| Summary: | 碩士 === 淡江大學 === 化學學系碩士班 === 103 === Organic photovoltaic cells (OPV) utilizes organic material- which is chemically synthesized- to coat on the component: only a few hundred nanometers is required. By adjusting its energy gap, the solar cell could have a broader absorption range to the sunlight, which hypothetically would to achieve a higher absorption coefficient, and therefore better photoelectric conversion efficiency.
This thesis discusses the procedure for synthesizing the active layer of OPV. In the procedure, the 5,5,10,10-tetraphenyl-5,10-dihydro-indeno [2,1-a] -indene (TDI) is used as the basic template. The TDI is then combine with arylamine (electron donor fragment, D) and aryl-2-methyl-enemalononitrile (electron acceptor fragment, A) to form a D-TDI-A light-absorbing molecule. Calculation is then performed to determine the theoretically suitable electron donor fragments and electron acceptor fragments. Then based on the calculation result to synthesize the compound, which has better optical properties. The theoretical results and the experimental results are then compared with each other through analysis by optical instruments. The analysis result suggested that the Da-TDI-Aa is the compounds which has the widest range of absorbance.
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