Photoinduced charge-transfer materials for nonlinear optical applications
Abstract
A method using polyelectrolyte self-assembly for preparing multi-layered organic molecular materials having individual layers which exhibit ultrafast electron and/or energy transfer in a controlled direction occurring over the entire structure. Using a high molecular weight, water-soluble, anionic form of poly-phenylene vinylene, self-assembled films can be formed which show high photoluminescence quantum efficiency (QE). The highest emission QE is achieved using poly(propylene-imine) (PPI) dendrimers as cationic binders. Self-quenching of the luminescence is observed as the solid polymer film thickness is increased and can be reversed by inserting additional spacer layers of transparent polyelectrolytes between each active conjugated layer, such that the QE grows with thickness. A red shift of the luminescence is also observed as additional PPV layers are added. This effect persists as self-quenching is eliminated. Charge transfer superlattices can be formed by additionally incorporating C.sub.60 acceptor layers.
- Inventors:
- Issue Date:
- Research Org.:
- Los Alamos National Security, LLC, Los Alamos, NM (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1175959
- Patent Number(s):
- 7125578
- Application Number:
- 09/298,297
- Assignee:
- Los Alamos National Security, LLC (Los Alamos, NM)
- Patent Classifications (CPCs):
-
B - PERFORMING OPERATIONS B82 - NANOTECHNOLOGY B82Y - SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES
G - PHYSICS G02 - OPTICS G02F - DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING
- DOE Contract Number:
- W-7405-ENG-36
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 36 MATERIALS SCIENCE
Citation Formats
McBranch, Duncan W. Photoinduced charge-transfer materials for nonlinear optical applications. United States: N. p., 2006.
Web.
McBranch, Duncan W. Photoinduced charge-transfer materials for nonlinear optical applications. United States.
McBranch, Duncan W. Tue .
"Photoinduced charge-transfer materials for nonlinear optical applications". United States. https://www.osti.gov/servlets/purl/1175959.
@article{osti_1175959,
title = {Photoinduced charge-transfer materials for nonlinear optical applications},
author = {McBranch, Duncan W.},
abstractNote = {A method using polyelectrolyte self-assembly for preparing multi-layered organic molecular materials having individual layers which exhibit ultrafast electron and/or energy transfer in a controlled direction occurring over the entire structure. Using a high molecular weight, water-soluble, anionic form of poly-phenylene vinylene, self-assembled films can be formed which show high photoluminescence quantum efficiency (QE). The highest emission QE is achieved using poly(propylene-imine) (PPI) dendrimers as cationic binders. Self-quenching of the luminescence is observed as the solid polymer film thickness is increased and can be reversed by inserting additional spacer layers of transparent polyelectrolytes between each active conjugated layer, such that the QE grows with thickness. A red shift of the luminescence is also observed as additional PPV layers are added. This effect persists as self-quenching is eliminated. Charge transfer superlattices can be formed by additionally incorporating C.sub.60 acceptor layers.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Oct 24 00:00:00 EDT 2006},
month = {Tue Oct 24 00:00:00 EDT 2006}
}
Save to My Library
You must Sign In or Create an Account in order to save documents to your library.
Works referenced in this record:
Photoisomerization of Polyionic Layer-by-Layer Films Containing Azobenzene
journal, January 1999
- Dante, Silvia; Advincula, Rigoberto; Frank, Curtis W.
- Langmuir, Vol. 15, Issue 1
Design and synthesis of chromophores and polymers for electro-optic and photorefractive applications
journal, August 1997
- Marder, Seth R.; Kippelen, Bernard; Jen, Alex K. -Y.
- Nature, Vol. 388, Issue 6645
Formation of polypeptide-dye multilayers by electrostatic self-assembly technique
journal, July 1995
- Cooper, Thomas M.; Campbell, Angela L.; Crane, Robert L.
- Langmuir, Vol. 11, Issue 7
Polyelectrolyte Behavior of Astramol Poly(propyleneimine) Dendrimers
journal, July 1998
- Kabanov, V. A.; Zezin, A. B.; Rogacheva, V. B.
- Macromolecules, Vol. 31, Issue 15
Non-linear optical effects in layer-by-layer alternate films of polycations and an azobenzene-containing polyanion
journal, May 1997
- Lvov, Yuri; Yamada, Sunao; Kunitake, Toyoki
- Thin Solid Films, Vol. 300, Issue 1-2
Spatially indirect excitons as primary photoexcitations in conjugated polymers
journal, February 1994
- Yan, M.; Rothberg, L. J.; Papadimitrakopoulos, F.
- Physical Review Letters, Vol. 72, Issue 7
Supramolecular photoinduced charge transfer materials for nonlinear optics
journal, April 1998
- McBranch, Duncan W.
- Current Opinion in Solid State and Materials Science, Vol. 3, Issue 2
Ultrafast holography using charge-transfer polymers
journal, September 1997
- Maniloff, Eric S.; Vacar, Dan; McBranch, Duncan W.
- Optics Communications, Vol. 141, Issue 5-6
Buildup of ultrathin multilayer films by a self-assembly process: III. Consecutively alternating adsorption of anionic and cationic polyelectrolytes on charged surfaces
journal, April 1992
- Decher, G.; Hong, J. D.; Schmitt, J.
- Thin Solid Films, Vol. 210-211
Theoretical and experimental adsorption studies of polyelectrolytes on an oppositely charged surface
journal, January 1999
- Mashl, Robert J.; Gro/nbech-Jensen, Niels; Fitzsimmons, M. R.
- The Journal of Chemical Physics, Vol. 110, Issue 4