Imaging Carrier Dynamics and Transport in Hybrid Perovskites with Transient Absorption Microscopy
Sign Up to like & getrecommendations! Published in 2020 at "Advanced Energy Materials"
DOI: 10.1002/aenm.201903781
Abstract: In this review, the recent progress in using transient absorption microscopy to image charge transport and dynamics in semiconducting hybrid organic–inorganic perovskites is discussed. The basic principles, instrumentation, and resolution of transient absorption microscopy are… read more here.
Keywords: microscopy; carrier; transient absorption; resolution ... See more keywords
Ultrafast Depolarization of Transient Absorption as a Probe of Plasmonicity of Optical Transitions in Ag Nanoclusters
Sign Up to like & getrecommendations! Published in 2017 at "Plasmonics"
DOI: 10.1007/s11468-017-0678-y
Abstract: Time-resolved polarization-dependent transient absorption has been used to study the plasmonicity of the optical transitions of Ag nanoparticles and nanoclusters. The lack of a measureable polarization anisotropy in the nanoparticles is indicative of the ultrafast… read more here.
Keywords: optical transitions; transitions nanoclusters; plasmonicity optical; transient absorption ... See more keywords
Analysis of collision-controlled time dependence of diffusion coefficient of polaron pairs from transient absorption spectra of conducting polymers
Sign Up to like & getrecommendations! Published in 2018 at "Chemical Papers"
DOI: 10.1007/s11696-018-0439-1
Abstract: We derived relations for time-dependent diffusion coefficient of photoexcited species determined from transient absorption spectra for various types of collision processes controlling decay of photoexcited species of conducting polymers. The method was applied for time-resolved… read more here.
Keywords: conducting polymers; absorption spectra; diffusion coefficient; time ... See more keywords
Simulation of X-ray transient absorption for following vibrations in coherently ionized F2 molecules
Sign Up to like & getrecommendations! Published in 2017 at "Chemical Physics"
DOI: 10.1016/j.chemphys.2016.10.006
Abstract: Abstract Femtosecond and attosecond X-ray transient absorption experiments are becoming increasingly sophisticated tools for probing nuclear dynamics. In this work, we explore and develop theoretical tools needed for interpretation of such spectra,in order to characterize… read more here.
Keywords: absorption; transient absorption; ray transient; simulation ... See more keywords
Attosecond transient absorption spectroscopy of molecular nitrogen: Vibrational coherences in the b′ 1Σ+u state
Sign Up to like & getrecommendations! Published in 2017 at "Chemical Physics Letters"
DOI: 10.1016/j.cplett.2017.02.013
Abstract: Abstract Nuclear and electronic dynamics in a wavepacket comprising bound Rydberg and valence electronic states of nitrogen from 12 to 15 eV are investigated using attosecond transient absorption. Vibrational quantum beats with a fundamental period of… read more here.
Keywords: state; attosecond transient; transient absorption; spectroscopy ... See more keywords
Ultrafast UV–Vis Transient Absorption and Circular Dichroism Spectroscopy of a Polyfluorene Copolymer Showing Large Chiral Induction
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Physical Chemistry C"
DOI: 10.1021/acs.jpcc.0c00976
Abstract: Ultrafast broadband UV–vis transient circular dichroism (TrCD) and transient absorption (TA) spectroscopy are employed to study the dynamics of chiral polymer thin films. Helical cholesteric arrang... read more here.
Keywords: vis transient; transient absorption; spectroscopy; circular dichroism ... See more keywords
Physical Origins of the Transient Absorption Spectra and Dynamics in Thin-Film Semiconductors: The Case of BiVO4
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Physical Chemistry C"
DOI: 10.1021/acs.jpcc.8b06645
Abstract: Transient absorption (TA) spectroscopy is uniquely suited for understanding kinetic processes initiated by light over vast ranges of time. In combination with white light probes, the recorded differential absorption spectra can contain spectroscopic signatures characteristic… read more here.
Keywords: absorption; absorption spectra; thin film; transient absorption ... See more keywords
Charge Dynamics of a CuO Thin Film on Picosecond to Microsecond Timescales Revealed by Transient Absorption Spectroscopy
Sign Up to like & getrecommendations! Published in 2023 at "ACS Applied Materials & Interfaces"
DOI: 10.1021/acsami.2c22595
Abstract: Understanding the mechanism of charge dynamics in photocatalysts is the key to design and optimize more efficient materials for renewable energy applications. In this study, the charge dynamics of a CuO thin film are unraveled… read more here.
Keywords: spectroscopy; charge dynamics; transient absorption; absorption ... See more keywords
Pulse Radiolysis and Transient Absorption of Aqueous Cr(VI) Solutions up to 325 °C
Sign Up to like & getrecommendations! Published in 2022 at "ACS Omega"
DOI: 10.1021/acsomega.2c04807
Abstract: Pulse radiolysis with a custom multichannel detection system has been used to measure the kinetics of the radiation chemistry reactions of aqueous solutions of chromium(VI) to 325 °C for the first time. Kinetic traces were… read more here.
Keywords: aqueous solutions; absorption aqueous; transient absorption; radiolysis transient ... See more keywords
Photoinduced Heterocyclic Ring Opening of Furfural: Distinct Open-Chain Product Identification by Ultrafast X-ray Transient Absorption Spectroscopy.
Sign Up to like & getrecommendations! Published in 2018 at "Journal of the American Chemical Society"
DOI: 10.1021/jacs.8b07155
Abstract: The ultraviolet-induced photochemistry of five-membered heterocyclic rings often involves ring opening as a prominent excited-state relaxation pathway. The identification of this particular photoinduced mechanism, however, presents a challenge for many experimental methods. We show that… read more here.
Keywords: ring opening; transient absorption; ray transient; spectroscopy ... See more keywords
Polarization-controlled optimal scatter suppression in transient absorption spectroscopy
Sign Up to like & getrecommendations! Published in 2017 at "Scientific Reports"
DOI: 10.1038/srep43484
Abstract: Ultrafast transient absorption spectroscopy is a powerful technique to study fast photo-induced processes, such as electron, proton and energy transfer, isomerization and molecular dynamics, in a diverse range of samples, including solid state materials and… read more here.
Keywords: polarizer; polarization; transient absorption; spectroscopy ... See more keywords