Enhancement of the yield of photoinduced charge separation in zinc porphyrin - Quantum dot complexes by a bis(dithiocarbamate) linkage

Shengye Jin; Mario Tagliazucchi; Ho Jin Son; Rachel D. Harris; Kenneth O. Aruda; David J. Weinberg; Alexander B. Nepomnyashchii; Omar K. Farha; Joseph T. Hupp; Emily A. Weiss

doi:10.1021/acs.jpcc.5b00074

Enhancement of the yield of photoinduced charge separation in zinc porphyrin - Quantum dot complexes by a bis(dithiocarbamate) linkage

Shengye Jin, Mario Tagliazucchi, Ho Jin Son, Rachel D. Harris, Kenneth O. Aruda, David J. Weinberg, Alexander B. Nepomnyashchii, Omar K. Farha, Joseph T. Hupp, Emily A. Weiss^*

^*Corresponding author for this work

Chemistry

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23 Scopus citations

Abstract

This paper describes the use of a phenyl bis(dithiocarbamate) (PBTC) linker to enhance the quantum yield of photoinduced electron transfer (eT) from a zinc porphyrin (ZnP) molecule (donor) to a CdSe quantum dot (QD) (acceptor), where quantum yield is defined as the fraction of photoexcited ZnP molecules in the sample that donate an electron to the QD. The PBTC ligand links the ZnP to the QD by coordinating to Cd²⁺ on the surface of the QD and the Zn metal center in ZnP via its dithiocarbamate groups. Compared with the donor-acceptor complex formed in the absence of PBTC linkers, where the ZnP molecule adsorbs to the QD through its carboxylate moiety, the PBTC linkage increases the binding affinity between ZnP molecules and QDs by an order of magnitude, from 1.0 × 10⁵ ± (0.7 × 10⁴) M^-1 to 1.0 × 10⁶ ± (1.0 × 10⁵) M^-1, and thereby increases the eT quantum yield by, for example, a factor of 4 (from 8% to 38%) within mixtures where the molar ratio ZnP:QD = 1:1.

Original language	English (US)
Pages (from-to)	5195-5202
Number of pages	8
Journal	Journal of Physical Chemistry C
Volume	119
Issue number	9
DOIs	https://doi.org/10.1021/acs.jpcc.5b00074
State	Published - Mar 5 2015

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
General Energy
Physical and Theoretical Chemistry
Surfaces, Coatings and Films

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10.1021/acs.jpcc.5b00074

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Jin, S., Tagliazucchi, M., Son, H. J., Harris, R. D., Aruda, K. O., Weinberg, D. J., Nepomnyashchii, A. B., Farha, O. K., Hupp, J. T., & Weiss, E. A. (2015). Enhancement of the yield of photoinduced charge separation in zinc porphyrin - Quantum dot complexes by a bis(dithiocarbamate) linkage. Journal of Physical Chemistry C, 119(9), 5195-5202. https://doi.org/10.1021/acs.jpcc.5b00074

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title = "Enhancement of the yield of photoinduced charge separation in zinc porphyrin - Quantum dot complexes by a bis(dithiocarbamate) linkage",

abstract = "This paper describes the use of a phenyl bis(dithiocarbamate) (PBTC) linker to enhance the quantum yield of photoinduced electron transfer (eT) from a zinc porphyrin (ZnP) molecule (donor) to a CdSe quantum dot (QD) (acceptor), where quantum yield is defined as the fraction of photoexcited ZnP molecules in the sample that donate an electron to the QD. The PBTC ligand links the ZnP to the QD by coordinating to Cd2+ on the surface of the QD and the Zn metal center in ZnP via its dithiocarbamate groups. Compared with the donor-acceptor complex formed in the absence of PBTC linkers, where the ZnP molecule adsorbs to the QD through its carboxylate moiety, the PBTC linkage increases the binding affinity between ZnP molecules and QDs by an order of magnitude, from 1.0 × 105 ± (0.7 × 104) M-1 to 1.0 × 106 ± (1.0 × 105) M-1, and thereby increases the eT quantum yield by, for example, a factor of 4 (from 8% to 38%) within mixtures where the molar ratio ZnP:QD = 1:1.",

author = "Shengye Jin and Mario Tagliazucchi and Son, {Ho Jin} and Harris, {Rachel D.} and Aruda, {Kenneth O.} and Weinberg, {David J.} and Nepomnyashchii, {Alexander B.} and Farha, {Omar K.} and Hupp, {Joseph T.} and Weiss, {Emily A.}",

note = "Publisher Copyright: {\textcopyright} 2015 American Chemical Society.",

year = "2015",

month = mar,

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doi = "10.1021/acs.jpcc.5b00074",

language = "English (US)",

volume = "119",

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journal = "Journal of Physical Chemistry C",

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publisher = "American Chemical Society",

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Jin, S, Tagliazucchi, M, Son, HJ, Harris, RD, Aruda, KO, Weinberg, DJ, Nepomnyashchii, AB, Farha, OK , Hupp, JT & Weiss, EA 2015, 'Enhancement of the yield of photoinduced charge separation in zinc porphyrin - Quantum dot complexes by a bis(dithiocarbamate) linkage', Journal of Physical Chemistry C, vol. 119, no. 9, pp. 5195-5202. https://doi.org/10.1021/acs.jpcc.5b00074

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T1 - Enhancement of the yield of photoinduced charge separation in zinc porphyrin - Quantum dot complexes by a bis(dithiocarbamate) linkage

AU - Jin, Shengye

AU - Tagliazucchi, Mario

AU - Son, Ho Jin

AU - Harris, Rachel D.

AU - Aruda, Kenneth O.

AU - Weinberg, David J.

AU - Nepomnyashchii, Alexander B.

AU - Farha, Omar K.

AU - Hupp, Joseph T.

AU - Weiss, Emily A.

PY - 2015/3/5

Y1 - 2015/3/5

N2 - This paper describes the use of a phenyl bis(dithiocarbamate) (PBTC) linker to enhance the quantum yield of photoinduced electron transfer (eT) from a zinc porphyrin (ZnP) molecule (donor) to a CdSe quantum dot (QD) (acceptor), where quantum yield is defined as the fraction of photoexcited ZnP molecules in the sample that donate an electron to the QD. The PBTC ligand links the ZnP to the QD by coordinating to Cd2+ on the surface of the QD and the Zn metal center in ZnP via its dithiocarbamate groups. Compared with the donor-acceptor complex formed in the absence of PBTC linkers, where the ZnP molecule adsorbs to the QD through its carboxylate moiety, the PBTC linkage increases the binding affinity between ZnP molecules and QDs by an order of magnitude, from 1.0 × 105 ± (0.7 × 104) M-1 to 1.0 × 106 ± (1.0 × 105) M-1, and thereby increases the eT quantum yield by, for example, a factor of 4 (from 8% to 38%) within mixtures where the molar ratio ZnP:QD = 1:1.

AB - This paper describes the use of a phenyl bis(dithiocarbamate) (PBTC) linker to enhance the quantum yield of photoinduced electron transfer (eT) from a zinc porphyrin (ZnP) molecule (donor) to a CdSe quantum dot (QD) (acceptor), where quantum yield is defined as the fraction of photoexcited ZnP molecules in the sample that donate an electron to the QD. The PBTC ligand links the ZnP to the QD by coordinating to Cd2+ on the surface of the QD and the Zn metal center in ZnP via its dithiocarbamate groups. Compared with the donor-acceptor complex formed in the absence of PBTC linkers, where the ZnP molecule adsorbs to the QD through its carboxylate moiety, the PBTC linkage increases the binding affinity between ZnP molecules and QDs by an order of magnitude, from 1.0 × 105 ± (0.7 × 104) M-1 to 1.0 × 106 ± (1.0 × 105) M-1, and thereby increases the eT quantum yield by, for example, a factor of 4 (from 8% to 38%) within mixtures where the molar ratio ZnP:QD = 1:1.

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JF - Journal of Physical Chemistry C

IS - 9

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Enhancement of the yield of photoinduced charge separation in zinc porphyrin - Quantum dot complexes by a bis(dithiocarbamate) linkage

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