Diodes with light emitting materials fetch the attention with different emerging trends such as Optoelectronic devices, Solar cells, etc. are very crucial, revolutionary and fascinating from the research point of view. The main focus of this review is to explore conducting polymer such as Polyacetylene, which plays vital role in electroluminescent devices. In this case, an optical and electrical characteristics of light emitting diode with Al is used for the contacts of electron injection which upgrade the performance of light emitting diode in terms of quantum efficiency.