Chemical sensors based on π-conjugated organic molecules and gold nanoparticles

2009 ◽  
Vol 52 (6) ◽  
pp. 715-730 ◽  
Author(s):  
MingJian Yuan ◽  
YongJun Li ◽  
HuiBiao Liu ◽  
YuLiang Li
Keyword(s):  
Gold Nanoparticles ◽  
Chemical Sensors ◽  
Organic Molecules ◽  
Conjugated Organic Molecules

scholarly journals An investigation of the interrelationships between linear and nonlinear polarizabilities and bond-length alternation in conjugated organic molecules

1993 ◽  
Vol 90 (23) ◽  
pp. 11297-11301 ◽  
Author(s):  
C B Gorman ◽  
S R Marder
Keyword(s):  
Bond Length ◽  
Organic Molecules ◽  
Computational Method ◽  
Bond Length Alternation ◽  
Conjugated Molecules ◽  
Conjugated Organic Molecules ◽  
Alpha Beta ◽  
Relationship Of ◽  
The Relationship ◽  
Observable Parameter

A computational method was devised to explore the relationship of charge separation, geometry, molecular dipole moment (mu), polarizability (alpha), and hyperpolariz-abilities (beta, gamma) in conjugated organic molecules. We show that bond-length alternation (the average difference in length between single and double bonds in the molecule) is a key structurally observable parameter that can be correlated with hyperpolarizabilities and is thus relevant to the optimization of molecules and materials. By using this method, the relationship of bond-length alternation, mu, alpha, beta, and gamma for linear conjugated molecules is illustrated, and those molecules with maximized alpha, beta, and gamma are described.

Influence of conjugation length on ultrafast electronic tunneling in organic semiconductor thin films

2018 ◽  
Vol 20 (38) ◽  
pp. 25085-25095 ◽  
Author(s):  
Vincent V. Duong ◽  
Alexander L. Ayzner
Keyword(s):  
Molecular Electronics ◽  
Organic Molecules ◽  
Electron Delocalization ◽  
Conjugation Length ◽  
Conjugated Organic Molecules ◽  
Rate Limiting Step ◽  
Limiting Step ◽  
Semiconductor Thin Films ◽  
Electronic Tunneling ◽  
Rate Limiting

Electron delocalization in conjugated organic molecules is a rate-limiting step in maximizing the photo conversion efficiency of next generation photovoltaics and molecular electronics.

Characterization of step-edge barrier crossing of para-sexiphenyl on the ZnO (101̄0) surface

2016 ◽  
Vol 18 (36) ◽  
pp. 25329-25341 ◽  
Author(s):  
Karol Palczynski ◽  
Philipp Herrmann ◽  
Georg Heimel ◽  
Joachim Dzubiella
Keyword(s):  
Thin Film ◽  
Mass Transport ◽  
Organic Molecules ◽  
Optoelectronic Devices ◽  
Thin Film Deposition ◽  
Essential Elements ◽  
Transport Processes ◽  
Film Deposition ◽  
Conjugated Organic Molecules

Mass transport processes of conjugated organic molecules (COMs) on inorganic surfaces are essential elements in thin film deposition for hybrid optoelectronic devices.

Molekularstruktur und Fluoreszenz aus ππ*-angeregten Zuständen organischer Moleküle/ Molecular Structure and Fluorescence from ππ* Excited States of Organic Molecules

1975 ◽  
Vol 30 (12) ◽  
pp. 1691-1695
Author(s):  
Filip Fratev
Keyword(s):  
Molecular Structure ◽  
Excited States ◽  
Organic Molecules ◽  
Preceding Paper ◽  
Molecular Structures ◽  
Dual Fluorescence ◽  
Large Classes ◽  
Conjugated Organic Molecules

Abstract Molecular The classification of the types of excited molecular structures suggested in a preceding paper1, can be used for interpretation and prediction of fluorescence ability of large classes of conjugated organic molecules. Possible electronic conditions for S2- and dual fluorescence are discussed. An extension of Kasha's rule is suggested.

scholarly journals Exploiting trifluoromethyl substituents for tuning orbital character of singlet and triplet states to increase the rate of thermally activated delayed fluorescence

2020 ◽  
Vol 4 (12) ◽  
pp. 3602-3615 ◽  
Author(s):  
Jonathan S. Ward ◽  
Andrew Danos ◽  
Patrycja Stachelek ◽  
Mark A. Fox ◽  
Andrei S. Batsanov ◽  
...  
Keyword(s):  
Excited States ◽  
Organic Molecules ◽  
Delayed Fluorescence ◽  
Triplet States ◽  
Thermally Activated Delayed Fluorescence ◽  
Thermally Activated ◽  
Conjugated Organic Molecules ◽  
Singlet And Triplet States ◽  
Triplet Excited States ◽  
Orbital Character

This work shows that trifluoromethyl (CF3) substituents can be used to increase the rate of thermally activated delayed fluorescence (TADF) in conjugated organic molecules by tuning the excitonic character of the singlet and triplet excited states.

Quantification and classification of substituent effects in organic chemistry: a theoretical molecular electrostatic potential study

2016 ◽  
Vol 18 (30) ◽  
pp. 20615-20626 ◽  
Author(s):  
Geetha S. Remya ◽  
Cherumuttathu H. Suresh
Keyword(s):  
Organic Chemistry ◽  
Electrostatic Potential ◽  
Molecular Electrostatic Potential ◽  
Organic Molecules ◽  
Substituent Effects ◽  
Conjugated Organic Molecules ◽  
Hammett Constants ◽  
Strong Linear Correlation ◽  
Potential Parameters

The molecular electrostatic potential parameters show a strong linear correlation with Hammett constants and serve as tools for designing π-conjugated organic molecules with highly tuned electronic properties.

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