Post on 02-Jan-2016
transcript
50 nm
Incorporation of Optical Functionalities
• Organic Dyes
• Conjugated Polymers
• Organometallics
• DNA
• Semiconducting Quantum Dots
• Nanowires
• Inorganic Charge Transfer
• Rare Earth Complexes
• Enzymes, e.g., organophosphorus hydrolase
N NO2O
In transparent mesoporous solids
In transparent composites
Important need for novel membrane chemistries relevant to water harvesting: recovery from atmosphere, soldier, engine exhaust, plants; exploit capillary forces like trees; aligned mesoporous membranes
Dr. Michael Gardos, DARPA/DSO
Summary
Capabilities to design, synthesize and process new high performance, ordered, functional porous inorganic and inorganic/organic hybrid materials for a wide range of applications.
Contact Information:
SBA Materials, Inc.
5290 Overpass Road, Suite 131
Santa Barbara, California 93111
phone: 805-683-6102
fax: 805-683-6742
bradchmelka@sbamaterials.com
earldanielson@sbamaterials.com
Versatility of compositions, structures, length scales, and functionalities
Applications
• High pore-volume catalysts & supports for large molecules• Separation adsorbents, membranes• Oriented thin films and fibers for optical applications• Coatings and packagings• Low dielectric constant materials• Chemical and biosensors• Functional composites: conducting, optoelectronic, magnetic • Environmental remediation
Low Dielectric Constant Mesoporous Silica Thin Films
1.17
1.17 2
1.17 4
1.17 6
1.17 8
1.18
1.18 2
300 400 500
600 700 800 900Wavelength
k=1.4 @1014 Hz k=2.5-2.8 @1 MHz
Ellipsometry
n
• Multilayer Patterning• Optical Waveguides• Addressable optoelectronic circuits?
P. Yang, et al., Adv. Mat. 10, 1385 (1998)