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Bis(-alanine -butylester)-3,4:9,10-perylene diimide molecule for volatile organic vapor detection
Ist Teil von
Molecular systems design & engineering, 2020-07, Vol.5 (6), p.157-17
Erscheinungsjahr
2020
Quelle
Alma/SFX Local Collection
Beschreibungen/Notizen
Langmuir-Blodgett (LB) thin films were prepared using an
N
,
N
′-bis(
l
-alanine
tert
-butylester)-3,4:9,10-perylene diimide derivative to determine the optimum thin film forming conditions and their sensing properties towards volatile organic vapors. Our results showed that highly uniform LB films could be transferred onto gold substrates and were highly sensitive to dichloromethane and chloroform vapors with a high response and short recovery time. Structure-function relationships suggest that hydrogen bonding between the perylene diimide and the vapor molecules plays a significant role in determining the performance of perylene diimide sensing devices. Diffusion processes were investigated using Fick's second law. The diffusion of dichloromethane and chloroform vapors into the LB film structure yielded larger responses than other vapors. The interactions were reversible, and purging caused the vapor molecules to escape from the LB films.
Langmuir-Blodgett (LB) thin films were prepared using an
N
,
N
′-bis(
l
-alanine
tert
-butylester)-3,4:9,10-perylene diimide derivative to determine the optimum thin film forming conditions and their sensing properties towards volatile organic vapors.
Sprache
Englisch
Identifikatoren
eISSN: 2058-9689
DOI: 10.1039/d0me00010h
Titel-ID: cdi_rsc_primary_d0me00010h
Format
–
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