人類在近年來將面對的最大問題為能源短缺，由於石油藏量與日漸減，價格卻是不停上升，為了填補能源缺口，有多種可行的替代性能源成為各國研究的重點，太陽能幾乎取之不盡的特性，使得太陽能電池被視為能夠填補能源缺口的可行方案之一。而新發展高分子太陽能電池由於其重量輕、可撓性等性質且可大面積低成本製程，引起了廣泛的注意。為了達到其商業化，必須從三個重點方向來考量：元件效率、穩定性，以及製程成本。

Human beings are facing an important problem of energy shortage. Due to the increasing oil price, several renewable energy sources are explored to fi ll the energy requirement gap between demand and supply. Polymer solar cells had been one of the most promising green energy technologies due to the possibility of achieving large-area, lightweight and fl exible devices with low fabrication cost. To reach the goal of cell commercialization, three important aspects have to be considered.Effi ciency, stability and production cost of the devices should be equally weighed in the development of polymer solar cells.