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Home > Materials > Copper complexes for hole conductors and electrolytes
Copper complexes for hole conductors and electrolytes

The interest in copper-based electrolytes for dye-sensitized solar cells (e.g. Bai et al., Chem. Commun., 2011,47, 4376-4378) was triggered by the work on cobalt-based electrolytes (Feldt et al., J. Am. Chem. Soc., 2010, 132, 16714). Both the cobalt and copper complexes are one-electron mediators in contrast to the conventional two-electron redox couple iodide/tri-iodide, and therefore have the potential for higher voltage and efficiency in DSSCs. This has been verified by power conversion efficiencies of 34% under 1000 Lux artificial indoor light (Michaels et al., Chem. Sci. (2020), DOI: 10.1039/c9sc06145b) and >13 % at outdoor conditions (Cao et al., Joule (2018), DOI: 10.1016/j.joule.2018.03.017). In addition, copper complexes alone can constitute hole conducting materials suitable for solid state DSSC and perovskite solar cells. This has resulted in solid state DSSC with an efficiency of 11.7 % (Zhang, et al., Energy and Environmental Science 2018, 11 (7), 1779-1787).

The number of copper-complexes that could be used as hole conductors and in DSSC electrolytes is enormous. Dyenamo offers a selection of state-of-the-art copper complexes, other ones can be obtained on demand.


Overview

Counter ion TFSI TFSI Cl PF6
Complex
Cu(dmp)2 Standard material:
DN-Cu01
DN-Cu08
Standard material:
DN-Cu02

Available on demand
Cu(bpye)2 Available on demand Available on demand Available on demand
Cu(tmby)2 Standard material:
DN-Cu09
DN-Cu10
Available on demand Available on demand
Cu(dmby)2 Standard material:
DN-Cu11
DN-Cu12
Available on demand Available on demand




DN-Cu01

CuI(dmp)2TFSI





Full name:
bis-(2,9-dimethyl-1,10-phenanthroline)copper(I) bis(trifluoromethanesulfonyl)imide

CAS number:
1301639-09-7

Typical properties:
E01+/2+ (MeCN) = 0.90 V vs NHE
MW = 760.21 g/mol

References:

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DN-Cu02

CuII(dmp)2TFSI Cl





Full name:
bis-(2,9-dimethyl-1,10-phenanthroline)copper(II)bis(trifluoromethanesulfonyl)imide chloride

Typical properties:
E01+/2+ (MeCN) = 0.90 V vs NHE
MW = 795.66 g/mol

References:

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DN-Cu08

CuII(dmp)2(TFSI)2





Description:
DN-Cu08 is a copper(II) complex with excellent solubility in acetonitrile and many other solvents used for DSSC electrolytes.

Full name:
bis-(2,9-dimethyl-1,10-phenanthroline)copper(II) bis(bis(trifluoromethanesulfonyl)imide)

CAS number:
1301639-10-0

Typical properties:
E01+/2+ (MeCN) = 0.90 V vs NHE
MW = 1040.35 g/mol

References:
J. Am. Chem. Soc. 2016, 138, 15087-15096 DOI: 10.1021/jacs.6b10721

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DN-Cu09

CuI(tmby)2TFSI





Description:
Cu(tmby)2TFSI1/2 is a copper based redox couple with a slightly lower redox potential than the prototypical Cu(dmp)2 complex. It may be used for example in systems where Cu(dmp)2 does not provide sufficient driving force for regeneration or when slower recombination is required.

Full name:
bis-(4,4',6,6'-tetramethyl-2,2'-bipyridine)copper(I) bis(trifluoromethanesulfonyl)imide

Typical properties:
E01+/2+ (MeCN): 0.87 V vs SHE
MW = 768.27 g/mol

References:
  • J. Am. Chem. Soc. 2016, 138, 15087-15096 DOI: 10.1021/jacs.6b10721
  • Zhang, D., Stojanovic, M., Ren, Y. et al. Nat Commun 12, 1777 (2021). DOI: 10.1038/s41467-021-21945-3
  • Michaels, H. et al. Chem. Sci., 2020,11, 2895-2906, DOI: 10.1039/c9sc06145b


  • Select amount for quotation



    DN-Cu10

    CuII(tmby)2(TFSI)2





    Description:
    Cu(tmby)2TFSI1/2 is a copper based redox couple with a slightly lower redox potential than the prototypical Cu(dmp)2 complex. It may be used for example in systems where Cu(dmp)2 does not provide sufficient driving force for regeneration or when slower recombination is required.

    Full name:
    bis-(4,4',6,6'-tetramethyl-2,2'-bipyridine)copper(II) bis[bis(trifluoromethanesulfonyl)imide]

    Typical properties:
    E01+/2+ (MeCN): 0.87 V vs SHE
    MW = 1048.41 g/mol

    References:
  • J. Am. Chem. Soc. 2016, 138, 15087-15096 DOI: 10.1021/jacs.6b10721
  • Zhang, D., Stojanovic, M., Ren, Y. et al. Nat Commun 12, 1777 (2021). DOI: 10.1038/s41467-021-21945-3
  • Michaels, H. et al. Chem. Sci., 2020,11, 2895-2906, DOI: 10.1039/c9sc06145b


  • Select amount for quotation



    DN-Cu11

    Cu(dmby)2TFSI





    Description:
    Cu(dmby)2TFSI1/2 is a copper based redox couple with a slightly higher redox potential than the prototypical Cu(dmp)2 complex. It enables the construction of cells with high Voc (1.07 V with Y123 (DN-F05Y)) without compromising with device efficiency.

    Full name:
    bis-(6,6'-dimethyl-2,2'-bipyridine)copper(I) bis(trifluoromethanesulfonyl)imide

    CAS number:
    1882083-74-0

    Typical properties:
    E01+/2+ (MeCN): 0.97 V vs NHE
    MW = 721.17 g/mol

    References:
    J. Am. Chem. Soc. 2016, 138, 15087-15096 DOI: 10.1021/jacs.6b10721

    Select amount for quotation



    DN-Cu12

    Cu(dmby)2(TFSI)2





    Description:
    Cu(dmby)2TFSI1/2 is a copper based redox couple with a slightly higher redox potential than the prototypical Cu(dmp)2 complex. It enables the construction of cells with high Voc (1.07 V with Y123 (DN-F05Y)) without compromising with device efficiency.

    Full name:
    bis-(6,6'-dimethyl-2,2'-bipyridine)copper(II) bis[bis(trifluoromethanesulfonyl)imide]

    Typical properties:
    E01+/2+ (MeCN): 0.97 V vs SHE
    MW = 992.30 g/mol

    References:
    J. Am. Chem. Soc. 2016, 138, 15087-15096 DOI: 10.1021/jacs.6b10721

    Select amount for quotation



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