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Facilities

University Center Facility

University of Delaware Nanofabrication Facility: state-of-the-art clean room facility.
Keck Center for Advaced Miscroscopy and Microanalysis: TEM, Focus Ion Beam (FIB), SEM, etc.
Advance Materials Characterization Lab: Variety of instrument for material characterization.

Material Fabrication

Magnetron Sputtering System

Multiple gas environment: Ar, N2, O2, NH3
Multiple sputtering guns (cathodes): 7 in each systems with RF and DC power
plasmon oxidation gun for fabrication of Al2O3 and MgO tunnel barrier
Substrate rotation: rotation around the center and self rotation
Substrate temperature control: 77 K to 800 K

Sputtering_chamber

Sputtering System-Manual

Vacuum Annealing in Magnetic Field

Spin-spray Ferrite Deposition

Fabrication of Ferrite films at low temperature

Precursor solution flow rate: 0.06-2300 ml/min
Substrate heating: 200 C
Substrate rotation: 100-1500rpm

Electro-Spinning System

Fabrication of nanofiber, nanotube, and porous materials
Materials: polymers, metals, oxides, and compounds

Electrochemical Deposition

Computer-controlled Potentiostat/Galvanostat 100 V compliance, 2 A current output

•Potentiostatic •Potentiodynamic •Cyclic Voltammogram •Potential Square-Wave •Potential Stair-Step •Potential Scan/Hold •Polarization Resistance •Square-Wave Voltammetry •Galvanostatic •Galvanodynamic •Galvanic Square-Wave •Galvanic Cycle •E&I Noise

CVD for Graphene Fabrication

Annealing Furnace

Four furnaces offer temperatures as high as 1500 C, with a choice of ambient environment, N2, forming gas (H2 5%+Ar 95%), O2, and Ar.

Material Characterization

X-Ray Diffraction

Rigaku Ultima IV X-Ray Diffractometer.

Vibrating Sample Magnetometer (VSM)

Lakeshore VSM
Films and Powder Samples

BET Surface Area Measurement

Surface Area: BET Theory
Pore Distribution: BJH Method
Minimum Surface Area: 0.2m2

Scanning Electron Microscopy

Field emission microscopy
EDS Detector
Phase contrast microscopy

Dynamic Light Scattering (DLS): Melvern Zetasizer

Size: 0.3 nm to 0.01 mm
Zeta potential: 3.8 nm to 0.1 mm
Molecular Weight: 980 Da-20M Da
TemperatureL 0-90 °C

Hysteresis Loop Tracer

Hysteresis loop measure of soft magnetic materials: coercivity and power loss
Frequency: 50Hz to 1MHz

High Frequency & High Power Inductor Power Meter

Power loss measurement of soft magnetic materials
Frequency up to 20 MHz

Impedance Analyzer

LCR meter with magnetic test fixture

LCR Meter with dielectric test fixture

L, C, R Measurements up to 1GHz
Complex permeability and permittivity spectrum up to 1GHz

Microwave Characterization Suite

Microwave probe station, 7mm coaxial airline fixture, resonators, waveguides, and antennas
FMR Spectroscopy
Spinwave propagation spectroscopy
Spin Torque Transfer -FMR
Permeability and permittivity spectra