本論文主要是測量兩個不同分子量的側鏈型藍紫光有機共軛發光高分子 (Poly-Methylstibemethacrylate) PMMS,在不同壓力下的螢光光譜,以探討其幾何結構與電子結構之關係。隨著壓力的增加我們可以看到螢光光譜有紅位移的現象,藉著觀察其光譜,了解分子內部交互作用與光學性質的關係。 We measured the photoluminescence of blue-purple light-emitted side-chain organic conjugated polymers (Poly-Methylstibemethacrylate;PL) PMMS with two different molecular weigths under various pressures. Through this study,we could investigate the relationship between their geometry structures and electronic properties. We find that the PL spectrum has a red shift with the increase of pressure. By this observation, we can get insight the relationship of its inter-molecule interaction and optical properties.