【摘要】 本文介绍了共轭聚合物的光学性质及其在光学元件上的应用。主链由不饱和π－键组成的共轭聚合物具有带隙，其值与分子结构有关，一般在１．０～３．５ｅＶ与可见光能量相当，因此在一定条件下都显示特殊的颜色。随着掺杂不仅发生从绝缘体向金属转变，其颜色也发生明显变化。这种光学特性可用于电发光二极管，电致变色，光致变色，热致变色，溶剂变色等新型的光学元件。关键词更多还原

【Abstract】 A review is give n on optical propertiesof conjugated polymers and its application tooptoelectronic functional devices. Polymers withhighly extended conjugated electron systems in theirmain chains have band gaps ranging mostly between1.0～3. 5eV,resulting in the characteristic colordepending on molecular structure. The opticalproperties of a conjugated polymer change drasticallyhassociation withan insulator-metal transitionupon doping. The applications of these novelcharacteristics in optoelectronics,such as light-emittirig diodes, color switching,optial record andmemory,thermochromism and solvatochromism etc.are introduced and reviewed.更多还原