Synthesis and photovoltaic properties of new [1,2,5]thiadiazolo[3,4-c]pyridine-based organic Broadly absorbing sensitizers for dye-sensitized solar cells |
| |
Authors: | Weijiang Ying Xiaoyu Zhang Xin Li Wenjun Wu Fuling Guo Jing Li Hans Ågren Jianli Hua |
| |
Institution: | 1. Key Laboratory for Advanced Materials and Institute of Fine Chemicals, East China University of Science and Technology, Shanghai 200237, China;2. Department of Theoretical Chemistry and Biology, School of Biotechnology, KTH Royal Institute of Technology, Stockholm 10691, Sweden |
| |
Abstract: | In this paper, by introducing 1,2,5]thiadiazolo3,4-c]pyridine (PT) as an auxiliary acceptor into the molecular design of organic sensitizers, we have synthesized four new dyes (PT1–PT4) for dye-sensitized solar cells (DSSCs) with triphenylamine or N,N-diphenylthiophen-2-amine as the donor units and thiophene or benzene as the π-bridges, respectively. All the structures, optical and electrochemical properties were fully characterized. Nanocrystalline TiO2 dye-sensitized solar cells were also fabricated using these dyes. Among them, PT2-based DSSCs showed the highest overall conversion efficiency of 6.11% with Voc=668 mV, Jsc=12.61 mA cm−2 and a fill factor (FF)=0.74 after a chenodeoxycholic acid (CDCA) treatment under standard illumination condition (100 mW cm−2 simulated AM 1.5 solar light). |
| |
Keywords: | [1 2 5]Thiadiazolo[3 4-c]pyridine N N-Diphenylthiophen-2-amine Sensitizer Dye-sensitized solar cells |
本文献已被 ScienceDirect 等数据库收录! |
|