Search Results - "Nam, Yeonsig"

Catalytic nature of iron-nitrogen-graphene heterogeneous catalysts for oxygen evolution reaction and oxygen reduction reaction by Li, Nannan, Nam, Yeonsig, Yong Lee, Jin

“…[Display omitted] •Iron-nitrogen-graphene heterogeneous electrocatalysis to OER/ORR was performed.•Heterostructures were studied from small atomic cluster to…”
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Size and Shape Effects on Charge Recombination Dynamics of TiO2 Nanoclusters by Nam, Yeonsig, Li, Linqiu, Lee, Jin Yong, Prezhdo, Oleg V

“…Investigation of charge carrier recombination dynamics is central to understanding and further enhancing the photocatalytic activity of water splitting and…”
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Atomic Layer Etching Mechanism of MoS2 for Nanodevices by Kim, Ki Seok, Kim, Ki Hyun, Nam, Yeonsig, Jeon, Jaeho, Yim, Soonmin, Singh, Eric, Lee, Jin Yong, Lee, Sung Joo, Jung, Yeon Sik, Yeom, Geun Young, Kim, Dong Woo

“…Among the layered transition metal dichalcogenides (TMDs) that can form stable two-dimensional crystal structures, molybdenum disulfide (MoS2) has been…”
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Atomic layer etching of graphene through controlled ion beam for graphene-based electronics by Kim, Ki Seok, Ji, You Jin, Nam, Yeonsig, Kim, Ki Hyun, Singh, Eric, Lee, Jin Yong, Yeom, Geun Young

“…The electronic and optical properties of graphene are greatly dependent on the the number of layers. For the precise control of the graphene layers, atomic…”
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Tautomeric Effect of Histidine on β-Sheet Formation of Amyloid Beta 1–40: 2D-IR Simulations by Nam, Yeonsig, Kalathingal, Mahroof, Saito, Shinji, Lee, Jin Yong

“…Histidine state (protonated or δ or ε tautomer) has been considered the origin of abnormal misfolding and aggregation of β-amyloid (Aβ). Our previous studies…”
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Doping Effect on Edge-Terminated Ferromagnetic Graphene Nanoribbons by Nam, Yeonsig, Cho, Daeheum, Lee, Jin Yong

“…The doping effect on intramolecular magnetic exchange coupling of an edge-terminated zigzag graphene nanoribbon (ZGNR) with organic radicals was studied with…”
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Strong Influence of Oxygen Vacancy Location on Charge Carrier Losses in Reduced TiO2 Nanoparticles by Nam, Yeonsig, Li, Linqiu, Lee, Jin Yong, Prezhdo, Oleg V

“…Oxygen vacancies in TiO2 nanoparticles are important for charge carrier dynamics, with recent studies reporting contradictory results on TiO2 nanoparticle…”
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Impact of A2V Mutation and Histidine Tautomerism on Aβ42 Monomer Structures from Atomistic Simulations by Li, Hao, Nam, Yeonsig, Salimi, Abbas, Lee, Jin Yong

“…The self-assembly of amyloid-β (Aβ) peptides into senile plaques in the brain is a hallmark of Alzheimer’s disease (AD) pathology. Mutation and histidine…”
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Manipulating ultrafast even-order nonlinear chiral responses of L-tryptophan by polarization pulse shaping by Rouxel, Jérémy R, Nam, Yeonsig, Chernyak, Vladimir Y, Mukamel, Shaul

“…Molecular chirality has long been monitored in the frequency domain in the ultraviolet, visible, and infrared regimes. Recently developed time-domain…”
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Conical Intersection Passages of Molecules Probed by X‑ray Diffraction and Stimulated Raman Spectroscopy by Nam, Yeonsig, Keefer, Daniel, Nenov, Artur, Conti, Irene, Aleotti, Flavia, Segatta, Francesco, Lee, Jin Yong, Garavelli, Marco, Mukamel, Shaul

“…Conical intersections (CoIns) play an important role in ultrafast relaxation channels. Their monitoring remains a formidable experimental challenge. We…”
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Nonadiabatic Molecular Dynamics Study of the Relaxation Pathways of Photoexcited Cyclooctatetraene by Song, Huajing, Nam, Yeonsig, Keefer, Daniel, Garavelli, Marco, Mukamel, Shaul, Tretiak, Sergei

“…In the current study, we present nonadiabatic (NAMD) and adiabatic molecular dynamics simulations of the transition-state dynamics of photoexcited…”
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Time-resolved enantiomer-exchange probed by using the orbital angular momentum of X-ray light by Jiang, Xiang, Nam, Yeonsig, Rouxel, Jérémy R, Yong, Haiwang, Mukamel, Shaul

“…Molecular chirality, a geometric property of utmost importance in biochemistry, is now being investigated in the time-domain. Ultrafast chiral techniques can…”
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X‑ray and Optical Circular Dichroism as Local and Global Ultrafast Chiral Probes of [12]Helicene Racemization by Freixas, Victor M., Rouxel, Jérémy R., Nam, Yeonsig, Tretiak, Sergei, Govind, Niranjan, Mukamel, Shaul

“…Chirality is a fundamental molecular property that plays a crucial role in biophysics and drug design. Optical circular dichroism (OCD) is a well-established…”
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Vibrationally Hot Reactants in a Plasmon-Assisted Chemical Reaction by Shin, Hyun-Hang, Jeong, Jaeyoung, Nam, Yeonsig, Lee, Kang Sup, Yeon, Gyu Jin, Lee, Hankyul, Lee, Seung Yeon, Park, Sangwon, Park, Hyungjun, Lee, Jin Yong, Kim, Zee Hwan

“…Recent studies on plasmon-assisted chemical reactions postulate that the hot electrons of plasmon-excited nanostructures may induce a non-thermal vibrational…”
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Nonadiabatic Molecular Dynamics Study of the Relaxation Pathways of Photoexcited Cyclooctatetraene by Song, Huajing, Nam, Yeonsig, Keefer, Daniel, Garavelli, Marco, Mukamel, Shaul, Tretiak, Sergei

“…In the current study, we present nonadiabatic (NAMD) and adiabatic molecular dynamics simulations of the transition-state dynamics of photoexcited…”
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Time-Evolving Chirality Loss in Molecular Photodissociation Monitored by X‑ray Circular Dichroism Spectroscopy by Nam, Yeonsig, Cho, Daeheum, Gu, Bing, Rouxel, Jérémy R., Keefer, Daniel, Govind, Niranjan, Mukamel, Shaul

“…The ultrafast photoinduced chirality loss of 2-iodobutane is studied theoretically by time- and frequency-resolved X-ray circular dichroism (TRXCD)…”
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Quantum Interferometric Pathway Selectivity in Difference-Frequency-Generation Spectroscopy by Yadalam, Hari Kumar, Kizmann, Matthias, Rouxel, Jérémy R., Nam, Yeonsig, Chernyak, Vladimir Y., Mukamel, Shaul

“…Even-order spectroscopies such as sum-frequency generation (SFG) and difference-frequency generation (DFG) can serve as direct probes of molecular chirality…”
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Attosecond Monitoring of Nonadiabatic Molecular Dynamics by Transient X‑ray Transmission Spectroscopy by Cavaletto, Stefano M., Nam, Yeonsig, Rouxel, Jérémy R., Keefer, Daniel, Yong, Haiwang, Mukamel, Shaul

“…Tracing the evolution of molecular coherences can provide a direct, unambiguous probe of nonadiabatic molecular processes, such as the passage through conical…”
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Size and Shape Effects on Charge Recombination Dynamics of TiO 2 Nanoclusters by Nam, Yeonsig, Li, Linqiu, Lee, Jin Yong, Prezhdo, Oleg V.

“…Not provided…”
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Time-Resolved Optical Pump-Resonant X‑ray Probe Spectroscopy of 4‑Thiouracil: A Simulation Study by Nam, Yeonsig, Montorsi, Francesco, Keefer, Daniel, Cavaletto, Stefano M., Lee, Jin Yong, Nenov, Artur, Garavelli, Marco, Mukamel, Shaul

“…We theoretically monitor the photoinduced ππ* → nπ* internal conversion process in 4-thiouracil (4TU), triggered by an optical pump. The element-sensitive…”
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