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〈논문〉 ZnO 나노입자 삽입을 이용한 유기태양전지 효율 향상
김강민(Kangmin Kim),정부영(Booyoung Jung),김정원(Jungwon Kim),김우철(Woochul Kim) 대한기계학회 2009 대한기계학회 춘추학술대회 Vol.2009 No.11
In organic photovoltaics, the thickness of active layer needs to be thick to absorb enough light, whereas the thickness better to be thin for efficient charge separation, i.e., small exciton diffusion length. There is a trade-off between thickness increase for enough light absorption and thickness decrease for efficient charge separation. The optimum thickness is around 100㎚ in previous works[1, 2]. In our research, by adapting the nonmetal ZnO nanoparticles, we scatter the light thereby effectively increase the light absorption. This results in increasing the energy conversion efficiency.