Users have access not only to the six Foundry facilities, but
also to equipment and staff in the laboratories of Affiliated Foundry
Scientists in cases where these laboratories offer capabilities
not now available in the facilities. User access to these laboratories
is requested and managed in the same manner as access to the Foundry
facilities.
A. Fabrication and Synthesis
Ion Implantation, Laboratory of Eugene E. Haller
- Accelerator
voltage range: 30 to 200 kV
- Ion mass range: 1 to 123 (Antimony)
- Target size/temperature: 4" diameter
- Temperatures down to 80 K
- Dose: strongly dependent on ion species but doses of 10+16/cm+2
are typically possible
Thin Film Deposition Equipment, Laboratory of Eugene E. Haller
- Airco-Temescal e-gun evaporator with 4 water-cooled
hearths, metal and some insulator sources exist.
- A Perkin-Elmer Model 2400 RF sputtering system with three
8" targets. Targets are exchangeable and a large collection
of different targets exists.
Ion implantation, Laboratory of Thomas Schenkel
- Ion implantation of wafer pieces in a low dose regime (<1E13
cm2) with a wide variety of ion species (all noble gases, P,
Au, Te, most other elements of the periodic table ) and with
kinetic energies of a few keV up to over 1 MeV (for heavy ions).
- Single ion implantation capability with scanning probe
microscope alignment. A spatial resolution
of <20 nm for single ion placement is currently being implemented.
Implantation can be performed with extremely high ion charge
states (e.g. Ar18+, Xe52+, and U82+) giving access to effects
of intense electronic excitation of surfaces.
Growth of transition metal ultrathin films, Laboratory of Z. Q.
Qiu
- Thin film growth in an ultrahigh vacuum system, and in
situ characterization using Low Energy Electron Energy Diffraction
(LEED), Surface Magneto-Optic Kerr Effect (SMOKE) (for magnetic
samples), and possibly Scanning Tunneling Microscopy (STM). The
film is usually in ultrathin regime (<10nm) with the thickness
control on the atomic layer level. The requirement on the substrate
size is 1cmx1cmx2mm or less. The substrate can be cleaned by
Ar ion sputtering and annealing (below 600C) in the UHV system.
Up to three thermal evaporation sources can be used at the same
time.
Synthesis of inorganic, organic and polymeric materials, Laboratory
of Don Tilley
- Syntheses that require manipulations in vacuum or under
inert atmospheres
- Syntheses of nanoparticles and nanoporous materials
- Characterization electrochemical properties; infrared
and UV-vis spectra.
- Characterization of surface areas and sample morphologies
with BET porosimetry
- Determination of thermal properties of materials integrated
thermogravimetric/differential scanning calorimetry
- Determination of polymer molecular weight distributions
with gel permeation chromatography
Synthesis of inorganic nanowires and nanotubes, Laboratory of
Peidong Yang
- Chemical vapor deposition synthesis of inorganic nanowires
- Colloidal synthesis of inorganic nanowires
- Syntheses of inorganic nanotubes
- Optical characterization of inorganic nanowire/tubes
- Thermoelectrical characterization of inorganic nanowire/tube
- Langmuir-Blodgett Nanocrystal assembly
Laboratory of Michael Crommie
Laboratory of Paul Alivisatos
Functional Polymer Laboratory, Laboratory of Jean Frechet
- Specialty dendrimers and dendronized polymers
- Stimuli-responsive organic nanoparticles
- Organic electronics: fabrication and testing equipment
B. Characterization
Spectroscopy of nanostructures, Laboratory of Y. R. Shen
- A unique coherent light source capable of generating
two independent picosecond light pulses, widely tunable between
~0.2 and ~16 microns, with pulse energy in the range of ~100
mJ per pulse and pulse repetition rate of 20 HZ. It allows all
kinds of spectroscopic studies of nano-structures. In particular,
it provides opportunities for spectroscopic studies of selective
nano-particles in ensembles using labeling techniques via selective
laser excitation. It also permits studies of nonlinear optical
properties and excitation dynamics of nano-particles.
- A complete system for sum-frequency surface spectroscopy
using the light source. Both surface electronic and surface vibrational
spectroscopy of nano-systems can be investigated.
Mechanical properties of nanoscale structures, Laboratory of Robert
O. Ritchie
- Instrumentation and expertise for characterizing electromechanical
reliability and mechanical properties at micron and sub-micron
size-scales
- Micromechanical testing systems specifically for assessment
of fatigue and wear of thin-film structures.
Raman spectroscopy, Laboratory of Joel Ager
- Access to the Raman spectroscopy lab.
–high sensitivity visible Raman microprobe with illumination
spot size of 1 micron;
–high resolution visible macro illumination Raman system;
–high sensitivity near-IR photoluminescence (PL) system;
-ultraviolet (244 and 325 nm) Raman/PL system.
–The Raman spectroscopy systems are used to evaluate size
and stress distributions in nanocrystalline semiconductors. The
PL system is used to study carbon nanotube PL. The UV Raman system
is used to characterize nanoscale catalyst supports and as an
excitation source for Raman and PL measurements on wide band
gap nanocrystals and nanotubes.
Surface science characterization of nanostructures, Laboratory
of Gabor A. Somorjai
- Tools to characterize surfaces on the atomic and molecular
level including x-ray photoelectron spectroscopy, sum frequency
generation vibrational spectroscopy, and atomic force microscopy.
- Equipment to characterize high surface area materials
by physical absorption or chemisorption and by the use of small
angle x-ray scattering.
- Tools to carry out surface chemical reactions to detect
reactants and product distributions of these reactions at various
levels of concentration.
Nanoscale characterization of magnetic and polymeric matertials
using soft x-ray scattering materials, Laboratory of Jeffrey B.
Kortright
- Soft x-rays from LBNL’s Advanced Light Source offer various
approaches to resolve structure and functional properties down
to nanometer length scales.
- Tuning to core levels of organic, transition metal, and rare-earth
elements yields tremendous resonant enhancements to electronic
properties.
- Combining core-resonant spectroscopies with angle resolved
scattering measurements allows functional and chemical properties
to be spatially resolved down to nanometer length scales.
- Techniques and instrumentation are developed for studies of
magnetic and polymeric thin films and nanostructures
Ion Beam Analysis Facility, Laboratory of Eugene E. Haller
- High Voltage Engineering AK-2500 Van de Graaff Electrostatic
accelerator
- Beam: H, He or N ions, 1 - 2 MeV
- Detection modes: Rutherford Backscattering
- Spectrometry
(RBS), Proton Induced X-ray
- Emission (PIXE), Ion Channeling, Elastic Recoil
- Spectrometry (ERS), Nuclear Reaction Analysis (NRA)
Synchrotron Radiation Spectroscopy and Diffraction, Laboratory
of Charles Fadley
State-of-the-art synchrotron radiation spectroscopic and diffraction
techniques at the LBNL Advanced Light Source are used to study
nanoscale structures of relevance to spintronics, nanoscale magnetism,
strongly
correlated oxides, and surface chemical processes. Techniques available
in a single, multi-technique experimental system include dichroic
and spin-resolved photoelectron spectroscopy, diffraction, and
holography; soft x-ray emission and resonant inelasic x-ray scattering;
and soft x-ray absorption spectroscopy. New methods have been developed
for studying buried solid-solid interfaces via soft x-ray standing
waves and for imaging local atomic structure via photoelectron
and x-ray holography. An ultrahigh-speed multichannel detector
also makes photoelectron spectroscopy with high time resolution
possible.
C. Theory
Scientific Algorithms and Applications, Laboratory of Lin-Wang
Wang
- Local density approximation ab initio calculations for
total energy and atomic relaxations for up to a few hundred atoms.
- Empirical pseudopotential calculations for the electronic
structures of thousand atom nanostructures.
- Charge patching method ab initio accuracy calculations
for thousand atom electronic structures.
- Elastic quantum transport calculation using norm conserving
pseudopotential and planewave basis.
Modeling of electronic transport in nanoscale devices, Laboratory
of Joel E. Moore
- Modeling electronic transport in nanoscale devices such
as single-electron and single-molecule transistors.
- Theory work on materials with strong inhomogeneity at
the nanoscale, as in the CMR maganites and unconventional superconductors.
This work combines numerical simulation (often classical and
quantum Monte Carlo) with analytic approaches such as Landauer
transport, the Keldysh formalism, and statistical field theory.
Computational Quantum Nanochemistry, Laboratory of Martin Head-Gordon
- Perform research on the development and application
of electronic structure theories, and associated algorithms and
software, to treat problems in chemistry at the nanoscale
- Calculate the properties of a molecule or molecular
material from first principles quantum mechanics, with the objective
of understanding and perhaps controlling electronic structure
and reactivity.
- Use a powerful suite of software tools that run on computers
ranging from PC’s and workstations to large Linux clusters,
to true supercomputers.
- Use new algorithms for linear scaling calculations using
density functional theory methods, as well as new low-scaling
implementations of many-body methods that can more correctly
describe the making and breaking of chemical bonds, and reactive
species such as diradicals and polyradicals.
- Develop new algorithms and theoretical methods to address
areas where current models are deficient.
- Combine fundamental quantum mechanics and many-body
theory with aspects of applied mathematics and numerical analysis,
as well as high performance computing.
- Use these electronic structure programs in applied projects
to study problems that bridge molecular and nanoscale chemistry.
Recent examples have included surface chemistry relevant to CO
electro-oxidation in fuelcells, biological photophysics relevant
to light-harvesting, and the study of nanomaterials with potential
diradicaloid character.
