Direct imaging of Frenkel exciton transport by ultrafast microscopy

T Zhu, Y Wan, L Huang - Accounts of chemical research, 2017 - ACS Publications
Conspectus Long-range transport of Frenkel excitons is crucial for achieving efficient
molecular-based solar energy harvesting. Understanding of exciton transport mechanisms is …

Coordination-induced symmetry breaking on metal-porphyrinic framework thin films for enhanced nonlinear optical limiting

YB Tian, QH Li, Z Wang, ZG Gu, J Zhang - Nano Letters, 2023 - ACS Publications
Structural asymmetry affecting the nonlinear optics (NLO) of metal–organic frameworks
(MOFs) is very important in fundamentals and applications but is still a challenge. Herein we …

Porphyrinic metal–organic framework PCN-224 nanoparticles for near-infrared-induced attenuation of aggregation and neurotoxicity of Alzheimer's amyloid-β peptide

J Wang, Y Fan, Y Tan, X Zhao, Y Zhang… - … applied materials & …, 2018 - ACS Publications
The aberrant aggregation of amyloid-β peptide (Aβ) in the brain has been considered as the
major pathological hallmark of Alzheimer's diseases (AD). Inhibition of Aβ aggregation is …

Direct imaging of exciton transport in tubular porphyrin aggregates by ultrafast microscopy

Y Wan, A Stradomska, J Knoester… - Journal of the American …, 2017 - ACS Publications
Long-range exciton transport is a key challenge in achieving efficient solar energy
harvesting in both organic solar cells and photosynthetic systems. Self-assembled molecular …

Exciton Energy and Charge Transfer in Porphyrin Aggregate/Semiconductor (TiO2) Composites

S Verma, HN Ghosh - The Journal of Physical Chemistry Letters, 2012 - ACS Publications
A porphyrin aggregate is reported that exhibits novel exciton state properties for light-
harvesting applications. This porphyrin aggregate enables control of energy dissipation of …

Metalated porphyrins as versatile visible light and NIR photoinitiators of polymerization

G Noirbent, Y Xu, AH Bonardi, D Gigmes… - European Polymer …, 2020 - Elsevier
A series of metalated porphyrins has been prepared and used as visible light photoinitiators
of polymerization activable under low light intensity. Among the six metalated porphyrins …

Exciton-vibrational coupling in molecular aggregates: Electronic versus vibronic dimer

S Polyutov, O Kühn, T Pullerits - Chemical Physics, 2012 - Elsevier
The influence of exciton-vibrational coupling on the energy level structure, oscillator
strength, and relaxation dynamics is investigated for two different excitonic dimer models. As …

Circularly polarized luminescence as a probe for long-range interactions in molecular aggregates

R Tempelaar, A Stradomska, J Knoester… - The Journal of …, 2011 - ACS Publications
The extreme sensitivity of circularly polarized luminescence (CPL) to long-range excitonic
interactions inside a helical aggregate is investigated. It is found to persist even in the …

Synthesis and photocatalytic properties of titanium‐porphyrinic Aerogels

Y Keum, B Kim, A Byun, J Park - Angewandte Chemie, 2020 - Wiley Online Library
We present novel titanium‐porphyrinic gels (TPGs) and titanium‐porphyrinic aerogels
(TPAs), in which porphyrinic ligand tetrakis (4‐carboxyphenyl) porphyrin is coordinated to Ti …

Electron Cryo‐Microscopy of TPPS4⋅2HCl Tubes Reveals a Helical Organisation Explaining the Origin of their Chirality

JM Short, JA Berriman, C Kübel, Z El‐Hachemi… - …, 2013 - Wiley Online Library
The conversion of solar energy into heat, electricity or fuels to meet future changes in the
world's resources is currently an area of intense study and research.[1] Bionics offers …