High efficiency co-sensitized solar cell based on luminescent lanthanide complexes with pyridine-2,6-dicarboxylic acid ligands

Xin Wang, Yu Lin Yang, Ping Wang, Liang Li, Rui Qing Fan, Wenwu Cao, Bin Yang, Hui Wang, Jing Yao Liu

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

Two lanthanide complexes, Ln(HPDA) 3·4EtOH (Ln = Tb, Dy) (H 2PDA = pyridine-2,6-dicarboxylic acid, EtOH = ethanol), have been successfully synthesized using hydrothermal or solvothermal methods, and their crystal structures were analyzed by single crystal XRD. Both crystals have orthorhombic symmetry with space group Pbcn, exhibiting three-dimensional (3D) supramolecular architecture through hydrogen bonding interactions. The metal center was coordinated to nine atoms by three pyridine-2,6-dicarboxylic acid ligands. The nine-coordinated lanthanide metal complexes were assembled onto a nanocrystalline TiO 2 film to form co-sensitized photoelectrodes with N719 for dye-sensitized solar cells, and their photoelectrochemical performance was studied. In the tandem structure of composite electrodes, the energy levels of lanthanide metal complexes are reorganized in their single-crystal form, as verified by ab initio calculations. The co-sensitized systems are far superior for electron-injection and hole-recovery compared with single N719-sensitized systems. Luminescence properties were measured and electrochemical analysis was also performed on these complexes.

Original languageEnglish (US)
Pages (from-to)10619-10625
Number of pages7
JournalDalton Transactions
Volume41
Issue number35
DOIs
StatePublished - Sep 21 2012

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Lanthanoid Series Elements
Solar cells
Coordination Complexes
Ligands
Single crystals
Electron injection
Crystal symmetry
Electron energy levels
Luminescence
Hydrogen bonds
Ethanol
Crystal structure
Metals
Recovery
Atoms
Crystals
Electrodes
Composite materials
dipicolinic acid

All Science Journal Classification (ASJC) codes

  • Inorganic Chemistry

Cite this

Wang, Xin ; Yang, Yu Lin ; Wang, Ping ; Li, Liang ; Fan, Rui Qing ; Cao, Wenwu ; Yang, Bin ; Wang, Hui ; Liu, Jing Yao. / High efficiency co-sensitized solar cell based on luminescent lanthanide complexes with pyridine-2,6-dicarboxylic acid ligands. In: Dalton Transactions. 2012 ; Vol. 41, No. 35. pp. 10619-10625.
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High efficiency co-sensitized solar cell based on luminescent lanthanide complexes with pyridine-2,6-dicarboxylic acid ligands. / Wang, Xin; Yang, Yu Lin; Wang, Ping; Li, Liang; Fan, Rui Qing; Cao, Wenwu; Yang, Bin; Wang, Hui; Liu, Jing Yao.

In: Dalton Transactions, Vol. 41, No. 35, 21.09.2012, p. 10619-10625.

Research output: Contribution to journalArticle

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AU - Wang, Xin

AU - Yang, Yu Lin

AU - Wang, Ping

AU - Li, Liang

AU - Fan, Rui Qing

AU - Cao, Wenwu

AU - Yang, Bin

AU - Wang, Hui

AU - Liu, Jing Yao

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N2 - Two lanthanide complexes, Ln(HPDA) 3·4EtOH (Ln = Tb, Dy) (H 2PDA = pyridine-2,6-dicarboxylic acid, EtOH = ethanol), have been successfully synthesized using hydrothermal or solvothermal methods, and their crystal structures were analyzed by single crystal XRD. Both crystals have orthorhombic symmetry with space group Pbcn, exhibiting three-dimensional (3D) supramolecular architecture through hydrogen bonding interactions. The metal center was coordinated to nine atoms by three pyridine-2,6-dicarboxylic acid ligands. The nine-coordinated lanthanide metal complexes were assembled onto a nanocrystalline TiO 2 film to form co-sensitized photoelectrodes with N719 for dye-sensitized solar cells, and their photoelectrochemical performance was studied. In the tandem structure of composite electrodes, the energy levels of lanthanide metal complexes are reorganized in their single-crystal form, as verified by ab initio calculations. The co-sensitized systems are far superior for electron-injection and hole-recovery compared with single N719-sensitized systems. Luminescence properties were measured and electrochemical analysis was also performed on these complexes.

AB - Two lanthanide complexes, Ln(HPDA) 3·4EtOH (Ln = Tb, Dy) (H 2PDA = pyridine-2,6-dicarboxylic acid, EtOH = ethanol), have been successfully synthesized using hydrothermal or solvothermal methods, and their crystal structures were analyzed by single crystal XRD. Both crystals have orthorhombic symmetry with space group Pbcn, exhibiting three-dimensional (3D) supramolecular architecture through hydrogen bonding interactions. The metal center was coordinated to nine atoms by three pyridine-2,6-dicarboxylic acid ligands. The nine-coordinated lanthanide metal complexes were assembled onto a nanocrystalline TiO 2 film to form co-sensitized photoelectrodes with N719 for dye-sensitized solar cells, and their photoelectrochemical performance was studied. In the tandem structure of composite electrodes, the energy levels of lanthanide metal complexes are reorganized in their single-crystal form, as verified by ab initio calculations. The co-sensitized systems are far superior for electron-injection and hole-recovery compared with single N719-sensitized systems. Luminescence properties were measured and electrochemical analysis was also performed on these complexes.

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