18.63% Efficiency of Ternary Organic Solar Cells Achieved via Nonhalogenated Solvent and Hot Spin‐Coating Process

• DOI: 10.1002/adfm.202315825
• Publication Date: 2024-03-05T09:15:08Z
• Authors: Tianhuan Huang; Shuang Geng; Dongjie Wang; Yang Zhang; Nan Weng; Xiao Li; Qiaogan Liao; Zheling Zhang; Jiangrong Lu; Jian Zhang
• Keywords: Spin Coating

Abstract The solubility problem of conjugated polymers in nonhalogenated solvents limits the application Organic solar cells (OSCs). By combining with a hot spin‐coating process, efficient PM6:BTP‐BO‐4F:GS‐ISO ternary OSCs are prepared by employing o‐xylene as solvent. After adding 10 wt% content GS‐ISO to PM6:BTP‐BO‐4F, surface morphology active layers is improved and charge extraction, transport, collection enhanced. Compared efficiency PM6:BTP‐BO‐4F (16.25%), an 18.63% achieved for OSCs. Moreover, 14.13% air. work provides new strategy preparing environmentally friendly using green solvents.