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Introduction to Solid State Lighting

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Title: Introduction to Solid State Lighting


1
I Nano therefore I am not Is the basis for
nano-education confused? Ian Ferguson Georgia
Institute of Technology 1School of Electrical and
Computer Engineering 2School of Materials Science
and Engineering Faculty Fellow in the Sam Nunn
Security Program Center for International
Strategy, Technology and Policy Atlanta, GA
30332-0250 Email ianf_at_ece.gatech.edu
a
2
Where did nano come from?
3
Was Moores Law the Driver for Nanotechnology?
The number of transistors that can be
inexpensively placed on an integrated circuit is
increasing exponentially, doubling approximately
every two years. Gordon E. Moore
4
Miniaturization continues
5
Evolution of CMOS technology, 1960 - 2020
6
Decade of Innovations Keeping up with Moores Law
7
Timeline
http//www.foresight.org/nano/history.html
  • 1959 - Feynman gives after-dinner talk describing
    molecular machines building with atomic precision
  • 1974 - Taniguchi uses term "nano-technology" in
    paper on ion-sputter machining
  • 1977 - Drexler originates molecular
    nanotechnology concepts at MIT
  • 1981 - First technical paper on molecular
    engineering to build with atomic precision - STM
    invented
  • 1985 - Buckyball discovered
  • 1986 - First book published - AFM invented -
    First organization formed
  • 1987 - First protein engineered - First
    university symposium
  • 1988 - First university course
  • 1989 - IBM logo spelled in individual atoms -
    First national conference
  • 1990 - First nanotechnology journal - Japan's
    STA begins funding nanotech projects
  • 1991 - Japan''s MITI announces bottom-up "atom
    factory" - IBM endorses bottom-up path -
    Japan's MITI commits 200 million - Carbon
    nanotube discovered
  • 1992 - First textbook published - First
    Congressional testimony
  • 1993 - First Feynman Prize in Nanotechnology
    awarded - First coverage of nanotech from White
    House - "Engines of Creation" book given to Rice
    administration, stimulating first university
    nanotech
  • center
  • 1994 - Nanosystems textbook used in first
    university course - US Science Advisor advocates
    nanotechnology

8
Timeline cont.
  • 1995 - First think tank report - First industry
    analysis of military applications
  • 1996 - 250,000 Feynman Grand Prize announced -
    First European conference - NASA begins work in
    computational nanotech - First nanobio
    conference
  • 1997 - First company founded Zyvex - First
    design of nanorobotic system
  • 1998 - First NSF forum, held in conjunction with
    Foresight Conference - First DNA-based
    nanomechanical device
  • 1999 - First Nanomedicine book published - First
    safety guidelines - Congressional hearings on
    proposed National Nanotechnology Initiative
  • 2000 - President Clinton announces U.S. National
    Nanotechnology Initiative - First state research
    initiative 100 million in California
  • 2001 - First report on nanotech industry - U.S.
    announces first center for military applications
  • 2002 - First nanotech industry conference -
    Regional nanotech efforts multiply
  • 2003 - Congressional hearings on societal
    implications - Call for balancing NNI research
    portfolio - Drexler/Smalley debate is published
    in Chemical Engineering News
  • 2004 - First policy conference on advanced
    nanotech - First center for nanomechanical
    systems
  • 2005 - At Nanoethics meeting, Roco announces
    nanomachine/nanosystem project count has reached
    300
  • 2006 - National Academies nanotechnology report
    calls for experimentation toward molecular
  • manufacturing

9
Controllable dot size and light emission energy
All samples have anti-surfactant
25 nm
10
Ground state exciton energy
  • Interband optical transition with
  • 30 nm of diameter
  • Height lt 4.1 nm
  • ? Confinement dominant Blue shift
  • Height gt 4.1 nm
  • ? Piezoelectric effect dominant Red shift
  • A fair agreement with experimental data

11
Has policy driven the birth of nanotechnology?
  • Bomb
  • NSF
  • Space race
  • Nanotechnology
  • What are the consequences?

12
The perceived scientific method
  • Science
  • Engineering
  • Technology
  • Societal Impact

Value perceived by society
13
Did the chicken come before the egg?
  • Nano-Science
  • Nano-Engineering
  • Nano-Technology
  • Na, no-Societal Impact!

14
The Second WaveNanotechnology is shaping
the world atom-by-atom, the builders final
frontier.
Anything you ca do I can do better!
will influence virtually every man-made object
as well as the prevention, diagnosis and
treatment of disease during the 21st century.
15
Policy and Controversy
  • http//www.nanotech-now.com/Press_Kit/nanotechnolo
    gy-history.htm
  • Since 2000, awareness of nanotechnology among
    environmental activists, regulators, and
    lawmakers has been on the rise. Environmental
    organizations have expressed fears about the
    potential ecological and health consequences of
    mainstream nanotechnology, and have called for
    increased research into safety of nanoparticles.
    The Drexler version of advanced nanotechnology
    has also been the subject of public fear, largely
    centered on the notion that nanotechnology could
    spiral out of control and convert all life on
    Earth into "gray goo." Drexler, who originally
    introduced this apocalyptic prospect in Engines
    of Creation, has since repeatedly distanced
    himself from it-but gray goo retains its grip on
    the public imagination. There are other serious
    reasons to be worried about the development of
    nanotechnology, including the risk of severe
    economic disruption the possibly dehumanizing
    effects of using nanotechnology on ourselves and
    the potential criminal, military, or terrorist
    use of advanced nanotechnology. A few
    organizations are paying full-time attention to
    these concerns, including the Foresight Institute
    (established in 1986) and the Center for
    Responsible Nanotechnology (established in 2002).
    Public policy discussions have barely begun to
    reflect those long-term concerns. Although some
    agencies in the U.S. government have been
    involved in nanotechnology since the 1980s,
    federal funding of nanotechnology research did
    not begin in earnest until the late 1990s. In
    2000, the National Nanotechnology Initiative was
    established to coordinate the government's work
    in nanotechnology soon, federal spending on
    nanotechnology is scheduled to cross the 1
    billion-per-year mark. Along with the increased
    funding has come a government commitment to
    investigate the "social, economic, health, and
    environmental implications" of nanotechnology. As
    public interest continues to grow, and as
    scientific progress make advanced nanotechnology
    seem ever more attainable, policymakers are
    likely to increasingly turn their attentions to
    the promise and peril of nanotechnology. 1.
    Adapted from Adam Keiper, "The Nanotechnology
    Revolution," The New Atlantis, Summer 2003
    (www.TheNewAtlantis.com). Updated on 10 August
    2004, and used with permission.
  • http//www.thenewatlantis.com/publications/the-na
    notechnology-revolution

16
What is the educational basis for nanotechnology
in EE, ECE, etc?
17
National Nanotechnology Infrastructure Network
(NNIN)
Mission Enable rapid advancements in science,
engineering and technology at the nano-scale by
efficient access to nanotechnology infrastructure
Approach An NSF funded network of shared open
facilities distributed throughout the country
that will enable the full creative abilities of
the nanoscale user community to emerge
18
Marcus Nanotechnology Building
  • 90M Facility Investment, 67M Equipment
    Investment
  • 190,000 GSF building
  • 30,000 GSF cleanroom space50 initial fit-out
  • 1/3 organic (biological) cleanroomlife sciences
  • 2/3 inorganic (electronic) cleanroomphysical
    sciences
  • 30,000 GSF supporting lab space at full fit-out
    (three lab floors)
  • Base construction complete
  • Tool fit-upequipment installation, specialized
    utilities, and supporting infrastructure in
    progress

19
Georgia Tech Education and Outreach in
Nanotechnology
  • Georgia Techs education outreach
  • programs have seen substantial growth
  • since the inception of NNIN

20
Georgia Tech Education and Outreach in
Nanotechnology
  • Current programs include
  • Summer camps
  • K-12 school visits (on and off site)
  • Teacher workshops
  • Technical workshops
  • Research Experience for Teachers
  • Research Experience for Undergraduates
  • New in 2009 Nanooze the Exhibit
  • Museum exhibit with 7 interactive stations
  • Housed at the NRC beginning in early April
  • Free to the public

Nanotechnology Explorations Summer 2008
21
Integrating Nanotechnology Education at Georgia
Tech
  • Nanotechnology Certificate Program for
    undergraduate students
  • 15-credit program taken over the junior and
    senior years
  • 9 lecture credits, 3 laboratory credits, 3
    research credits
  • Lecture Courses give rigorous and comprehensive
    background in NSE
  • - Nanoscale Chemistry Chemical Processing
  • - Nanoscale Physical Properties
    Characterization
  • - Nanoscale Devices (along with demos of
    micro/nanoelectronic fab.)
  • Nanosystems Laboratory is the capstone course
  • Additional lectures from invited speakers on
    nanoethics, nanotoxicology, nanotechnology
    commercialization, and nanotechnology
    entrepreneurship

22
Nanosystems Laboratory (under development)
  • Set of four experimental and computational
    stations
  • Nanomaterial synthesis and characterization ?
    Computational design of
  • nanodevice fabrication process ?
    Implementation of nanodevice fabrication
  • process ? Characterization of nanodevice
  • Tools synthesis reactor, AFM, COMSOL
    multiphysics, optical microscope,
  • impedance spectrometer
  • First set of modules on metal oxide (e.g. SnO2)
    nanobelt synthesis and devices

Measurement and analysis of electronic
properties upon exposure to gas molecules
Nanobelt synthesis and characterization
Modeling and implementation of dielectrophoretic
nanobelt assembly into a sensor array
23
The technology is developing but where are the
jobs
Piezotronics
24
NNIN Education
Under construction
25
Working in Nanotechnology
26
TinyTechJobs
27
Discussion points
  • If we already own nanotechnology then how can we
    take it back
  • Need a byline EE, ECE, etc. the home of Nano
  • Do we want to stress nanotechnology especially if
    it looks like if has failed to have societal
    impact
  • In nanotechnology - Materials drive application
  • In EE, ECE, etc. - Applications drive materials
  • Focus on what is next

28
I Nano therefore I am not Is the basis for
nano-education confused? Ian Ferguson Georgia
Institute of Technology School of Electrical and
Computer Engineering School of Materials Science
and Engineering Faculty Fellow in the Sam Nunn
Security Program Center for International
Strategy, Technology and Policy Atlanta, GA
30332-0250 Email ianf_at_ece.gatech.edu
W
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