Molecular photodiodes consisting of polyimide Langmuir–Blodgett films possessing electron acceptor, photo-sensitizer, and electron donor units

1989 ◽  
pp. 1772-1774 ◽  
Author(s):  
Yasunari Nishikata ◽  
Atsushi Morikawa ◽  
Masa-Aki Kakimoto ◽  
Yoshio Imai ◽  
Yoshiki Hirata ◽  
...  
Keyword(s):  
Electron Donor ◽  
Electron Acceptor ◽  
Langmuir Blodgett ◽  
Langmuir Blodgett Films ◽  
Photo Sensitizer

Langmuir-Blodgett Films of Potential Unidimensional Organic Rectifiers

1989 ◽  
Vol 173 ◽  
Author(s):  
Robert M. Metzger ◽  
Charles A. Panetta
Keyword(s):  
Cyclic Voltammetry ◽  
Electron Microscope ◽  
Scanning Electron Microscope ◽  
Electron Donor ◽  
Electron Acceptor ◽  
Electrical Current ◽  
Langmuir Blodgett ◽  
Type D ◽  
Langmuir Blodgett Films ◽  
Scanning Electron

ABSTRACTThe progress of the Organic Rectifier Project (ORP) is reviewed. Several molecules of the type D-σ-A (D=organic one-electron donor, σ = covalent saturated bridge, A = organic one-electron acceptor) have been synthesized, to test the Aviram-Ratner Ansatz that they could be one-molecule thick rectifiers of electrical current. Many of these molecules (σ= urethane) self-assemble as Langmuir-Blodgett films; the cyclic voltammetry peaks confirm that these molecules preserve the good D and A characteristics. Calculations confirm that the zwitterionic state D+-σ-A- is much below the state D-σ-A+, as expected. Preliminary tests of electrical rectification have failed. With the installation of a new scanning electron microscope, the Aviram-Ratner Ansatz will soon be put to a final and definitive test

Langmuir-Blodgett films of One-dimensional Nanowires composed of Amphiphilic Tetrathiafulvalenes and Electron Acceptor

2008 ◽  
Vol 1144 ◽  
Author(s):  
Yoko Tatewaki ◽  
Junko Takizawa ◽  
Tatsuya Hatanaka ◽  
Mutsumi Kimura ◽  
Hirofusa Shirai
Keyword(s):  
Electron Acceptor ◽  
Room Temperature ◽  
The Other ◽  
Water Interface ◽  
One Dimensional ◽  
Langmuir Blodgett ◽  
Electrical Conductivities ◽  
Air Water Interface ◽  
Langmuir Blodgett Films ◽  
Mixed Layers

ABSTRACTWe found that novel amphiphilic tetrathiafulvalene (TTF; 1) organized into supramolecular assemblies by the addition of electron acceptor 2,3,5,6-tetrafluoro-7,7'f,8,8'f-tetracyano-p-quinodimethane (F4TCNQ) at the air-water interface. The assemblies on the air-water interface can be transferred onto the surface of mica and the morphologies of transferred films were investigated by AFM. The morphology of Langmuir-Blodgett films strongly depended on the ratio between 1 and F4TCNQ. Film of 1:1 mixture of 1 and F4TCNQ formed nanoscopic wires having an average dimension of 5.0 (height) × 70 (width) × 3000 (length) nm. On the other hand, the film of 2:1 mixture of 1 and F4TCNQ showed the mixed domains of wires and flat monolayers. Thus, the completely charge-transferred complex (1+)(F4TCNQ-) formed one-dimensional nanowires having a micrometer length. Room temperature electrical conductivities of cast film for 1:1 and 2:1 mixed layers of 1 and F4TCNQ were 2.4 × 10−4 and 8.0 × 10−5 S cm−1, respectively.

Structural and optical properties of langmuir-blodgett films of the electron acceptor 2-octadecylthio-1,4-benzoquinone

1993 ◽  
Vol 57 (1) ◽  
pp. 3807-3812 ◽  
Author(s):  
T. Bjørnholm ◽  
N.B. Larsen ◽  
F.E. Christensen ◽  
P. Sommer-Larsen ◽  
T. Skettrup ◽  
...  
Keyword(s):  
Optical Properties ◽  
Electron Acceptor ◽  
Structural And Optical Properties ◽  
Langmuir Blodgett ◽  
Langmuir Blodgett Films

Langmuir-blodgett films of liquid-crystalline heteroaromatic cations associated with diamagnetic (BF4-, CIO4-) or paramagnetic (TCNQ[math]) anions

1988 ◽  
Vol 85 ◽  
pp. 385-389 ◽  
Author(s):  
M. Vandevyver ◽  
J. Richard ◽  
A Barraud ◽  
M. Veber ◽  
C Jallabert ◽  
...  
Keyword(s):  
Liquid Crystalline ◽  
Langmuir Blodgett ◽  
Langmuir Blodgett Films

Non linear physical properties of langmuir-blodgett films : their possible applications

1988 ◽  
Vol 85 ◽  
pp. 1093-1097 ◽  
Author(s):  
G.G. Roberts ◽  
B. Holcroft ◽  
T. Richardson ◽  
R. Colbrook
Keyword(s):  
Physical Properties ◽  
Langmuir Blodgett ◽  
Non Linear ◽  
Langmuir Blodgett Films
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