Kim, Inho Fleetham, Tyler Choi, Hyung-Woo Choi, Jea-Young Lee, Taek Sung Jeong, Doo Seok Lee, Wook Seong Lee, Kyeong Seok Lee, Yong-Kyun Alford, Terry L. Li, Jian 2024-01-20T09:00:44Z 2024-01-20T09:00:44Z 2021-09-02 2014-10 1566-1199 https://pubs.kist.re.kr/handle/201004/126325 We demonstrate the power conversion efficiency of bulk heterojunction organic solar cells can be enhanced by introducing Ag nanoparticles into organic exciton blocking layer. The Ag nanoparticles were incorporated into the exciton blocking layer by thermal evaporation. Compared with the conventional cathode contact materials such as Al, LiF/Al, devices with Ag nanoparticles incorporated in the exciton blocking layer showed lower series resistances and higher fill factors, leading to a 3.2% power conversion efficiency with a 60 nm active layer; whereas, the conventional devices have only 2.0-2.3% power conversion efficiency. Localized surface plasmon resonances by the Ag nanoparticles and their contribution to photocurrent were also discussed by simulating optical absorptions using a FDTD (finite-difference-time-domain) method. (C) 2014 Elsevier B.V. All rights reserved. English ELSEVIER ELECTRON-TRANSPORT PERFORMANCE CATHODE Enhanced power conversion efficiency of organic solar cells by embedding Ag nanoparticles in exciton blocking layer Article 10.1016/j.orgel.2014.06.020 1 ORGANIC ELECTRONICS, v.15, no.10, pp.2414 - 2419 ORGANIC ELECTRONICS 15 10 2414 2419 scie scopus 000341290000034 2-s2.0-84905179977 Materials Science, Multidisciplinary Physics, Applied Materials Science Physics Article ELECTRON-TRANSPORT PERFORMANCE CATHODE Organic solar cells Exciton blocking layer Surface plasmon resonance Ag nanoparticle