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Browse Category: Materials & Chemicals > Thin Films


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Highly-Permeable Polyaniline Membranes with Graphene Oxide Additive and CO2 Separations from Flue Gas

UCLA researchers in the Departments of Chemistry and Biochemistry and Civil and Environmental Engineering have developed a method to selectively tune polymer membranes (polyaniline) by incorporating graphene oxide. Additionally, the films produced by this method are capable of separating greenhouse gas carbon dioxide (CO2) from air on an industrially relevant scale.

A Thin Film Nitinol Neurovascular Covered Stent For Small Vessel Aneurysms

UCLA researchers in the Department of Pediatrics have developed a thin and flexible stent that can be implanted in small vessels in the neurovascular system. Normal 0 false false false EN-US ZH-CN X-NONE /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin-top:0in; mso-para-margin-right:0in; mso-para-margin-bottom:10.0pt; mso-para-margin-left:0in; line-height:115%; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri",sans-serif; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:"Times New Roman"; mso-bidi-theme-font:minor-bidi;}

A Phase-Changing Polymer Film for Broadband Smart Windows Applications

UCLA researchers in the Department of Materials Science and Engineering have developed an energy efficient smart window coating with wide light bandwidth and long cycle lifetimes.

Enhanced Block Copolymer Self-Assembly

Brief description not available

Dynamic Structural Color-Based Cryptographic Surfaces

UCLA researchers from the Department of Materials Science and Engineering have developed a composite surface, stimuli-responsive thin film capable of rapidly encrypting and decoding hidden messages and images.

2D Perovskite Stabilized Phase-Pure Formamidinium Perovskite Solar Cells and Light Emitting Diodes

UCLA researchers in the Department of Materials Science and Engineering have developed a novel lead halide perovskite solar cell based on a mixture of formamidinium perovskites and 2D perovskites.

Reticulation Of Macromolecules Into Crystalline Networks

Covalent organic frameworks (COFs) are 2D or 3D extended periodic networks assembled from symmetric, shape persistent molecular 5 building blocks through strong, directional bonds. Traditional COF growth strategies heavily rely on reversible condensation reactions that guide the reticulation toward a desired thermodynamic equilibrium structure. The requirement for dynamic error correction, however, limits the choice of building blocks and thus the associated mechanical and electronic properties imbued within the periodic lattice of the COF.   UC Berkeley researchers have demonstrated the growth of crystalline 2D COFs from a polydisperse macromolecule derived from single-layer graphene, bottom-up synthesized quasi one-dimensional (1D) graphene nanoribbons (GNRs). X-ray scattering and transmission electron microscopy revealed that 2D sheets of GNR-COFs self-assembled at a liquid-l quid interface stack parallel to the layer boundary and exhibit an orthotropic crystal packing. Liquid-phase exfoliation of multilayer GNR-COF crystals gave access to large area bilayer and trilayer cGNR-COF films. The functional integration of extended 1D materials into crystalline COFs greatly expands the structural complexity and the scope of mechanical and physical materials properties.

Material For Thermal Regulation

Researchers at UCI have developed a lightweight, flexible thermal material that, due to the extent that it is stretched, allows for tunable control of heat flow.

Microporous membranes for the separation of enantiomers

Current methods used to separate racemic compounds on a large scale have limitations in cost, energy efficiency, and discontinuous processing. UCI researchers have synthesized a membrane made of chiral porous polymers that can separate enantiomers from racemic mixtures through continuous processing.

Fabrication of Relaxed Semiconductor Films without Crystal Defects

A technique for making relaxed InGaN layers without crystal defects.

Multiple-absorbers offer increased solar conversion efficiencies for artificial photosynthesis

   Researchers at UCI have, for the first time, developed a method for modeling the efficiencies of artificial photosynthetic devices containing multiple light absorbers. As these devices more closely parallel naturally occurring photosynthesis, they offer higher performance than standard single-absorber devices.

Controlling Magnetization Using Patterned Electrodes on Piezoelectrics

UCLA researchers in the Department of Materials Science and Engineering have developed a novel piezoelectric thin film that can control magnetic properties of individual magnetic islands.

Hydrogel Thin Film-Based Dynamic Structural Color System for Sensing, Camouflage, and Adaptive Optics

UCLA researchers from the Department of Material Science and Engineering have developed a novel hydrogel color system that can be used for dynamic sensing, camouflage, and adaptive optics.

Robust, Ultra-Flexible, Micro-Encoded Ferromagnetic Tape for Bioseparation and Assembly

Researchers at the UCLA Department of Bioengineering have developed methods to embed electroplated magnetic materials within elastomeric materials and use these flexible magnetic hybrid materials for biological applications.

Highly Efficient Perovskite/Cu(In, Ga)Se2 Tandem Solar Cell

UCLA researchers in the Department of Materials Science and Engineering have developed Perovskite/Cu(In, Ga)Se2 (PVSK/CIGS) tandem photovoltaic devices with ~22% efficiency.

A General Solution-Processable Approach To High-Quality Two-Dimensional Ink Materials For Printable High-Performance Large-Area And Low-Cost Electronics/Optoelectronics/Thermoelectrics

UCLA researchers in the Departments of Chemistry & Biochemistry and Materials Science & Engineering have developed a general and cost-effective solution-phase approach to create large-area and high-performance thin films or devices.

Refreshable Tactile Display Using Bistable Electroactive Polymer

Researchers in the UCLA Department of Materials Science and Engineering have developed a high resolution, refreshable, and low-cost pneumatic tactile interactive device with a compact structure, single fluidic reservoir, and high actuator density that exerts large stroke and provides high blocking force.

Controlled Homo-Epitaxial Growth Of Hybrid Halide Crystals

Organic-inorganic hybrid perovskites have demonstrated tremendous potential for next-generation electronic and optoelectronic devices due to their remarkable carrier dynamics. However, current studies of electronic and optoelectronic devices have been focused on polycrystalline materials, due to the challenges in synthesizing device compatible high quality single crystalline materials.

Photo-induced Metal Printing Technique for Creating Metal Patterns and Structures Under Room Temperature

UCLA researchers in the Department of Materials Science and Engineering have developed a low-temperature metal patterning technique.

An Implantable Electrocorticogram (ECoG)-Brain-Computer Interface System for Restoring Lower Extremity Movement and Sensation

A fully implantable brain-computer interface (BCI) with onboard processing to control a robotic gait exoskeleton as a walking aid for individuals with chronic spinal cord injury (SCI). This technology would alleviate SCI patient’s dependence on wheel chairs, reducing the risk of secondary medical complications that account for an estimated $50 billion/year in healthcare costs.

Graphene-Polymer Nanocomposite Incorporating Chemically Doped Graphene-Polymer Heterostructure for Flexible and Transparent Conductive Films

UCLA researchers in the Department of Electrical Engineering have invented a novel graphene-polymer nanocomposite material for flexible transparent conductive electrode (TCE) applications.

Electrical Conduction In A Cephalopod Structural Protein

Fabricating materials from naturally occurring proteins that are inherently biocompatible enables the resulting material to be easily integrated with many downstream applications, ranging from batteries to transistors. In addition, protein-based materials are also advantageous because they can be physically tuned and specifically functionalized. Inventors have developed protein-based material from structural proteins such as reflectins found in cephalopods, a molluscan class that includes cuttlefish, squid, and octopus. In a space dominated by artificial, man-made proton-conducting materials, this material is derived from naturally occurring proteins.

Selective Chemical Bath Deposition of IrOx on Thin Film Structure

UCLA researchers in the Department of Bioengineering have developed a selective chemical bath deposition method to create IrOx thin films.

Respiratory Monitor For Asthma And Other Pulmonary Conditions

A patch sensor that is able to continuously monitor breathing rate and volume to diagnose pulmonary function and possibly predict and possibly prevent fatal asthma attacks.

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