 %、2.13 %、1.12 % and 1.42 % (1.47 %、1.88 %、1.73 %、1.33 %、0.93 % and 1.65 %) for phthalocyanine dyes TT1、TT7、TThC、TThCA、35T and 35TN。