[19a-P5-1~38] 12.5 有機太陽電池

▲ [19a-P5-4] Enhanced Performance of Polymer Solar Cells by Incorporating Metal Nanoparticles into PEDOT:PSS layer with Metallic Grating Top Electrode

〇(D)Putnin Thitirat^1,2、Ounnunkad Kontad²、Lertvachirapaiboon Chutiparn¹、Shinbo Kazunari¹、Kato Keizo¹、Kaneko Futao¹、Baba Akira¹ (1.Niigata Univ.、2.Chiang Mai Univ.)

キーワード：solar cell,organic polymer solar cell,surface plasmon resonance

In this work, we studied the enhancement of organic thin film solar cells by surface plasmon resonance (SPR) phenomena originated from grating-coupled technique and further improved their performance by metal nanoparticles. The devices of Al/P3HT: PCBM/Metal NPs:PEDOT:PSS/ITO were fabricated. The results from J-V curves indicated that the power conversion efficiency (PCE) of Al-coated grating substrate was 3.10 % which was better than that of flat substrate for 1.55 times. We further developed the Al-coated grating substrate by incorporated gold and silver nanoparticles into PEDOT:PSS layer. The PCE of Al-coated grating substrate with gold nanoparticles and silver nanoparticles were 3.25% and 3.17%, respectively. This indicated that the light absorption enhancement at the active layer is attributed to SPR excitation with strong near-field distributions penetrated into absorption polymer, which could lead to higher efficiencies due to the increased absorption, thus resulting in better current generation.