[BNC-all] MONDAY MEMO

[Deborah Starewich]

MONDAY MEMO, MARCH 26, 2007
 
 
CONTENTS
 
1. Announcements
 
1.1: BNC All User Make Up Meetings: Wednesday, 03.28, 8:00am or Thursday,
03.29, 8:00am, BRK 1001.
 
1.2: Birck Annual Symposium of Research Programs: information update
 
1.3: HOLD THE DATE: Thursday, April 26, 11:00, MRGN 121, ³Microscale
Platforms for Applications in Global Health Diagnostics,² by Dr. Bill
Rodriguez, Assistant Professor of Medicine, Harvard Medical School
 
 
2. Faculty/Staff/Student Awards and Honors
 
2.1:  NONE
 
 
3. Seminar Announcements
 
3.1: Monday, March 26, 6:00pm, EE 170: ³GE Healthcare Industry Presentation²
 
3.2: Monday, March 26, 8:00pm, Krannert Auditorium: ³Coming Together to
Debate and Deliver on the Challenges Confronting the World,² by Archbishop
Celestino Migliore
 
3.3:  Wednesday, March 28, 2:00pm, EE 317: ³Molecular Interferometry,² by
David Nolte, Physics Department; NCN/INAC 501 Tutorial
 
3.4: Thursday, March 29, 10:30am, BRK 1001: ³Nitride Metal/Semiconductor
Multilayers and Superlattices for Solid State Thermionic Energy Conversion,²
by Vijay Rawat, doctoral candidate, Materials Engineering, Purdue University
 
3.5: Friday, March 30, 10:30am, BRK 2001: ³III/V Nanowires for
Nanoelectronics,² by Werner Prost, University of Duisburg-Essen
 
3.6: Friday, March 30, 3:30pm, MSEE B012: ³Interface Properties from Their
Equilibrium Fluctuations,² by Moneesh Upmanyu, Colorado School of Mines
 
 
4. Workshops/Conferences
 
4.1: College Teaching Workshops: from Center for Instructional Excellence .
. . Once again, staff will present the entire CTW-1 series over three days
in May.  In addition, the popular ³Presentation Techniques² session will be
repeated in April.  These sessions are designed to improve the teaching
skills of Purdue faculty, staff, and graduate teaching assistants.  To
register online for any or all of the sessions, visit:
http://www.cie.purdue.edu/workshop/register/index.cfm
 
 
5. Job/Fellowship opportunities
 
5.1: None
 
 
6. Life on the Outside
 
6.1: Prof. Ziaie welcomes new family member
 
 
****************
1. Announcements
****************
 
1.1: BNC All User Make Up Meetings: Wednesday, 03.28, 8:00am and Thursday,
8:00am, BRK 1001. Make up meetings are scheduled for BNC¹s once-per-semester
all-user.  If are a user of the cleanroom and/or laboratories, it is
imperative that you attend a User Meeting.  If you did not attend one of the
earlier held meetings (March 19 or 20) and you do not attend one of these
make up meetings, you will lose your access privileges.
 
 
1.2:  Birck Annual Symposium of Research Programs: information update

If available, please plan on attending the presentations describing
projects, people, and capabilities enhanced by research performed in the
Birck Center (MRGN 121; 3:00). Presenters include Profs. Rasid Bashir; Vlad
Shalaev; David Janes; Ron Reifenberger, and Tim Fisher.
 
Be sure that your poster has been hung in the building or is ready for
display on an easel on Monday, April 2, 2007 by 2:00PM [TIME CHANGED].  For
work that is complete, consider preparing it for hanging somewhere in the
building (think about best location); if your work is in progress, we can
still hang it but it might be best to present it on an easel.  Both options
are available.
 
If you¹ve missed the powerpoint templates, let me know; I¹ll send them to
you again.  There are now several printed samples on display in the
building; i.e., near the Surface Analysis Lab (across from the kitchen);
upstairs as you enter from Bindley; downstairs near the AFM lab.
 
Print your posters (FOR FREE!) in the Morgan Entrepreneur building (corner
of State and Intramural; upstairs about halfway down the hall, on the left;
I believe the room is 261) -- it¹s a computer lab; sign in with your ecn
account and print from powerpoint (there are instructions there).  Parijat
Deb has printed there, you may ask him how easy it is.
 
I¹m creating a ³brochure² for our event, please let me know the title and
authors of your posters when possible.
 
Poster session will run concurrently with the Discovery Park Advisory
Council reception.  Please be available at your poster to answer questions
from 5:30 until 7:30 (dress: casual business).  We will hold a reception for
participants at 7:30 UPSTAIRS Atrium area.
 
As this event is a ³dry run² for our first external advisory committee
meeting (to be held next year at the time), we welcome all comments or
suggestions.
 
 
1.3: HOLD THE DATE: Thursday, April 26, 11:00, MRGN 121, ³Microscale
Platforms for Applications in Global Health Diagnostics,² by Dr. Bill
Rodriguez, Assistant Professor of Medicine, Harvard Medical School.
 
Of the 40 million people living with HIV infection worldwide, fewer than 10%
are aware that they¹re infected. Fewer than 500,000 have access to the blood
tests (CD4 cell counts and HIV RNA levels) essential for effective
treatment.  Of the 5,000 people dying each day from tuberculosis, half are
undiagnosed; the best available test for diagnosing TB ‹ the light
microscope ‹ was invented 350 years ago. Diagnostic tests for other major
global diseases ‹ dengue, malaria, typhoid fever, diarrhea ‹ are equally
unusable in resource-limited settings, like sub-Saharan Africa, where the
global burden of disease rests.  Can advances in microfabrication,
microfluidics, MEMS, and biosensing be applied to the development of
diagnostics for these diseases?  Can they be made into truly point-of-care
diagnostic products, against unforgiving specifications?  We have applied
these technologies to global health, and made progress in point-of-care
devices for CD4 cell counting, HIV RNA measurement, and TB diagnosis.  A
review of the biological, technical, product development, intellectual
property, funding, and commercialization challenges to unleashing the
potential of bioengineering methods to have a major impact on global health
will be presented.
 
 
****************
2. Awards/Honors
****************
 
2.1: None
 
 
************************
3. Seminar Announcements
************************
 
3.1: Monday, March 26, 6:00pm, EE 170: ³GE Healthcare Industry
Presentation,² by Ananth Mohan; FREE Fu Lam Chinese Food. Bring an updated
resume
 
3.2: Monday, March 26, 8:00pm, Krannert Auditorium: ³Coming Together to
Debate and Deliver on the Challenges Confronting the World,² by Archbishop
Celestino Migliore
 
Archbishop Migliore has a Master¹s Degree in Theology and a Doctorate in
Canon Law.  After graduating from the Pontifical Academy for Ecclesiastical
Diplomacy, he joined the Holy See¹s diplomatic service.  He served in Angola
as attaché and second secretary to the Apostolic Delegation; as alternate
Observer to the Organization of American States; as Apostolic Nunciature in
Egypt and Warsaw, Poland; and as the Permanent Observer of the Holy See to
the Council of Europe in Strasbourg, France. In 1995, he was appointed
Under-Secretary of the Section for Relations with States of the Secretariat
of State at the Vatican, where he also fostered relations with several Asian
countries without formal diplomatic relations with the Holy See, traveling
to Beijing, Hanoi, and P¹yongyang as Head of Delegation of the Holy See. In
2001, he led the Delegation of the Holy See to the United Nations Conference
on Illicit Trade in Small Arms and Light Weapons and to other conferences,
symposia and panels held in various European capitals on issues related to
the World Trade Organization, the Economic Commission for Europe, the
European Union, and the Middle East. In 2002, His Holiness Pope John Paul II
nominated Archbishop Migliore as Apostolic Nuncio and Permanent Observer of
the Holy See to the United Nations in New York.  Archbishop Migliore has
given numerous statements at the United Nations on a wide range of current
issues and has delivered many addresses at conferences, colleges, and
universities.  
 
 
3.3:  Wednesday, March 28, 2:00pm, EE 317: ³Molecular Interferometry,² by
David Nolte, Physics Department; NCN/INAC 501 Tutorial
 
ABSTRACT and BIO not available for this announcement.
 
 
3.4: Thursday, March 29, 10:30am, BRK 1001: ³Nitride Metal/Semiconductor
Multilayers and Superlattices for Solid State Thermionic Energy Conversion,²
by Vijay Rawat, doctoral candidate, Materials Engineering, Purdue University
 
ABSTRACT: The recognition in the 1990¹s that nanostructured materials have
the potential to significantly enhance the performance of solid-state energy
conversion devices prompted an increase in research activity that has been
bolstered recently by the current energy/global warming crisis.
Thermoelectricity is a type of solid state energy conversion process where
the thermal gradient across a bulk material is used to generate electrical
power.  Thermoelectric devices are potentially applicable in multiple areas
such as waste heat recovery systems for automobiles and power plants,
steam-free powering of naval vessels, thermal management in integrated chips
and terrestrial power generators employing concentrator solar cells.
Although much work has been done on development of bulk and thin-film
nanostructured thermoelectric materials, these material are not yet
efficient enough to compete with conventional power generators. Recently, a
different approach for thermal-to-electrical energy conversion was proposed
that utilizes thermionic transport in metal-semiconductor multilayers or
superlattices with nanoscale periods, unlike the diffusive transport in
conventional thermoelectrics (Mahan et. al., PRL (1998), Shakouri et. al.
APL (1997)). Subsequent theoretical work showed that cross-plane transport
through such metal/semiconductor superlattices has the potential to yield
values of the figure-of-merit that are much higher than those of currently
available thermoelectric materials.
 
The primary challenge involved in realizing a solid-state thermionic energy
converter is selecting materials suitable for fabrication of stable
superlattices with a high degree of crystalline order.  The integration of
materials with disparate electrical and physical properties in superlattices
with nanoscale periods requires consideration of several aspects of
materials compatibility, including a) the similarity in crystal structures
and lattice parameters necessary to initiate and sustain superlattice
growth, b) the thermodynamic stability of the constituent materials at high
operating temperatures required for thermionic generators (hot side
temperatures of 300 to 650°C), and c) comparable surface and interfacial
energies to maintain a Frank-van der Merwe (i.e. layer-by-layer) growth
mode. Considering all these constraints, we have identified TiN/GaN and
ScN/ZrN as two potential material systems and in this presentation, I will
discuss the suitability of these materials for thermionic energy converters.
I will also present the preliminary structural, thermal and electrical
measurements of these material systems.
 
BIO: Vijay Rawat is a doctoral candidate in Materials Engineering at Purdue
University and has been working with Prof. Tim Sands since 2004.  He
received his Bachelor of Technology in Metallurgical and Materials
Engineering from Indian Institute of Technology, Kharagpur (India) in 2001,
and his MS in Materials Engineering from Purdue University in 2003.
 
 
3.5: Friday, March 30, 10:30, BRK 2001: ³III/V Nanowires for
Nanoelectronics,² by Werner Prost, University of Duisburg-Essen
 
ABSTRACT: The vapor-liquid-solid growth mode provides high quality crystals
wires at the diameter of the nanoscaled seed element.  This approach offers
the growth of highly mismatched materials due a gradual lattice constant
matching of substrate to the wire material. This talk addresses promising
combinations of III/V materials to standard substrates like GaAs, InP and
Silicon.  Moreover, both electronic and optoelectronic will be presented
exhibiting already high performance, i.e. the transconductance of InAs FET
in excess of 4 S/mm exceeds any other III/V or silicon based approach.
Finally, the challenge of integration technologies for a future monolihtic
implementation in large scale circuits will be addressed.
 
BIO: Werner Prost is member of the technical staff at the University
Duisburg-Essen.  He received the PhD degree in electrical engineering from
Duisburg University in 1989.  His main interest is to contribute to the
development of electronic- and optoelectronic devices at the nanoscale for
communication technology by means of advanced heterostructure technology.
He has (co-)authored more than 170 papers in scientific journals and
conference proceedings.  Prost is a member of the Center of Excellence SFB
445 ³Nanopartikels from the Gas phase² and of the Priority Program SPP 1165
³Nanowires and Nanotubes,² the ³German Crystal Growth Association,² and an
overseas member of the technical group on electron devices of the Japanese
Institute of Electronics, Information and Communication Engineers.
 
3.6: Friday, March 30, 3:30pm, MSEE B012: ³Interface Properties from Their
Equilibrium Fluctuations,² by Moneesh Upmanyu, Colorado School of Mines
 
ABSTRACT: Thermodynamic and kinetic properties of interfaces play a central
role in the interplay between growth and form of interfacial
microstructures. Due to the limitations associated with accessible
spatio-temporal scales in experiments and also in atomic-scale simulations,
extracting these properties has been challenging. In this talk, I will
present our recent work on theoretical frameworks and associated
computational techniques aimed at extracting equilibrium interface
properties, mainly their mobility and stiffness, from their fluctuations.
The generality of this technique combined with inherent spatio-temporal
efficiency permits extraction of interface properties in wide range of
material systems. As validation, I will present results on homophase
interfaces, or grain boundaries in pure aluminum. The misorientation and
temperature dependence properties indicate a structural coupling between
these properties that sets the overall anisotropy of the grain boundary
properties. Extension of the techniques to include the effect of impurities
provides for the first time a direct measure of the impurity drag effect.
Ongoing theoretical analyses will be presented, which require extension of
classical Brownian motion of particles to that in a binary medium.
Implications for microstructural evolution during annealing phenomena will
be discussed.
 
BIO: Dr. Moneesh Upmanyu was born in Bombay, India, and received his B.
Tech. degree in Metallurgical Engineering and Materials Science from the
Indian Institute of Technology, Bombay, in 1995, and Ph.D. degree in
Material Science & Engineering with a minor focus in Computational Materials
Science from the University of Michigan in 2001. He was also a visiting
Graduate Student and then a Postdoctoral Research Fellow in the Mechanical
and Aerospace Engineering Department and (then) Princeton Materials
Institute at Princeton University. Following that, he spent a year as a
Postdoctoral Research Scientist in the Computational Materials Science
Division at Oak Ridge National Laboratory before accepting a position as an
Assistant Professor in the Engineering Division and the Materials Science
Program at Colorado School of Mines in Fall 2002. He heads the Group for
Simulation and Theory of Atomic-scale Material Phenomena (stamp) and is now
also affiliated with the Bioengineering and Life Sciences Program within the
Engineering Division. Dr. Upmanyu¹s research is aimed at exploring
atomic-scale phenomena using computational techniques and theoretical
frameworks in several classes of material systems, both in nature and
technology. His interests range from interfacial phenomena in
polycrystalline microstructures, structure-morphology-property relations in
thin films and wires, and atomistics, mechanics & self-assembly of
semi-flexible filamentous aggregates as well as their networks in biology
and technology. Targeted material systems include grain boundary
microstructures in crystalline materials, metallic and semiconducting thin
films, inorganic nanowires, nanotubes and their assemblies, and soft
filamentous assemblies such as DNA, twisted protein aggregates, and their
networks. His group¹s principal expertise is in computational techniques
such as molecular dynamics and Monte-Carlo based methods and their links
with continuum methods such as phase field and finite-element methods as
well as meso-/continuum theoretical frameworks. Dr. Upmanyu is the recipient
of several awards including the Graduate Student Medal (Materials Research
Society) and the Outstanding Young Scientist Award (Recrystallization &
Grain Growth Congress). He is a member of the Materials Research Society
(MRS), The Minerals, Metals and Materials Society (TMS), The American
Physical Society (APS), The American Society for Metals (ASM) and Society
for Industrial and Applied Mathematics (SIAM).
 
 
************************
4. Workshops/Conferences
************************
 
4.1: College Teaching Workshops: from Center for Instructional Excellence .
. . Once again, staff will present the entire CTW-1 series over three days
in May.  In addition, the popular ³Presentation Techniques² session will be
repeated in April.  These sessions are designed to improve the teaching
skills of Purdue faculty, staff, and graduate teaching assistants.  To
register online for any or all of the sessions, visit:
http://www.cie.purdue.edu/workshop/register/index.cfm
 
 
********************************
5.  Fellowship/Job Opportunities
********************************
 
5.1: None
 
 
********************************
6.  Life on the Outside
********************************
 
6.1: Prof. Ziaie welcomes new family member ­ Keyon Andrew Ziaie, born
03.15, 12:19PM, weighing in at 7 pounds, 10 ounces and measuring 20 inches
long
 



Deborah S. Starewich
Administrative Assistant to Timothy D. Sands, Director
Birck Nanotechnology Center
Purdue University

765-494-3509
dstarewi at ecn.purdue.edu

http://www.nano.purdue.edu/



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