| 초록 |
A novel organic semiconducting polymer for photovoltaic cells was synthesized and characterized. The numberaverage molecular weights (Mn) of the synthesized polymer was determined with gel permeation chromatography (GPC) using a polystyrene standard and found to be 14,900 (PDI = 1.86). The polymer was soluble in common organic solvents (i.e., chloroform, toluene, THF), and found to be thermally stable. Absorption maximum of a polymer was 498 nm in film state, and optical band-gap of the polymer was determined to be 2.09 eV from the absorption onset. We will examine the photovoltaic performance of the polymer from a thin film composed of a blend of a polymer and the fullerene derivative [6,6]-phenyl C61 butyric acid methyl ester (PCBM). |
