Machine-Learning Algorithms for Nano-Material Characterization

The finite difference-time domain (FDTD) models for clusters of known substrate nano-particle distributions were developed. Additional models utilizing open source finite element analysis (FEA) software (ELMER) and commercial FEA software (COMSOL) were also developed. These models will be

Donor-Acceptor Binary Organic Compounds – Charge Transfer (CT) Complexes

Charge transfer materials are important components of organic electronics for applications in OLED, solar batteries and transistors. Structure-properties relations for this series of materials, including shapes of their crystals, were studied experimentally and computationally in connectio

Using Iron with Oxide Nanosheets to Enhance Electrochemical Lithium-Ion Charge Storage

Research at Texas State University (MSI) and MSREC partner NC State demonstrated that iron oxide (g-Fe2O3) could be synthesized as a nanosheet architecture which resulted in significantly higher Li-ion capacities than nanoparticles; this work can provide enhanced cathodes for lower cost Li

Self-assembling polymer/clay nanocomposites applied to fruit for shelf life extension

In previous work Texas State University team members  discovered a self-assembling nanocomposite formed between polyvinylpyrrolidone and montmorillonite clay that exhibits high gas barrier properties. This self assembling phenomena has been extended to other polymers including polyvinyl al

New Electron Extraction materials for Inverted Perovskite Solar Cells

Perovskite solar cells (PSCs), have shown a remarkable increase in photoconversion efficiency (PCE), from 3.8%  in 2009, to 22.1% in 2016. The good electron transporting and solution processable properties of fullerene derivatives make them the most popular electron transporting materials

3D Printing of Multifunctional Composites

Piezoelectric materials have long been investigated due to their unique characteristic of converting mechanical stress into electrical charges or vice versa.  However they are fragile, difficult to fabricate, and requires post processing. One way to alleviate the drawback is to use 3D prin

How Methylammonium Cations and Chlorine Dopants Heal Defects in Lead Iodide Perovskites

Despite rapid progress in the efficiency of organohalide perovskite based solar cells, physical mechanisms underlying their efficient charge separation and slow charge recombination still elude us.

UTRGV-UMN Partnership for Fostering Innovation by Bridging Excellence in Research and Student Success

[A] Developed a scalable method to produce graphene-fiber hybrid structures with seamless connections between graphene and fibers. These are produced in situ from aqueous polymer solutions. The surface area and pore diameter of the hybrid structures were measured to be 520 m2g–1 and 10 nm,

PREM 2017 Intellectual Merit Highlights

T1: Magnetic and Electric Properties with ApplicationsDesigning methods and devices for efficient mutual control of electricity and magnetismDeveloping low-power consumptionWe designed and fabricated Graphite-fiber reinforced copper composite wires to meet the requirements of wire strength

One-Step Synthesis of Fluorescent Graphene Quantum Dots Through Pyrolysis of Amino Acids

Outcome: We have developed a novel method for the synthesis of graphene quantum dots (GQDs) by using two amino acids, which are non-toxic natural materials containing nitrogen groups for easy surface modification. The synthesis process was easy, efficient and no toxic chemicals were involv

3D Nanoarchitecture for Bio-molecular Fingerprinting

We have developed three-dimensional (3D) nanoachitecture based surface enhnaced Raman spectroscopy (SERS) technology and demonstrated that it can be used for the diagnosis of bacteria, virus, Alzheimer’s disease biomarkers, cancer, explosives and toxic chemicals.Our 3D technology has the c

Functionalized Fullerenes for Selective Electron Extraction in Inverted Perovskite Solar Cells

Perovskite solar cells (PSCs), have shown a remarkable increase in photoconversion efficiency (PCE), from 3.8%  in 2009, to 22.1% in 2016. The good electron transporting and solution processable properties of fullerene derivatives make them the most popular electron transporting materials