摘要： Low cost photovoltaic materials and green solvent processing are important issues for commercial application of organic solar cells (OSCs). Here, we fabricated high-performance OSCs based on low-cost conjugated polymer PTQ10 as donor and small molecule n-type organic semiconductor HO-IDIC-2F as acceptor, using non-halogen tetrahydrofuran (THF) as processing solvent. The power conversion efficiency (PCE) of the as-cast OSCs reached 12.20%, which is comparable with the ones processed with chloroform (CF) (12.43%). Thermal stability of the active layer was also studied by thermal treatment at 100°C for 8 hours. As a result, the active layer morphology remained unchanged and the PCE of the devices still reached 12.13%, indicating a good thermal-stability of the PTQ10:HO-IDIC-2F blend film. As commonly known, for OSCs fabricated in larger scales, layer by layer (LL) method generally provide more advantages than the traditional D-A blend solution-processing method. Therefore, to test the compatibility of THF solvent in LL method, we fabricated the blade-coated LL devices with THF as a single type of solvent for both donor and acceptor, and the PCE could reach up to 11.85%. The surprisingly high performance of the blade-coated OSC based on green solvent indicates that PTQ10 is a promising donor to be processed in green solvent for LL technology in the future.