發明
美國
14/026,194
US 9,093,645 B2
有機太陽能電池製作方法Manufacturing method of the organic solar cell
國立成功大學
2015/07/28
有機太陽能電池目前絕大部份是以掺混(blend)製程的塊材異質接面bulk heterojunction (BHJ)來製作,其中大多是用共軛高分子poly(3-hexylthiophene-2,5-diyl)(P3HT)當施體(Donor)跟奈米碳材[6,6]-penyl-C61-butyric-acid-methyl-ester(PCBM)當授體(Acceptor)所掺混(blend)的溶液來做光吸收的主動層(Active layer),當旋塗有機主動層(Active layer)時,主動層厚度越厚,電流密度(Jsc)也越高,但充填因子(FF)也越低;當有機主動層厚度越薄時,電流密度(Jsc)也越低,但充填因子(FF)也越高,如何讓太陽能電池的元件達到電流密度(Jsc)及充填因子(FF)兩方面同時提高,進而提升有機太陽能元件之能量轉換效率也成為本專利探討之課題。 The invention relates to a manufacturing method of an organic solar cell. First deposit in order a first electrode and a first transmission layer on a substrate. Then coat a photoresist layer having a preferred thickness ranging from 1000nm to 1600nm on the surface of the first transmission layer by a spin coater at a preferred spin-coating speed ranging from 3000rpm and 6000rpm for 30 seconds. Then develop an area by a photolithograph process, and coat an organic active layer in the area and on the surface of the photoresist layer by use of the spin coater at a preferred spin-coating speed ranging from 500rpm and 800rpm, in which the organic active layer has a thickness ranging from 230nm to 320nm at 500rpm. Final deposit a second transmission layer and a second electrode on the organic active layer to obtain the organic solar cell.
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