Perovskite Photocatalysis. Methyl Viologen Induces Unusually Long-Lived Charge Carrier Separation in CsPbBr 3 Nanocrystals

Kobosko, Steven M.; DuBose, Jeffrey T.; Kamat, Prashant V.

doi:10.1021/acsenergylett.9b02573

Title: Perovskite Photocatalysis. Methyl Viologen Induces Unusually Long-Lived Charge Carrier Separation in CsPbBr ₃ Nanocrystals

Abstract

The strong binding between CsPbBr₃ nanocrystals and methyl viologen induces a long-lived charge-separated state following band gap excitation with important implications in photocatalytic processes. The unusually long-lived bleaching of the CsPbBr₃ excitonic peak in this case arises from the creation of a dipole with the hole residing in CsPbBr₃ and the electron in the surface-bound methyl viologen moiety.

Authors:

Kobosko, Steven M.;

;

Publication Date:: Wed Dec 11 00:00:00 EST 2019

Research Org.:: Univ. of Notre Dame, IN (United States)

Sponsoring Org.:: USDOE Office of Science (SC), Basic Energy Sciences (BES). Chemical Sciences, Geosciences, and Biosciences Division

OSTI Identifier:: 1580667

Alternate Identifier(s):: OSTI ID: 1582582

Grant/Contract Number:: FC02-04ER15533

Resource Type:: Published Article

Journal Name:: ACS Energy Letters

Additional Journal Information:: Journal Name: ACS Energy Letters Journal Volume: 5 Journal Issue: 1; Journal ID: ISSN 2380-8195

Publisher:: American Chemical Society

Country of Publication:: United States

Language:: English

Subject:: 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY

Citation Formats


                    Kobosko, Steven M., DuBose, Jeffrey T., and Kamat, Prashant V. Perovskite Photocatalysis. Methyl Viologen Induces Unusually Long-Lived Charge Carrier Separation in CsPbBr 3 Nanocrystals.  United States: N. p., 2019. 
Web.  doi:10.1021/acsenergylett.9b02573.

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                    Kobosko, Steven M., DuBose, Jeffrey T., & Kamat, Prashant V. Perovskite Photocatalysis. Methyl Viologen Induces Unusually Long-Lived Charge Carrier Separation in CsPbBr 3 Nanocrystals.  United States.  https://doi.org/10.1021/acsenergylett.9b02573

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                    Kobosko, Steven M., DuBose, Jeffrey T., and Kamat, Prashant V. Wed .  
"Perovskite Photocatalysis. Methyl Viologen Induces Unusually Long-Lived Charge Carrier Separation in CsPbBr 3 Nanocrystals".  United States.  https://doi.org/10.1021/acsenergylett.9b02573.

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@article{osti_1580667,

  title        = {Perovskite Photocatalysis. Methyl Viologen Induces Unusually Long-Lived Charge Carrier Separation in CsPbBr 3 Nanocrystals},

  author       = {Kobosko, Steven M. and DuBose, Jeffrey T. and Kamat, Prashant V.},

  abstractNote = {The strong binding between CsPbBr3 nanocrystals and methyl viologen induces a long-lived charge-separated state following band gap excitation with important implications in photocatalytic processes. The unusually long-lived bleaching of the CsPbBr3 excitonic peak in this case arises from the creation of a dipole with the hole residing in CsPbBr3 and the electron in the surface-bound methyl viologen moiety.},

  doi          = {10.1021/acsenergylett.9b02573},

  journal      = {ACS Energy Letters},

  number       = 1,

  volume       = 5,

  place        = {United States},

  year         = {Wed Dec 11 00:00:00 EST 2019},

  month        = {Wed Dec 11 00:00:00 EST 2019}

}

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Title: Perovskite Photocatalysis. Methyl Viologen Induces Unusually Long-Lived Charge Carrier Separation in CsPbBr 3 Nanocrystals

Abstract

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