A5056677817- Organic Electronics and Photovoltaics
- Conducting polymers and applications
- Analytical Chemistry and Sensors
- Thin-Film Transistor Technologies
- Ferroelectric and Piezoelectric Materials
- Catalytic Processes in Materials Science
- Advanced Sensor and Energy Harvesting Materials
- Electrocatalysts for Energy Conversion
- Fuel Cells and Related Materials
- Multiferroics and related materials
- Microwave Dielectric Ceramics Synthesis
- Diamond and Carbon-based Materials Research
- 2D Materials and Applications
- Water Treatment and Disinfection
- Adipose Tissue and Metabolism
- Inorganic Chemistry and Materials
- Photorefractive and Nonlinear Optics
- Electrochemical Analysis and Applications
- Thermal Expansion and Ionic Conductivity
- GABA and Rice Research
- Pharmacology and Obesity Treatment
- Dielectric properties of ceramics
- Nanofabrication and Lithography Techniques
- Medicinal Plants and Neuroprotection
- Nanowire Synthesis and Applications
Tecnológico Nacional de México
2023-2024
Instituto Tecnológico Superior de Xalapa
2022-2023
University of California, Davis
2017-2021
Universidad Nacional Autónoma de México
2012-2021
University of California System
2017-2018
Universidad Autónoma de Baja California
2015
Centre Interuniversitaire de Recherche et d’Ingénierie des Matériaux
2006
Université Toulouse III - Paul Sabatier
2006
Jacobs <italic>et al.</italic> present the first observation of both fractional and integer charge transfer phases in a single OSC:dopant system.
Molecular dopants are increasingly studied to enhance the conductivity of semiconducting polymers. Most available p-type have low solubility in common solvents and moderate electron affinities (EA), which makes solution processing difficult limits range polymers that can be doped. Here, we describe synthesis characterization new molecular dopant TMCN3-CP, has an EA −5.5 eV. We show high ionization energy alternating copolymers such as PDPP-4T, PDPP-3T, PDPP-T-TT-T doped achieve...
Residual 1,8-Diiodooctane (DIO), a common solvent additive used in organic photovoltaic (OPV) films, is found to cause photodegradation even at ppm concentrations.
The use of nanomaterials allows the design ultrasensitive biosensors with advantages in detection organic molecules. Catechol and catechin are molecules that occur naturally fruits, their presence products like dyes wines affects quality standards. In this study, catechol were measured at nanoscale by means cyclic voltammetry. oxidation Coriolopsis gallica laccase immobilized on nitrogen-doped multiwalled carbon nanotubes (Lac/CN x -MWCNT) graphene oxide (Lac/GO) was used to measure...
Organic semiconductors (OSCs) offer a new avenue to the next-generation electronics, but lack of scalable and inexpensive nanoscale patterning/deposition technique still limits their use in electronic applications. Recently, lithographic etching has been introduced that uses molecular dopants reduce semiconducting polymer solubility solvents direct-write laser remove locally, enabling rapid OSC with diffraction limited resolution. Previous publications postulated reaction enables patterning...
Obesity is the main challenge for public health systems. Functional foods have emerged as an alternative to ineffectiveness of pharmacological therapies. However, it necessary investigate find sources raw material its preparation. The aim this work was evaluate functional effects residual avocado seed in diet-induced obese mice. Animals were fed a high-fat diet supplemented with (1.25%) 6 weeks. Body weight, food intake, satiety, physical activity, and energy expenditure-involved gene...
There is a critical need to develop method pattern semiconducting polymers for device applications on the sub-micrometer scale.
Mutually soluble semiconducting polymer films are sequentially deposited from solution to form multiple layers with minimal mixing.
Abstract Recent development of dopant induced solubility control (DISC) patterning polymer semiconductors has enabled direct‐write optical poly‐3‐hexylthiophene (P3HT) with diffraction limited resolution. Here, the DISC technique to most simple circuit element, a wire, is applied. Optical P3HT and doped molecular 2,3,5,6‐tetrafluoro‐7,7,8,8‐tetracyanoquinodimethane (F4TCNQ) wires dimensions 20–70 nm thickness, 200–900 width, 40 μm length demonstrated. In addition, wire patterns like “L”...
New organic-soluble dopants have record high electron affinity values and show outstanding doping performance with ionization energy co-polymers.
Doping-induced solubility control (DISC) patterning is a recently developed technique that uses the change in polymer upon doping, along with an optical dedoping process, to achieve high-resolution patterning. DISC can produce features smaller than predicted by diffraction limit; however, no mechanism has been proposed explain such high resolution. Here, we use spatially modulate light intensity and determine dissolution rate, revealing superlinear dependence on intensity. This rate law...
This work presents a study of ceramics with the (K0.44Na0.52Li0.04)0.97La0.01Nb0.9Ta0.1O3 composition through their Raman spectra. In previous studies [1], this particular has shown good permittivity and piezoelectric parameter values that justify deeper investigation. Two sets samples these ceramic compounds were prepared using different methods. The first set was classical solid-state reaction oxides carbonates, as described in Ref. 2. second NaNbO3 precursor. spectra obtained by direct...
Due to their potential application in microelectronics, high dielectric constant materials, (epsiv' <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">r</sub> > 10 000), are very attractive. Among them, there has been recently a considerable interest for various perovskite oxides like calcium copper titanate CaCu xmlns:xlink="http://www.w3.org/1999/xlink">3</sub> Ti xmlns:xlink="http://www.w3.org/1999/xlink">4</sub> O...
Using Raman spectroscopy, the study of a polymorphic phase transition in KNNLiTaLa0.01 compound is presented. An analysis behavior with temperature, wavenumber and half width at full maximum individual bands, corresponding to vibration modes (Nb/Ta)O6 octahedra compound’s structure, performed. This determined that occurs 90 105°C temperature interval. Hard Mode Spectroscopy method, value critical exponent order parameter was be β ≈ ½, indicative second transition.
Sequential solution doping is a processing technique that allows conjugated polymer film to be doped from solvent will not dissolve the polymer. We present here method predict level in cm-3 concentration used dope film. show using four polymers and three different newly synthesized dopants can me modeled simple Langmuir isotherm. In addition, analysis of UV/vis spectra shows filling density states. Polymers with sharper band edge demonstrate much high conductivity for same hole density....
The largest need in organic electronic devices is a universal method to produce micro- nano-scale features for from semiconducting polymers cheaply, and at scale. We recently developed solution optically pattern conjugated with resolution that exceeds the linear Abbe diffraction limit. examine relationship between optical write intensity, speed, wavelength on resulting fidelity. Finite element modeling reveals nearly all patterning occurs as result of local heating superlinear highly...