Theoretical insight into the influence of different molecular design strategies on photovoltaic properties for a series of POM-based dyes applied in dye-sensitized solar cells | |
Yu Gao; Zhi-Bin Lu | |
刊名 | New Journal of Chemistry |
2023-04-24 | |
期号 | 47页码:9501 |
英文摘要 | Theoretical calculations based on density functional theory (DFT) and time-dependent DFT (TD-DFT) are employed to investigate a series of polyoxometalate (POM)-based dyes by adopting different molecular design strategies, such as the introduction of a second donor or a change in p linker units. The p linker effects of boron dipyrromethene (BODIPY) derivatives such as BODIPY-dihydrofuran (BODIPY-F) and BODIPY-dihydrothiophene (BODIPY-T) were analyzed to understand their photophysical and photoelectrochemical properties. Compared to dye 1 with one triphenylamine donor, dye 2 with two triphenylamine donor groups has better harvest sunlight ability due to the broader absorption spectra. Dye 4 with the BODIPY-T p linker not only exhibits the broadest absorption spectra, largest ICT parameters due to the smallest aromaticity of BODIPY-T, largest short-circuit photocurrent density governed by the driving force for electron injection, and the largest open-circuit photovoltage connected with the electron recombination process and the energy shift of the conduction band (CB) among dyes 1–4, but also possesses the lowest interaction energy for the most stable dimer configuration resulting from the weakest van der Waals interaction, which can reduce dye aggregation. Dyes1–4 attached to the TiO2 (101) surface were modeled to estimate the interfacial electron transfer performance of DSSCs, and dyes 2–4 could quickly inject electrons into the semiconductor CB. The qualitative structure photovoltaic property relationship thus obtained may serve as a guide to tailor-design various properties of POM-based dyes for application in DSSC devices. |
内容类型 | 期刊论文 |
源URL | [http://ir.licp.cn/handle/362003/30643] |
专题 | 兰州化学物理研究所_固体润滑国家重点实验室 |
通讯作者 | Zhi-Bin Lu |
作者单位 | 1.Sciences Data Center, Lanzhou Institute of Chemical Physics, Chinese Academy of Science 2.Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Science 3.Institute of Functional Material Chemistry, National & Local United Engineering Lab for Power Battery, Key Laboratory of Polyoxometalate Science of Ministry of Education, Faculty of Chemistry, Northeast Normal University 4.tate Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Science |
推荐引用方式 GB/T 7714 | Yu Gao,Zhi-Bin Lu. Theoretical insight into the influence of different molecular design strategies on photovoltaic properties for a series of POM-based dyes applied in dye-sensitized solar cells[J]. New Journal of Chemistry,2023(47):9501. |
APA | Yu Gao,&Zhi-Bin Lu.(2023).Theoretical insight into the influence of different molecular design strategies on photovoltaic properties for a series of POM-based dyes applied in dye-sensitized solar cells.New Journal of Chemistry(47),9501. |
MLA | Yu Gao,et al."Theoretical insight into the influence of different molecular design strategies on photovoltaic properties for a series of POM-based dyes applied in dye-sensitized solar cells".New Journal of Chemistry .47(2023):9501. |
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