D-A-π-A organic dyes with fluorenyl-substituted bulky donor for efficient dye-sensitized solar cells
Improving light-harvesting efficiency and suppressing interfacial charge recombination are of paramount importance to the development of Cu (II/I) redox shuttle-based dye-sensitized solar cells (DSSCs). Here, we present a rational molecular engineering on D-A-π-A organic sensitizers featuring with f...
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
KeAi Communications Co. Ltd.
2023-12-01
|
| Series: | Green Chemical Engineering |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666952822000607 |
| _version_ | 1797640278550511616 |
|---|---|
| author | Weiwei Zhang Huiyun Jiang Miaojie Yu Jie Wang Dong Shi Wei-Hong Zhu Yongzhen Wu |
| author_facet | Weiwei Zhang Huiyun Jiang Miaojie Yu Jie Wang Dong Shi Wei-Hong Zhu Yongzhen Wu |
| author_sort | Weiwei Zhang |
| collection | DOAJ |
| description | Improving light-harvesting efficiency and suppressing interfacial charge recombination are of paramount importance to the development of Cu (II/I) redox shuttle-based dye-sensitized solar cells (DSSCs). Here, we present a rational molecular engineering on D-A-π-A organic sensitizers featuring with fluorenyl-substituted bulky donor (HY57, HY60, and HY61) for Cu (II/I) mediated DSSCs. By gradually enhancing conjugation and rigidity of the π-spacer and auxiliary acceptor moieties, the light-harvesting and electron-injection efficiencies can be simultaneously improved. The large size of fluorenyl-substituted arylamine donor together with abundant alkyl chains decorated on the molecular structures assist dense assembly of dye monolayer at surface of nanocrystalline TiO2, which largely suppress interfacial charge recombination losses. When applied in Cu (II/I) mediated DSSCs, the combination of an auxiliary acceptor of phenanthrene-fused-quinoxaline (PFQ) and a π-spacer of cyclopentadithiophene (CPDT) in dye HY61 results in a simultaneous enhancement in short-circuit current (JSC) and open-circuit voltage (VOC), thus improving the power conversion efficiency (PCE) from 7.3% for reference dye HY59 to 10.3% for HY61. This study demonstrates that rigid and fused building block is promising towards constructing highly efficient organic sensitizers. |
| first_indexed | 2024-03-11T13:29:35Z |
| format | Article |
| id | doaj.art-8fa23ec67289457a9c63cfaa2b735c5e |
| institution | Directory Open Access Journal |
| issn | 2666-9528 |
| language | English |
| last_indexed | 2024-03-11T13:29:35Z |
| publishDate | 2023-12-01 |
| publisher | KeAi Communications Co. Ltd. |
| record_format | Article |
| series | Green Chemical Engineering |
| spelling | doaj.art-8fa23ec67289457a9c63cfaa2b735c5e2023-11-03T04:15:13ZengKeAi Communications Co. Ltd.Green Chemical Engineering2666-95282023-12-0144393398D-A-π-A organic dyes with fluorenyl-substituted bulky donor for efficient dye-sensitized solar cellsWeiwei Zhang0Huiyun Jiang1Miaojie Yu2Jie Wang3Dong Shi4Wei-Hong Zhu5Yongzhen Wu6Key Laboratory for Advanced Materials and Institute of Fine Chemicals, Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, 200237, ChinaKey Laboratory for Advanced Materials and Institute of Fine Chemicals, Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, 200237, ChinaKey Laboratory for Advanced Materials and Institute of Fine Chemicals, Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, 200237, ChinaSchool of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu, 610054, ChinaSchool of Optoelectronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu, 610054, ChinaKey Laboratory for Advanced Materials and Institute of Fine Chemicals, Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, 200237, ChinaKey Laboratory for Advanced Materials and Institute of Fine Chemicals, Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai, 200237, China; Corresponding author.Improving light-harvesting efficiency and suppressing interfacial charge recombination are of paramount importance to the development of Cu (II/I) redox shuttle-based dye-sensitized solar cells (DSSCs). Here, we present a rational molecular engineering on D-A-π-A organic sensitizers featuring with fluorenyl-substituted bulky donor (HY57, HY60, and HY61) for Cu (II/I) mediated DSSCs. By gradually enhancing conjugation and rigidity of the π-spacer and auxiliary acceptor moieties, the light-harvesting and electron-injection efficiencies can be simultaneously improved. The large size of fluorenyl-substituted arylamine donor together with abundant alkyl chains decorated on the molecular structures assist dense assembly of dye monolayer at surface of nanocrystalline TiO2, which largely suppress interfacial charge recombination losses. When applied in Cu (II/I) mediated DSSCs, the combination of an auxiliary acceptor of phenanthrene-fused-quinoxaline (PFQ) and a π-spacer of cyclopentadithiophene (CPDT) in dye HY61 results in a simultaneous enhancement in short-circuit current (JSC) and open-circuit voltage (VOC), thus improving the power conversion efficiency (PCE) from 7.3% for reference dye HY59 to 10.3% for HY61. This study demonstrates that rigid and fused building block is promising towards constructing highly efficient organic sensitizers.http://www.sciencedirect.com/science/article/pii/S2666952822000607Dye-sensitized solar cellsFluorenyl-substituted bulky donorPhenanthrene-fused-quinoxalineElectron injectionPower conversion efficiency |
| spellingShingle | Weiwei Zhang Huiyun Jiang Miaojie Yu Jie Wang Dong Shi Wei-Hong Zhu Yongzhen Wu D-A-π-A organic dyes with fluorenyl-substituted bulky donor for efficient dye-sensitized solar cells Green Chemical Engineering Dye-sensitized solar cells Fluorenyl-substituted bulky donor Phenanthrene-fused-quinoxaline Electron injection Power conversion efficiency |
| title | D-A-π-A organic dyes with fluorenyl-substituted bulky donor for efficient dye-sensitized solar cells |
| title_full | D-A-π-A organic dyes with fluorenyl-substituted bulky donor for efficient dye-sensitized solar cells |
| title_fullStr | D-A-π-A organic dyes with fluorenyl-substituted bulky donor for efficient dye-sensitized solar cells |
| title_full_unstemmed | D-A-π-A organic dyes with fluorenyl-substituted bulky donor for efficient dye-sensitized solar cells |
| title_short | D-A-π-A organic dyes with fluorenyl-substituted bulky donor for efficient dye-sensitized solar cells |
| title_sort | d a π a organic dyes with fluorenyl substituted bulky donor for efficient dye sensitized solar cells |
| topic | Dye-sensitized solar cells Fluorenyl-substituted bulky donor Phenanthrene-fused-quinoxaline Electron injection Power conversion efficiency |
| url | http://www.sciencedirect.com/science/article/pii/S2666952822000607 |
| work_keys_str_mv | AT weiweizhang dapaorganicdyeswithfluorenylsubstitutedbulkydonorforefficientdyesensitizedsolarcells AT huiyunjiang dapaorganicdyeswithfluorenylsubstitutedbulkydonorforefficientdyesensitizedsolarcells AT miaojieyu dapaorganicdyeswithfluorenylsubstitutedbulkydonorforefficientdyesensitizedsolarcells AT jiewang dapaorganicdyeswithfluorenylsubstitutedbulkydonorforefficientdyesensitizedsolarcells AT dongshi dapaorganicdyeswithfluorenylsubstitutedbulkydonorforefficientdyesensitizedsolarcells AT weihongzhu dapaorganicdyeswithfluorenylsubstitutedbulkydonorforefficientdyesensitizedsolarcells AT yongzhenwu dapaorganicdyeswithfluorenylsubstitutedbulkydonorforefficientdyesensitizedsolarcells |