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Synthesis and Physico-Chemical Properties of Homoleptic Copper(I) Complexes with Asymmetric Ligands as a DSSC Dye

Authors :
Tomohiko Inomata
Mayuka Hatano
Yuya Kawai
Ayaka Matsunaga
Takuma Kitagawa
Yuko Wasada-Tsutsui
Tomohiro Ozawa
Hideki Masuda
Source :
Molecules, Vol 26, Iss 22, p 6835 (2021)
Publication Year :
2021
Publisher :
MDPI AG, 2021.

Abstract

To develop low-cost and efficient dye-sensitized solar cells (DSSCs), we designed and prepared three homoleptic Cu(I) complexes with asymmetric ligands, M1, M2, and Y3, which have the advantages of heteroleptic-type complexes and compensate for their synthetic challenges. The three copper(I) complexes were characterized by elemental analysis, UV-vis absorption spectroscopy, and electrochemical measurements. Their absorption spectra and orbital energies were evaluated and are discussed in the context of TD-DFT calculations. The complexes have high VOC values (0.48, 0.60, and 0.66 V for M1, M2, and Y3, respectively) which are similar to previously reported copper(I) dyes with symmetric ligands, although their energy conversion efficiencies are relatively low (0.17, 0.64, and 2.66%, respectively).

Details

Language :
English
ISSN :
14203049
Volume :
26
Issue :
22
Database :
Directory of Open Access Journals
Journal :
Molecules
Publication Type :
Academic Journal
Accession number :
edsdoj.3046f27f0f8743c3bc846a79b2943df9
Document Type :
article
Full Text :
https://doi.org/10.3390/molecules26226835