We report the first direct observation of charge transport dynamics using time-resolved microwave conductivity and transient absorption spectroscopy techniques on the photolysis of an anthraquinone-bound DNA complex.
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http://dx.doi.org/10.1021/ja058057e | DOI Listing |
Proc Natl Acad Sci U S A
January 2025
William H. Miller III Department of Physics and Astronomy, The Johns Hopkins University, Baltimore, MD 21218.
Introducing an experimental technique of time-resolved inelastic neutron scattering (TRINS), we explore the time-dependent effects of resonant pulsed microwaves on the molecular magnet CrFPiv. The octagonal rings of magnetic Cr atoms with antiferromagnetic interactions form a singlet ground state with a weakly split triplet of excitations at 0.8 meV.
View Article and Find Full Text PDFJ Colloid Interface Sci
December 2024
Department of Chemistry, Fu Jen Catholic University, New Taipei City 24205, Taiwan.
A novel metal-organic framework (MOF), (Cu-S)MOF, with a copper-sulfur planar structure was applied to photocatalytic H production application. (Cu-S)MOF@ZnS nanocomposite was synthesized using a microwave-assisted hydrothermal approach. The formation of (Cu-S)MOF and wurtzite ZnS in the composite nanoparticles was analyzed by X-ray diffraction (XRD), field emission-scanning electron microscopy (FESEM), and high-resolution transmission electron microscope (HRTEM).
View Article and Find Full Text PDFJ Chem Phys
November 2024
Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan.
The quadrupole moment of a non-fullerene acceptor (NFA) generated by the constituent electron donor (D) and acceptor (A) units is a significant factor that affects the charge separation (CS) and charge recombination (CR) processes in organic photovoltaics (OPVs). However, its impact on p-type polymer domains remains unclear. In this study, we synthesized p-type molecules, namely acceptor-donor-acceptor (ADA) and donor-acceptor-donor (DAD), which are components of the benchmark PM6 polymer (D: benzodithiophene and A: dioxobenzodithiophene).
View Article and Find Full Text PDFNanomaterials (Basel)
October 2024
Department of Physics, Institute of Physics, Budapest University of Technology and Economics, Műegyetem Rkp. 3., H-1111 Budapest, Hungary.
The measurement and description of the charge-carrier lifetime (τc) is crucial for the wide-ranging applications of lead-halide perovskites. We present time-resolved microwave-detected photoconductivity decay (TRMCD) measurements and a detailed analysis of the possible recombination mechanisms including trap-assisted, radiative, and Auger recombination. We prove that performing injection-dependent measurement is crucial in identifying the recombination mechanism.
View Article and Find Full Text PDFAdv Mater
November 2024
School of Physics and Technology, Hubei Luojia Laboratory, Key Lab of Artificial Micro- and Nano-Structures of Ministry of Education, School of Microelectronics, Wuhan University, Wuhan, 430072, China.
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