Browse Technologies

Displaying 1 - 10 of 17

3D Junction Bipolar Membranes: More Efficient and Reliable Electrodialysis

Vanderbilt researchers have developed a unique membrane material for more efficient and reliable eletrodialysis. By utilizing a 3D junction structure, the nanofiber bipolar membrane does not degrade or delaminate during high current passage unlike commercial 2D membranes that are currently available.

Gratings on Porous Silicon Structures for Sensing Applications

In this technology diffraction-based sensors made from porous materials are used for the detection of small molecules. The porous nature of the diffraction gratings that gives rise to an extremely large active sensing area enables a very high level of sensitivity. Specificity is achieved by functionalizing the porous gratings with selective binding species.

Biohybrid, Photoelectrochemical Energy Conversion Device Based on Photosystem I Deposited Silicon Electrodes

Summary: Aresearch team at Vanderbilt University have developed a biohybrid, photoelectrochemical energy conversion device with multilayer films of Photosystem I (PSI) deposited on silicon electrodes, which yielded an average photocurrent density of 875 µA/cm2; one of the highest reported photocurrent densities for a film of PSI deposited onto an electrode of any material.

Bright White Light Nanocrystals for LEDs

A research team lead by Professor Sandra Rosenthal at Vanderbilt University has developed nanocrystals (~2 nm diameter) that emit white light with very high quantum efficiency. This technology would be a viable cost effective candidate for commercial solid-state lighting applications, such as Light Emitting Diodes (LEDs). These nanocrystals were originally discovered by the same group in 2005; a recent breakthrough in post-treatment results in improving fluorescent quantum yield up to ~ 45%.

Composite Material for Tunable Memristance Behavior

This technology uses combinations of materials with different electronic properties of micro-or nanometerscale grain size to create a memristive device (twoterminal, variable resistance circuit element). Amidst growing interest in memristors, this technology is one of the first to use composite materials, which make the memristive qualities of the material tunable.

Ferroelectric Nanofluids for Piezoelectric and Electro-Optic Uses

Researchers at Vanderbilt University have developed a new method of producing microscale and nanoscale ferroelectric fluids. These particles are useful in a variety of piezoelectric, pyroelectric, and electrooptic devices such as thin-film capacitors, electronic transducers, actuators, high-k dielectrics, pyroelectric sensors, and optical memories.

Stable Nanopores in Graphene

This technology consists of a method to fabricate a truly 2 dimensional porous surface using graphene with stabilized pore diameters less than a few nanometers. The nanopores are inert and stable for extended periods of time (several months) and under extreme conditions. The resulting membrane can be used in water purification, chemical separation, sensing, DNA sequencing, and other applications.

Ultrasonic Sensor for Non-intrusive Local Temperature, Transient Temperature and Heat Flux Measurements

An apparatus for measuring the temperature and heat flux of materials through the use of an ultrasonic sensor has been developed at Vanderbilt University. The sensor uses acoustic measurement techniques to determine the heat flux and temperature of material surfaces otherwise inaccessible in particular during system operation in order to enhance monitoring capabilities and reduce unsafe or impaired function due to extreme temperatures.

Free Standing Nanocrystal Thin Films

Vanderbilt researchers have developed a process that creates free standing nanocrystalline thin films using a simple, robust and cost- efficient process. This paves the way for manufacturing conformal films of nanocrystals at a fraction of the cost as compared to techniques currently used. The process could be applied in the manufacture of a number of end products such as solar cells supercapacitors, magnetic storage, semiconductor devices and catalysis.

Easy-to-Fabricate, Cost-Effective, and Stable Surface Enhanced Raman Scattering (SERS) Substrates

Vanderbilt researchers have developed a Surface Enhanced Raman Scattering (SERS) substrate with demonstrated signal amplification over one order of magnitude greater than commercially available SERS substrates. Very significantly, the newly developed substrates utilize a simple inexpensive imprinting process on nanoporous gold and are thus amenable for high-volume production.