Photoinduced electron transfer in thin films of porphyrin–fullerene dyad and perylenetetracarboxidiimide

2010 ◽  
Vol 12 (39) ◽  
pp. 12525 ◽  
Author(s):  
Paola Vivo ◽  
Alexander S. Alekseev ◽  
Kimmo Kaunisto ◽  
Oili Pekkola ◽  
Antti Tolkki ◽  
...  
Keyword(s):  
Thin Films ◽  
Electron Transfer ◽  
Photoinduced Electron Transfer

Directional photoinduced electron transfer in paraquat silicate thin films containing entrapped ruthenium(ii)-tris(bathophenanthroline-disulfonate)

2011 ◽  
Vol 47 (40) ◽  
pp. 11348 ◽  
Author(s):  
Scott A. Trammell ◽  
Stanislav Tsoi ◽  
Brett Martin ◽  
Brian J. Melde ◽  
Martin M. Moore ◽  
...  
Keyword(s):  
Thin Films ◽  
Electron Transfer ◽  
Photoinduced Electron Transfer ◽  
Bathophenanthroline Disulfonate

scholarly journals Controlling photoinduced electron transfer from PbS@CdS core@shell quantum dots to metal oxide nanostructured thin films

Nanoscale ◽  
2014 ◽  
Vol 6 (12) ◽  
pp. 7004-7011 ◽  
Author(s):  
H. Zhao ◽  
Z. Fan ◽  
H. Liang ◽  
G. S. Selopal ◽  
B. A. Gonfa ◽  
...  
Keyword(s):  
Thin Films ◽  
Quantum Dots ◽  
Electron Transfer ◽  
Metal Oxide ◽  
Photoinduced Electron Transfer ◽  
Transfer Rate ◽  
Shell Thickness ◽  
Wide Bandgap ◽  
Core Shell ◽  
Photoluminescence Lifetime

We investigate the photoelectron transfer rate from PbS@CdS core@shell QDs to wide bandgap mesoporous films using photoluminescence lifetime spectroscopy, which is strongly size, shell thickness and oxide dependent.

scholarly journals Photoinduced Electron Transfer and Changes in Surface Free Energy in Polythiophene-Polyviologen Bilayered Thin Films

2021 ◽  
Author(s):  
Mary K. Danielson ◽  
Jie Chen ◽  
Anna K. Vaclavek ◽  
Nathan D. Colley ◽  
Abdul-Haq Alli ◽  
...  
Keyword(s):  
Thin Films ◽  
Electron Transfer ◽  
Free Energy ◽  
Surface Free Energy ◽  
Photoinduced Electron Transfer

Computationally Assisted Design of High Signal-to-Noise Photoinduced Electron Transfer-Based Voltage-Sensitive Dyes

2020 ◽  
Author(s):  
Rishikesh Kulkarni ◽  
Anneliese Gest ◽  
Chun Kei Lam ◽  
Benjamin Raliski ◽  
Feroz James ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Dft Calculations ◽  
Photoinduced Electron Transfer ◽  
Density Functional ◽  
Embryonic Stem ◽  
High Sensitivity ◽  
Md Simulations ◽  
High Signal ◽  
Signal To Noise ◽  
Green Fluorescent

<p>High signal-to-noise optical voltage indicators will enable simultaneous interrogation of membrane potential in large ensembles of neurons. However, design principles for voltage sensors with high sensitivity and brightness remain elusive, limiting the applicability of voltage imaging. In this paper, we use molecular dynamics (MD) simulations and density functional theory (DFT) calculations to guide the design of a bright and sensitive green-fluorescent voltage-sensitive fluorophore, or VoltageFluor (VF dye), that uses photoinduced electron transfer (PeT) as a voltage-sensing mechanism. MD simulations predict an 11% increase in sensitivity due to membrane orientation, while DFT calculations predict an increase in fluorescence quantum yield, but a decrease in sensitivity due to a decrease in rate of PeT. We confirm these predictions by synthesizing a new VF dye and demonstrating that it displays the expected improvements by doubling the brightness and retaining similar sensitivity to prior VF dyes. Combining theoretical predictions and experimental validation has resulted in the synthesis of the highest signal-to-noise green VF dye to date. We use this new voltage indicator to monitor the electrophysiological maturation of human embryonic stem cell-derived medium spiny neurons. </p>

Photoinduced electron transfer in mechanically interlocked suit[3]ane systems

2021 ◽  
Author(s):  
Anton J Stasyuk ◽  
Olga A. Stasyuk ◽  
Miquel Solà ◽  
Alexander Voityuk
Keyword(s):  
Electron Transfer ◽  
Photoinduced Electron Transfer ◽  
New Class ◽  
Transfer Processes ◽  
Two Component ◽  
Electron Transfer Processes

Suitanes, a new class of two-component mechanically interlocked systems, have recently been developed. In this work, we report a detailed study of photoinduced electron transfer processes in the suit[3]anes consisting...

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