Room-temperature synthesis of Cu2-xE (E = S, Se) nanotubes with hierarchical architecture as high-performance counter electrodes of quantum-dot-sensitized solar cells

Chen, Xin Qi, Li, Zhen, Bai, Yang, Sun, Qiao, Wang, Lian Zhou and Dou, Shi Xue (2015) Room-temperature synthesis of Cu2-xE (E = S, Se) nanotubes with hierarchical architecture as high-performance counter electrodes of quantum-dot-sensitized solar cells. Chemistry - A European Journal, 21 3: 1055-1063. doi:10.1002/chem.201405354


Author Chen, Xin Qi
Li, Zhen
Bai, Yang
Sun, Qiao
Wang, Lian Zhou
Dou, Shi Xue
Title Room-temperature synthesis of Cu2-xE (E = S, Se) nanotubes with hierarchical architecture as high-performance counter electrodes of quantum-dot-sensitized solar cells
Journal name Chemistry - A European Journal   Check publisher's open access policy
ISSN 0947-6539
1521-3765
Publication date 2015-01-12
Year available 2015
Sub-type Article (original research)
DOI 10.1002/chem.201405354
Open Access Status
Volume 21
Issue 3
Start page 1055
End page 1063
Total pages 9
Place of publication Weinheim, Germany
Publisher Wiley-VCH Verlag
Collection year 2015
Language eng
Formatted abstract
Copper chalcogenide nanostructures (e.g. one- dimensional nanotubes) have been the focus of interest because of their unique properties and great potential in various applications. Their current fabrications mainly rely on high-temperature or complicated processes. Here, with the assistance of theoretical prediction, we prepared Cu2−xE (E=S, Se) micro-/nanotubes (NTs) with a hierarchical architecture by using copper nanowires (Cu NWs), stable sulfur and selenium powder as precursors at room temperature. The influence of reaction parameters (e.g. precursor ratio, ligands, ligand ratio, and reaction time) on the formation of nanotubes was comprehensively investigated. The resultant Cu2−xE (E=S, Se) NTs were used as counter electrodes (CE) of quantum-dot-sensitized solar cells (QDSSCs) to achieve a conversion efficiency (η) of 5.02 and 6.25 %, respectively, much higher than that of QDSSCs made with Au CE (η=2.94 %).
Keyword Copper chalcogenides
Counter electrodes
Nanotubes
Quantum dots
Room temperature synthesis
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

 
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