NDLI: Supramolecular organization of highly conducting organic thin films by the Langmuir-Blodgett technique

Content Provider	Royal Society of Chemistry (RSC)
Author	Bjørnholm, Thomas Reitzel, Niels Hassenkam, Tue
Copyright Year	1999
Abstract	The optimization of organic materials in semiconductor devices or as electrical conductors in devices is closely related to the optimization of electroactive molecular structures which can self-assemble into highly ordered solid films when cast from solution. This supramolecular optimization problem is dissected in the present feature article by focusing on self-assembly of thin films at the interface between water and air (Langmuir films). Recent advances towards fabrication of highly conducting Langmuir-Blodgett (LB) films is reviewed. Owing to new accurate structural methods, including synchrotron X-ray diffraction and scanning probe microscopy (in particular atomic force microscopy, AFM), the steps in the assembly process of Langmuir-Blodgett films can now be studied in unprecedented detail. This is exemplified for the electroactive molecular surfactant 2-octadecylsulfanyl-p-benzoquinone, and for amphiphilic derivatives of regioregular polythiophene. In the first case control over the packing of the electroactive part of the molecule is lost because the alkyl chains dominate the packing. For amphiphilic regioregular polythiophene the ability to π stack is the important feature that controls the assembly process leading to highly conducting polycrystalline films (σ≈100 S cm –1 ). Comparisons of prototype systems such as disks, boards and rods dressed with alkyl chains show that in cases where π stacking is allowed to dominate over alkyl chain packing the structures formed at the air-water interface resemble bulk structures of similar molecules. Based on these analogies the link between the LB-assembly process and other solution based methods for film fabrication (such as spin coating) is discussed.
Starting Page	1975
Ending Page	1990
Page Count	16
File Format	PDF
ISSN	09599428
Volume Number	9
Issue Number	9
Journal	Journal of Materials Chemistry
DOI	10.1039/a903019k
Language	English
Publisher	Royal Society of Chemistry
Access Restriction	Open
Subject Keyword	Langmuir Mathematical optimization Semiconductor Self-assembly Irving Langmuir Langmuir\u2013Blodgett film Synchrotron X-ray crystallography Scanning probe microscopy Atomic-force microscopy Surfactant Amphiphile Polythiophene Alkyl Crystallite Stacking (chemistry) SoltyRei Spin coating
Content Type	Text
Resource Type	Article
Subject	Chemistry Materials Chemistry

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Side chain assisted nanotubular self-assembly of cyclic peptides at the air–water interface

Organization of spin- and redox-labile metal centers into Langmuir and Langmuir–Blodgett films

Thin film formulations of substituted phthalocyanines

Controlling the structure of transparent Langmuir–Blodgett films for nonlinear optical applications

Ordered organic multilayers

Langmuir–Blodgett films of poly(N-vinyl-N′-alkylimidazolium bromide)s

Polythiophene–gold nanoparticle hybrid systems: Langmuir–Blodgett assembly of nanostructured films

Langmuir–Blodgett film formation of succinic acid half-esters containing double long alkoxy chains

Hierarchical transfer of chiral information from the molecular to the mesoscopic scale by Langmuir–Blodgett deposition of tetrasteroid-porphyrins

Supramolecular organization of highly conducting organic thin films by the Langmuir-Blodgett technique

Similar Documents

Side chain assisted nanotubular self-assembly of cyclic peptides at the air–water interface

Organization of spin- and redox-labile metal centers into Langmuir and Langmuir–Blodgett films

Thin film formulations of substituted phthalocyanines

Controlling the structure of transparent Langmuir–Blodgett films for nonlinear optical applications

Ordered organic multilayers

Langmuir–Blodgett films of poly(N-vinyl-N′-alkylimidazolium bromide)s

Polythiophene–gold nanoparticle hybrid systems: Langmuir–Blodgett assembly of nanostructured films

Langmuir–Blodgett film formation of succinic acid half-esters containing double long alkoxy chains

Hierarchical transfer of chiral information from the molecular to the mesoscopic scale by Langmuir–Blodgett deposition of tetrasteroid-porphyrins

Supramolecular organization of highly conducting organic thin films by the Langmuir-Blodgett technique