Alpuim Group
The 2D Materials and Devices research group (2DMD) focuses on CVD growth, transfer, and device fabrication, using 2D materials, clean-room technology, and Raman imaging for structural characterization. Particular attention is given to biosensing devices, where immuno-assays and DNA sensors based on graphene liquid-gate FETs were developed. The device’s specificity for particular biomarkers is achieved by functionalizing the graphene channel. Attomolar DNA detection based on electrochemical arrays of graphene microsensors is achieved. In the framework of the project NeuralGRAB funded by “La Caixa” Foundation, we are working with the University of Minho Medical School and the Madrid Astrobiology Center to achieve brain activity recording of a panel of neurotransmitters (Dopamine, GABA, Glutamate) with physiological spatiotemporal resolution using multiplexed graphene transistor platforms.
The 2DMD is active in flexible electronics, developing 2D materials-based inks, pastes, and slurries so that inkjet, screen-printing, or spray coating are available to deposit materials from the liquid phase to fabricate flexible devices at low cost. The research applications under development are electromagnetic shielding coatings, membranes for efficient liquid filtration, and energy harvesters based on transition-metal dichalcogenides (TMDs).
The 2DMD group research activity includes fabricating single-photon emitters from controlled defects in h-BN and graphene and TMD plasmonic devices that operate in the visible or sub-mm wavelength range. These activities collaborate with the INL Ultrafast Bio- and Nanophotonics and the NAPSD groups.
Research Lines:
- Development of graphene devices for bio-applications
- Advanced processing of 2D materials for technological applications
- Flexible, lightweight, and foldable electronics, with graphene-based materials, for energy and environmental applications
- Cost-effective radio-frequency devices based on graphene
- Photodetectors for integration with microfluidic platforms for clinical use and quality control of food and water
- Single-photon emitters for quantum optical technologies
Projects
Publications
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The potential of graphene coatings as neural interfaces
NANOSCALE HORIZONS, 2024Geometry-Optimized Flexible Ferroelectret Fabricated by Laser Patterning of an Adhesive Spacer
IEEE SENSORS JOURNAL, 2024Resistive switching and Schottky barrier modulation at CoPt/ ferroelectric‑like MgZnO interface for non‑volatile memories
Journal of Materials Science: Materials in Electronics, 2024The Comprehensive Roadmap Toward Malaria Elimination Using Graphene and its Promising 2D Analogs
ADVANCED NANOBIOMED RESEARCH, 2024 -
Graphene Nanogap Interdigitated Asymmetric Electrodes for Photodetection
CHEMOSENSORS, 2023Stable Graphene Membranes for Selective Ion Transport and Emerging Contaminants Removal in Water
ADVANCED FUNCTIONAL MATERIALS, 2023Attomolar detection of hepatitis C virus core protein powered by molecular antenna-like effect in a graphene field-effect aptasensor
BIOSENSORS & BIOELECTRONICS, 2023Bipolar Resistive Switching in 2D MoSe2 Grown by Atmospheric Pressure Chemical Vapor Deposition
ACS APPLIED MATERIALS & INTERFACES, 2023Cu(In,Ga)Se-2 based ultrathin solar cells the pathway from lab rigid to large scale flexible technology
NPJ FLEXIBLE ELECTRONICS, 2023E-MRS Fall Meeting 2022 Symposium L "Doping at the Nanoscale: New Challenges and Advanced Applications"
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING, 2023Extraction of Graphene's RF Impedance through Thru-Reflect-Line Calibration
MICROMACHINES, 2023Graphene Biosensors Operated in DC Transistor and AC Electrochemical Modes for DNA sensing
2023 IEEE SENSORS, 2023Integrated Approach from Sample-to-Answer for Grapevine Varietal Identification on a Portable Graphene Sensor Chip
ACS SENSORS, 2023Light-Controlled Pyroelectric Effect: Direct Conversion of Light-Induced Heat to Physical Actuation
R. M. R. Pinto, M. Faraji and K. B. Vinayakumar, "Light-Controlled Pyroelectric Effect: Direct Conversion of Light-Induced Heat to Physical Actuation," Transducers, Kyoto, Japan, 2023, pp. 1260-1263, 2023Material jetting of carbon nano onions for printed electronics
NANOTECHNOLOGY, 2023Porous Iron-Nitrogen-Carbon Electrocatalysts for Anion Exchange Membrane Fuel Cells (AEMFC)
CHEMELECTROCHEM, 2023Second harmonic injection locking of coupled spin torque vortex oscillators with an individual phase access
Communications Physics, 2023Self-Powered Flexible Piezoelectret Array for Wearable Applications
2023 IEEE 36TH INTERNATIONAL CONFERENCE ON MICRO ELECTRO MECHANICAL SYSTEMS, MEMS, 2023Solvent-free transfer of monolayer graphene with recrystallized cyclododecane
APPLIED PHYSICS LETTERS, 2023Textile-Based Stretchable Strain Sensor for Human Activity and Health Monitoring
R. M. R. Pinto, M. Faraji and K. B. Vinayakumar, "Textile-Based Stretchable Strain Sensor for Human Activity and Health Monitoring,", Transducers, Kyoto, Japan, 2023, pp. 1612-1615., 2023Solution-Processed Functionalized Graphene Film Prepared by Vacuum Filtration for Flexible NO2 Sensors
SENSORS, 2023 -
Programmable graphene-based microfluidic sensor for DNA detection
SENSORS AND ACTUATORS B-CHEMICAL, 2022Towards RF graphene devices: A review
FLATCHEM, 2022Room-temperature emitters in wafer-scale few-layer hBN by atmospheric pressure CVD
FLATCHEM, 2022Inkjet-Printing of Carbon Nano Onions for Sensor Applications in Flexible Printed Electronics
2022 IEEE INTERNATIONAL CONFERENCE ON FLEXIBLE AND PRINTABLE SENSORS AND SYSTEMS (IEEE FLEPS 2022), 2022Design and manufacture of an all-polymeric integrated multimode interferometer for visible photonics
OPTICS EXPRESS, 2022Green Solvents for the Liquid Phase Exfoliation Production of Graphene: The Promising Case of Cyrene
FRONTIERS IN CHEMISTRY, 2022Nanocrystalline graphene for ultrasensitive surface-enhanced Raman spectroscopy
APPLIED SURFACE SCIENCE, 2022Optimizing PMMA solutions to suppress contamination in the transfer of CVD graphene for batch production
BEILSTEIN JOURNAL OF NANOTECHNOLOGY, 2022Spectral-temporal luminescence properties of Colloidal CdSe/ZnS Quantum Dots in relevant polymer matrices for integration in low turn-on voltage AC-driven LEDs
OPTICS EXPRESS, 2022Strain-modulated optical response in 2D MoSe2 made by Na-assisted CVD on glass
APPLIED PHYSICS LETTERS, 2022Strain-modulated optical response in 2D MoSe2 made by Na-assisted CVD on glass
APPLIED PHYSICS LETTERS, 2022Surface Passivation of III-V GaAs Nanopillars by Low-Frequency Plasma Deposition of Silicon Nitride for Active Nanophotonic Devices
ACS APPLIED ELECTRONIC MATERIALS, 2022Ultrasensitive dopamine detection with graphene aptasensor multitransistor arrays
JOURNAL OF NANOBIOTECHNOLOGY, 2022Wet-Chemical Noncovalent Functionalization of CVD Graphene: Molecular Doping and Its Effect on Electrolyte-Gated Graphene Field-Effect Transistor Characteristics
JOURNAL OF PHYSICAL CHEMISTRY C, 2022High Seebeck Coefficient from Screen-Printed Colloidal PbSe Nanocrystals Thin Film
MATERIALS, 2022 -
Mechanically Tunable Lattice-Plasmon Resonances by Templated Self-Assembled Superlattices for Multi-Wavelength Surface-Enhanced Raman Spectroscopy
SMALL METHODS, 2021The Challenges of Developing Biosensors for Clinical Assessment: A Review
CHEMOSENSORS, 2021Discovering Light: Fun Experiments with Optics
PDF ISBN: 9781510639362 | Print ISBN: 9781510639355, 2021Interactions between Primary Neurons and Graphene Films with Different Structure and Electrical Conductivity
ADVANCED FUNCTIONAL MATERIALS, 2021Interplay of Magnetic Properties and Doping in Epitaxial Films of h-REFeO3 Multiferroic Oxides
SMALL, 2021Efficient ReSe2 Photodetectors with CVD Single-Crystal Graphene Contacts
NANOMATERIALS, 2021Efficient ReSe2 Photodetectors with CVD Single-Crystal Graphene Contacts
NANOMATERIALS, 2021Role of sublimation kinetics of ammonia borane in chemical vapor deposition of uniform, large-area hexagonal boron nitride
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY A, 2021Highly-efficient GaAs/AlGaAs Nanopillars and NanoLEDs via SiNx Surface Passivation
2021 CONFERENCE ON LASERS AND ELECTRO-OPTICS EUROPE & EUROPEAN QUANTUM ELECTRONICS CONFERENCE (CLEO/EUROPE-EQEC), 2021High-Performance and Industrially Viable Nanostructured SiOx Layers for Interface Passivation in Thin Film Solar Cells
SOLAR RRL, 2021Hydrogenated Graphene Improves Neuronal Network Maturation and Excitatory Transmission
ADVANCED BIOLOGY, 2021Influence of the Electrolyte Salt Concentration on DNA Detection with Graphene Transistors
BIOSENSORS-BASEL, 2021Interactions Between 2D Materials and Living Matter: A Review on Graphene and Hexagonal Boron Nitride Coatings
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY, 2021On the Importance of Joint Mitigation Strategies for Front, Bulk, and Rear Recombination in Ultrathin Cu(In,Ga)Se-2 Solar Cells
ACS APPLIED MATERIALS & INTERFACES, 2021Room temperature two terminal tunnel magnetoresistance in a lateral graphene transistor
NANOSCALE, 2021Tuning the Electronic Properties of Graphane via Hydroxylation: An Ab Initio Study
JOURNAL OF PHYSICAL CHEMISTRY C, 2021Efficient infrared sunlight absorbers based on gold-covered, inverted silicon pyramid arrays
MATERIALS ADVANCES, 2021Environmentally Friendly Graphene Inks for Touch Screen Sensors
ADVANCED FUNCTIONAL MATERIALS, 2021Non-volatile artificial synapse based on a vortex nano-oscillator.
Scientific Reports, 2021Seedless Cu Electroplating on Co-W Thin Films in Low pH Electrolyte: Early Stages of Formation
NANOMATERIALS, 2021 -
Efficient light extraction in subwavelength GaAs/AlGaAs nanopillars for nanoscale light-emitting devices
OPTICS EXPRESS, 2020ILS-based Reservoir Computing for Handwritten Digits Recognition
8th Iranian Joint Congress on Fuzzy and Intelligent Systems (CFIS), 2020Multi-beam two-photon polymerization for fast large area 3D periodic structure fabrication for bioapplications
SCIENTIFIC REPORTS, 2020Recent Advancements on the CVD of Graphene on Copper from Ethanol Vapor
C-JOURNAL OF CARBON RESEARCH, 2020Effects of magnetic monopoles charge on the cracking reversal processes in artificial square ices
SCIENTIFIC REPORTS, 2020Non-invasive molecular assessment of human embryo development and implantation potential
BIOSENSORS & BIOELECTRONICS, 2020Over 6% Efficient Cu(ln,Ga)Se-2 Solar Cell Screen-Printed from Oxides on Fluorine-Doped Tin Oxide
ACS APPLIED ENERGY MATERIALS, 2020Raman Spectroscopy for Tumor Diagnosis in Mammary Tissue
PROCEEDINGS OF THE 8TH INTERNATIONAL CONFERENCE ON PHOTONICS, OPTICS AND LASER TECHNOLOGY (PHOTOPTICS), 2020Rational Design of Photo-Electrochemical Hybrid Devices Based on Graphene and Chlamydomonas reinhardtii Light-Harvesting Proteins
SCIENTIFIC REPORTS, 2020Clean-Room Lithographical Processes for the Fabrication of Graphene Biosensors
MATERIALS, 2020Double grain boundary configurations on graphite surfaces
CARBON, 2020Field-effect transistors made of graphene grown on recycled copper foils
MATERIALS CHEMISTRY AND PHYSICS, 20202D semiconducting materials for electronic and optoelectronic applications: potential and challenge
2D MATERIALS, 2020Highly flexible graphene nanoplatelet-polydimethylsiloxane strain sensors with proximity-sensing capability
MATERIALS RESEARCH EXPRESS, 2020 -
Negative thermoelectric power of melt mixed vapor grown carbon nanofiber polypropylene composites
CARBON, 2019Rear Optical Reflection and Passivation Using a Nanopatterned Metal/Dielectric Structure in Thin-Film Solar Cells
IEEE JOURNAL OF PHOTOVOLTAICS, 2019Graphene setting the stage: tracking DNA hybridization with nanoscale resolution
2D MATERIALS, 2019A morphological and electronic study of ultrathin rear passivated Cu(In,Ga)Se-2 solar cells
THIN SOLID FILMS, 2019Electrically Conducting and Mechanically Strong Graphene-Polylactic Acid Composites for 3D Printing
ACS APPLIED MATERIALS & INTERFACES, 2019Experimental and theoretical evidences for the ice regime in planar artificial spin ices
JOURNAL OF PHYSICS-CONDENSED MATTER, 2019Functionalization of single-layer graphene for immunoassays
APPLIED SURFACE SCIENCE, 2019Spin torque nano-oscillator driven by combined spin injection from tunneling and spin Hall current
COMMUNICATIONS PHYSICS, 2019Template-directed self-organization of colloidal PbTe nanocrystals into pillars, conformal coatings, and self-supported membranes
NANOSCALE ADVANCES, 2019Tuning magnetic monopole population and mobility in unidirectional array of nanomagnets as a function of lattice parameters
APPLIED PHYSICS LETTERS, 2019Attomolar Label-Free Detection of DNA Hybridization with Electrolyte-Gated Graphene Field-Effect Transistors
ACS SENSORS, 2019 -
Effect of argon ion energy on the performance of silicon nitride multilayer permeation barriers grown by hot-wire CVD on polymers
THIN SOLID FILMS, 2015Flexible organic-inorganic hybrid layer encapsulation for organic opto-electronic devices
PROGRESS IN ORGANIC COATINGS, 2015Impact of MgO Thickness on the Performance of Spin-Transfer Torque Nano-Oscillators
IEEE TRANSACTIONS ON MAGNETICS, 2015Degradation of all-inkjet-printed organic thin-film transistors with TIPS-pentacene under processes applied in textile manufacturing
ORGANIC ELECTRONICS, 2015Permeation barrier performance of Hot Wire-CVD grown silicon-nitride films treated by argon plasma
THIN SOLID FILMS, 2015Silicon nanowire arrays coupled with cobalt phosphide spheres as low-cost photocathodes for efficient solar hydrogen evolution
CHEMICAL COMMUNICATIONS, 2015Ultra-Compact 100 x 100 mu m(2) Footprint Hybrid Device with Spin-Valve Nanosensors
SENSORS, 2015 -
Piezoresistive sensors for force mapping of hip-prostheses
SENSORS AND ACTUATORS A-PHYSICAL, 2013 -
Integration of Magnetoresistive Biochips on a CMOS Circuit
IEEE TRANSACTIONS ON MAGNETICS, 2012Scanning tunneling spectroscopy of epitaxial graphene nanoisland on Ir(111)
NANOSCALE RESEARCH LETTERS, 2012Magnetic Response and Spin Polarization of Bulk Cr Tips for In-Field Spin-Polarized Scanning Tunneling Microscopy
JAPANESE JOURNAL OF APPLIED PHYSICS, 2012Atomic structure and spectroscopy of graphene edges on Ir(111)
PHYSICAL REVIEW B, 2012Effect of hot-filament annealing in a hydrogen atmosphere on the electrical and structural properties of Nb-doped TiO2 sputtered thin films
THIN SOLID FILMS, 2012 -
Direct Observation of Electron Confinement in Epitaxial Graphene Nanoislands
ACS NANO, 2011Switching Fields of Individual Co Nanoislands
IEEE TRANSACTIONS ON MAGNETICS, 2011