Results 91 to 100 of about 28,603 (262)

The phthalocyanines applications in photodynamic therapy investigated by time-resolved and steady-state photothermal methods

open access: yesInternational Journal of Photoenergy, 2002
The time-resolved photothermal methods are used in order to establish the yield of intersystem (singlet-triplet) crossing of dyes that are candidates for the application in photodynamic therapy.
Danuta Frackowiak   +4 more
doaj   +1 more source

Magnetic fields facilitate DNA-mediated charge transport

open access: yes, 2015
Exaggerate radical-induced DNA damage under magnetic fields is of great concerns to medical biosafety and to bio-molecular device based upon DNA electronic conductivity.
Lee, Kee Jin   +3 more
core   +2 more sources

Why Computational Photochemistry Is Challenging and Will Probably Remain So: A Quantum Chemist's Perspective

open access: yesAdvanced Science, EarlyView.
Computational Photochemistry has made great strides in recent decades, but the investigation of larger molecules remains a challenge due to the inherent dilemma between the increasing computational accuracy required as the molecule size increases and the inevitable explosion in computational effort.
Andreas Dreuw
wiley   +1 more source

Active Shell Engineering for Efficient Cascade Triplet Energy Transfer in Lanthanide Heterostructures

open access: yesAngewandte Chemie, EarlyView.
Active shell engineering resolves the trade‐off between surface passivation and molecular sensitization in lanthanide nanoparticles. NaYbF4@Ca0.8F2:Nd0.2@ACA heterostructures transform inert shells into energy conduits, enabling cascade triplet transfer with near‐unity efficiency.
Zhao Jiang   +7 more
wiley   +2 more sources

Photorelaxation Pathways of 4-(N,N-Dimethylamino)-4′-nitrostilbene Upon S1 Excitation Revealed by Conical Intersection and Intersystem Crossing Networks

open access: yesMolecules, 2020
Multi-state n-electron valence state second order perturbation theory (MS-NEVPT2) was utilized to reveal the photorelaxation pathways of 4-(N,N-dimethylamino)-4′-nitrostilbene (DANS) upon S1 excitation.
Ziyue He   +4 more
doaj   +1 more source

An MS-CASPT2 Study of the Photodecomposition of 4- Methoxyphenyl Azide. Role of Internal Conversion and Intersystem Crossing [PDF]

open access: yes, 2019
Aryl azides photochemistry is strongly dependent on the substituent relative position, as has been studied by time resolved resonant Raman (TR3) spectroscopy for 4-methoxyphenyl azide and its isomer 3-methoxyphenyl azide.
Aranda, Daniel   +5 more
core  

Spin-enhanced organic bulk heterojunction photovoltaic solar cells

open access: yes, 2012
Recently, much effort has been devoted to improve the efficiency of organic photovoltaic solar cells based on blends of donors and acceptors molecules in bulk heterojunction architecture.
Basel, Tek P.   +6 more
core   +1 more source

Publisher Correction: Unexpected intersystem crossing [PDF]

open access: yesNature Chemistry, 2019
In the version of this News & Views originally published, Fig. 1b incorrectly displayed the chemical formula “CH3NHCH3”. This has been corrected to “CH3NHCH2”.
openaire   +1 more source

Multi‐Level Confinement Single‐Molecule Charge Transfer Activated PRET for Near‐Infrared Targeted Cell Imaging

open access: yesAdvanced Science, EarlyView.
The cascade supramolecular assembly of charge‐transfer arrays not only triggered a topological transformation from nanofiber to nanorod and vesicles, but also promoted single‐molecule phosphorescent resonance energy transfer, expanding phosphorescence emission at 500 nm to near‐infrared delayed fluorescence emission at 650 nm with a lifetime of 11.20 ...
Zhuo Lei   +5 more
wiley   +1 more source

Study of TADF Emitters in OLEDs [PDF]

open access: yes, 2015
Delayed fluorescence through thermally activated delayed fluorescence (TADF) has great potential for the creation of inexpensive and highly efficient white lighting applications, with superior colour rendering.
GRAVES, DAVID,RICHARD
core  

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