PMID- 37836675 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20231020 IS - 1420-3049 (Electronic) IS - 1420-3049 (Linking) VI - 28 IP - 19 DP - 2023 Sep 27 TI - Ternary Organic Solar Cells by Small Amount of Efficient Light Absorption Polymer PSEHTT as Third Component Materials. LID - 10.3390/molecules28196832 [doi] LID - 6832 AB - We prepared ternary organic solar cells (OSCs) by incorporating the medium wavelength absorption polymer PSEHTT into the PM6:L8-BO binary system. The power conversion efficiency (PCE) is improved from 15.83% to 16.66%. Although the fill factor (FF) is slightly reduced, the short-circuit current density (J(SC)) and open-circuit voltage (V(OC)) are significantly increased at the same time. A small amount of PSEHTT has a broad absorption spectrum in the short wavelength region and has good compatibility with PM6, which is conducive to fine-tuning the photon collection and improving the J(SC). In addition, the highest occupied molecular orbital (HOMO) energy level of PSEHTT is deeper than that of PM6, which broadens the optical bandgap. This study provides an effective method to fabricate high-performance ternary OSCs by using a lower concentration of PSEHTT with PM6 as a hybrid donor material, which ensures a better surface and bulk morphology, improves photon collection, and broadens the optical bandgap. FAU - Zhang, Han AU - Zhang H AD - Institute of Physics and Electronic Information, Yunnan Normal University, Kunming 650500, China. FAU - Jia, Songrui AU - Jia S AUID- ORCID: 0000-0003-0895-7678 AD - National and Local Joint Engineering Laboratory for Synthetic Technology of High Performance Polymer, College of Chemistry, Jilin University, Changchun 130012, China. AD - Engineering Research Center of Special Engineering Plastics, Ministry of Education, College of Chemistry, Jilin University, Changchun 130012, China. AD - Key Laboratory of High Performance Plastics, Ministry of Education, College of Chemistry, Jilin University, Changchun 130012, China. FAU - Liu, Zhiyong AU - Liu Z AD - Institute of Physics and Electronic Information, Yunnan Normal University, Kunming 650500, China. AD - Yunnan Key Laboratory of Optoelectronic Information Technology, Kunming 650500, China. AD - Key Laboratory of Advanced Technique & Preparation for Renewable Energy Materials, Ministry of Education, Yunnan Normal University, Kunming 650500, China. FAU - Chen, Zheng AU - Chen Z AUID- ORCID: 0000-0002-5567-522X AD - National and Local Joint Engineering Laboratory for Synthetic Technology of High Performance Polymer, College of Chemistry, Jilin University, Changchun 130012, China. AD - Engineering Research Center of Special Engineering Plastics, Ministry of Education, College of Chemistry, Jilin University, Changchun 130012, China. AD - Key Laboratory of High Performance Plastics, Ministry of Education, College of Chemistry, Jilin University, Changchun 130012, China. LA - eng GR - 202305AF150012/Yunnan Expert Workstation/ GR - 202205AF150008/Yunnan Expert Workstation/ GR - 2022SCP005/Spring City Plan: the High-level Talent Promotion and Training Project of Kunming/ GR - 20220301018GX/Major Science and Technology Projects for Independent Innovation of China FAW Group Co., Ltd./ PT - Journal Article DEP - 20230927 PL - Switzerland TA - Molecules JT - Molecules (Basel, Switzerland) JID - 100964009 SB - IM PMC - PMC10574318 OTO - NOTNLM OT - carrier recombination OT - exciton dissociation OT - light absorption OT - ternary OSCs COIS- The authors declare no conflict of interest. EDAT- 2023/10/14 10:45 MHDA- 2023/10/14 10:46 PMCR- 2023/09/27 CRDT- 2023/10/14 01:19 PHST- 2023/09/09 00:00 [received] PHST- 2023/09/24 00:00 [revised] PHST- 2023/09/26 00:00 [accepted] PHST- 2023/10/14 10:46 [medline] PHST- 2023/10/14 10:45 [pubmed] PHST- 2023/10/14 01:19 [entrez] PHST- 2023/09/27 00:00 [pmc-release] AID - molecules28196832 [pii] AID - molecules-28-06832 [pii] AID - 10.3390/molecules28196832 [doi] PST - epublish SO - Molecules. 2023 Sep 27;28(19):6832. doi: 10.3390/molecules28196832.