Výsledky vyhledávání - "David J. Weinberg"

Control of the Redox Activity of PbS Quantum Dots by Tuning Electrostatic Interactions at the Quantum Dot/Solvent Interface

Autor: Shichen Lian, Emily A. Weiss, Chen He, Alexander B. Nepomnyashchii, David J. Weinberg

Publikováno v: Journal of the American Chemical Society. 138:8847-8854

This paper describes the control of electron exchange between a colloidal PbS quantum dot (QD) and a negatively charged small molecule (9,10-anthraquinone-2-sulfonic acid sodium salt, AQ), through tuning of the charge density in the ligand shell of t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a2144bcd72cbf03ee963d202c770552b
https://doi.org/10.1021/jacs.6b03970

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Subpicosecond Photoinduced Hole Transfer from a CdS Quantum Dot to a Molecular Acceptor Bound Through an Exciton-Delocalizing Ligand

Autor: Mohamad S. Kodaimati, Shichen Lian, Rachel D. Harris, Emily A. Weiss, David J. Weinberg

Publikováno v: ACS Nano. 10:6372-6382

This paper describes the enhancement of the rate of hole transfer from a photoexcited CdS quantum dot (QD), with radius R = 2.0 nm, to a molecular acceptor, phenothiazine (PTZ), by linking the donor and acceptor through a phenyldithiocarbamate (PTC)

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bfeefa5b956e9318936875053ec5cfb6
https://doi.org/10.1021/acsnano.6b02814

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Light-Activated Protein Inhibition through Photoinduced Electron Transfer of a Ruthenium(II)–Cobalt(III) Bimetallic Complex

Autor: Emily A. Weiss, Mark D. Peterson, Robert J. Holbrook, Thomas J. Meade, David J. Weinberg

Publikováno v: Journal of the American Chemical Society. 137:3379-3385

We describe a mechanism of light activation that initiates protein inhibitory action of a biologically inert Co(III) Schiff base (Co(III)-sb) complex. Photoinduced electron transfer (PET) occurs from a Ru(II) bipyridal complex to a covalently attache

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::de31f6f6c9067336b0132b3e74ba9a29
https://doi.org/10.1021/jacs.5b00342

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Enhancement of the Yield of Photoinduced Charge Separation in Zinc Porphyrin–Quantum Dot Complexes by a Bis(dithiocarbamate) Linkage

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

Publikováno v: The Journal of Physical Chemistry C. 119:5195-5202

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

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::437953ffa6ed379f53a848d63ac2fc8e
https://doi.org/10.1021/acs.jpcc.5b00074

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Spin-Selective Charge Recombination in Complexes of CdS Quantum Dots and Organic Hole Acceptors

Autor: Emily A. Weiss, David J. Weinberg, Zane Khademi, Michał Malicki, Michael R. Wasielewski, Scott M. Dyar, Seth R. Marder

Publikováno v: Journal of the American Chemical Society. 136:14513-14518

This paper describes the mechanisms of charge recombination on both the nanosecond and microsecond time scales in a donor-acceptor system comprising thiol-modified bis(diarylamino)4,4'-biphenyl (TPD) molecules attached to a CdS quantum dot (QD) via t

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::985d67fbc3fa7e10267f3a85e0abc823
https://doi.org/10.1021/ja507301d

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Mechanisms for Adsorption of Methyl Viologen on CdS Quantum Dots

Autor: Stephen C. Jensen, David J. Weinberg, Emily A. Weiss, Mark D. Peterson

Publikováno v: ACS Nano. 8:2826-2837

This paper describes the surface composition-dependent binding of the dichloride salt of methyl viologen (MV2+) to CdS quantum dots (QDs) enriched, to various degrees, with either Cd or S at the surface. The degree of enrichment is controlled synthet

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::40037722a9f58596b10ea8e5ac5f4303
https://doi.org/10.1021/nn406651a

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Measurement of Wavelength-Dependent Polarization Character in the Absorption Anisotropies of Ensembles of CdSe Nanorods

Autor: Daniel B. Tice, Robert P. H. Chang, David J. Weinberg, Emily A. Weiss, Nathan Mathew

Publikováno v: The Journal of Physical Chemistry C. 117:13289-13296

Transient absorption (TA) and photolumines- cence excitation (PLE) anisotropy measurements were used to investigate the polarization of band-edge and above-band-edge excitonic states in ensembles of CdSe nanocrystals with aspect ratios of 1:1, 3:1, a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1f5f20a7d8d2db60f1f9062737dba3d9
https://doi.org/10.1021/jp402936u

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Control of the Redox Activity of Quantum Dots through Introduction of Fluoroalkanethiolates into Their Ligand Shells

Autor: Emily A. Weiss, Chen He, David J. Weinberg

Publikováno v: Journal of the American Chemical Society. 138(7)

Increasing the fraction of 1H,1H,2H,2H-perfluorodecanethiol (PFDT) in the mixed-PFDT/oleate ligand shell of a PbS quantum dot (QD) dramatically reduces the permeability of the ligand shell to alkyl-substituted benzoquinones (s-BQs), as measured by a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c9d6a17f0ebe4c362148085d8724ca9d
https://pubmed.ncbi.nlm.nih.gov/26820492

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