[16p-P13-1~21] 3.12 Nanoscale optical science and near-field optics

△ [16p-P13-5] Perfect Absorber for Absorption Enhancement of PC₆₁BM:P3HT

〇(B)Masaki Kondo¹, Takayuki Okamoto^2,3, Wakana Kubo¹ (1.TUAT, 2.RIKEN, 3.Tokyo Tech.)

Keywords:Perfect absorber, Thin organic solar cell, Plasmon

Perfect absorber consists of Ag stripes, PC₆₁BM:P3HT layer, and Al thin layer was fabricated for the aim of absorption enhancement of PC₆₁BM:P3HT. Its reflection spectrum was compared with the results obtained by RCWA simulations. We found that reflectivity of the perfect absorber was dramatically decreased under the polarization which excites plasmons, especially at the absorption edge of P3HT, indicating the absorption enhancement of PC₆₁BM:P3HT layer.