Na, Seok-In Yu, Byung-Kwan Kim, Seok-Soon Vak, Doojin Kim, Tae-Soo Yeo, Jun-Seok Kim, Dong-Yu 2024-01-20T19:00:15Z 2024-01-20T19:00:15Z 2021-09-05 2010-08 0927-0248 https://pubs.kist.re.kr/handle/201004/131203 We report on cost-effective ITO-free organic solar cells (OSCs) fabricated by a spray deposition method. All solution-processable layers of solar cells-a highly conductive poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) layer and a photoactive layer based on poly(3-hexylthiophene) (P3HT) and 1-(3-methoxycarbonyl)-propyl-1-phenyl-(6,6)C-61 (PCBM)-were spray-coated. PEDOT:PSS anode films with various thicknesses were prepared by controlling the spray deposition time. The transmittance and sheet resistance of PEDOT:PSS anodes were varied from 89.0% to 67.4% and from 358 to 63.3 Omega/squares, respectively, corresponding to an increase in film thickness. The best device exhibited a high power conversion efficiency of 2.17% under 100 mW cm(-2) illumination with air mass (AM) 1.5 global (G) condition. More importantly, the efficiency of the fully spray-coated OSC with the PEDOT:PSS anode was comparable to that of conventional ITO-based devices, demonstrating the feasibility of fabricating all-spray-deposited OSCs without a conventional spin-coating method and the possibility of replacing the costly vacuum-deposited indium tin oxide (ITO) with highly conductive polymer films fabricated by inexpensive spray deposition techniques. (C) 2010 Elsevier B.V. All rights reserved. English ELSEVIER POLYMER EFFICIENT PERFORMANCE FABRICATION ELECTRODES Fully spray-coated ITO-free organic solar cells for low-cost power generation Article 10.1016/j.solmat.2010.01.003 1 SOLAR ENERGY MATERIALS AND SOLAR CELLS, v.94, no.8, pp.1333 - 1337 SOLAR ENERGY MATERIALS AND SOLAR CELLS 94 8 1333 1337 scie scopus 000278959500006 2-s2.0-77953363731 Energy & Fuels Materials Science, Multidisciplinary Physics, Applied Energy & Fuels Materials Science Physics Article POLYMER EFFICIENT PERFORMANCE FABRICATION ELECTRODES Organic solar cells Bulk-heterojunction Conjugated polymers Spray coatings Polymer anodes