Engineering Design

WEI-HUNG CHIANG

PERSONAL CONTACT INFORMATION

Phone: 216-***-****

**** ** **** **. *** 94 E-mail: abnhr8@r.postjobfree.com

Gainesville, FL 32608, USA http://www.linkedin.com/in/whchiang

SUMMARY

Enthusiastic Ph.D. in Chemical Engineering with extensive experience in plasma procsessing, nanomaterial

synthesis, nanostructure characterization, and device microfabrication. Ability to learn new concepts and work

individually or with team members towards finding solutions. Major strengths include conducting research,

experimentation set-up, and the documentation and presentation of findings. Seeking a research-oriented position in

chemical engineering, materials science or applied physics.

EDUCATION

09/2005-05/2009

Ph.D. Chemical Engineering, 4.0/4.0 GPA, Case Western Reserve University, Cleveland, OH, U.S.A.

Thesis advisor: Prof. R. Mohan Sankaran

Thesis title: Engineering nanocatalysts for selective growth of carbon nanotubes

09/1999-06/2003

B.S. Chemical Engineering, 3.6/4.0 GPA, National Taiwan University, Taipei, Taiwan

AWARDS & HONORS

2005-2009, Case Prime Fellowship, Case School of Engineering, Case Western Reserve University

RESEARCH PROJECT & WORK EXPERIENCE

06/2009-10/2009

Postdoctoral Research Fellow, Case Western Reserve University

Nanomaterial Design, Synthesis, Characterization, and Device Fabrication

Design, synthesis, and characterization of high-purity single-walled carbon nanotubes (SWCNTs) and size-,

composition-, and shape-controlled metal nanoparticles (NPs).

Design, fabrication and characterization of SWCNT-based devices.

09/2005-05/2009

Graduate Research Fellow, Case Western Reserve University

Nanomaterial Design, Synthesis, Characterization, and Device Fabrication

1. Continuous-flow gas-phase synthesis of metal nanoparticles (NPs).

Developed a gas-phase synthesis of dimensionally- and compositionally-tunable metal NPs (1~5 nm) with

narrow size distribution (St. Dev. ~ 15%) using a microplasma reactor.

Performing in situ aerosol size classification to study the growth of nanoparticles.

Performing HRTEM, EDS, and XRD characterizations for as-synthesized nanoparticles.

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2. Structure design, large-scale synthesis and characterization of carbon nanotubes (CNTs).

Developed a two-stage reactor scheme for large-scale synthesis of high purity SWCNTs.

Performing in situ aerosol size classification to study the catalytic growth of CNTs on nanocatalysts.

Performing HRTEM, Raman, UV-Visable-NIR absorbance, photoluminescence (PL) spectroscopy to

characterize the as-grown SWCNTs.

3. Design, fabrication and characterization of SWCNT-based thin-film transistors (TFTs).

(Prof. Chung-Chiun Liu (Chemical Engineering), and Prof. Xuan Gao (Physics), Co-Advisor)

Developed SWCNT-based ink for CNT solution process.

Developed microfabrication process of SWCNT-based TFTs.

Electrical characterization and device testing of as-fabricated SWCNT-based TFTs.

Nanostructure Design, Fabrication and Characterization

Designing nanostructure-based SERS substrates for an on-chip sensor using non-lithographic microplasma

fabrication.

Experimental investigation of microplasma patented substrates exhibiting extremely high Raman scattering

intensity enhance factor (108 – 1010).

Performing SEM, and AFM characterizations for as-prepared substrates.

09/2005-05/2009

Laboratory Assistant, Case Western Reserve University

(Prof. R. Mohan Sankaran, Advisor)

Aerosol size classification study of the size distribution of colloidal nanoparticles, and the effect of solution

environment on the protein folding behavior using a Gas-Phase Electrophoretic Mobility Molecular Analyzer

(GEMMA) system. Collaborated with various research groups in Case Western Reserve University. Trained

new employees and graduate students.

09/2003-04/2005

Mandatory service (Corporal), Army, Taiwan,

07/2002-06/2003

Undergraduate Researcher, National Taiwan University

(Prof. K.-C. Ho, Advisor)

Developed a novel electrochemical analysis method for detecting cholesterol in human serum using active

bromine species.

PUBLICATIONS

Chiang, W. H., Richmonds, C. & Sankaran, R. M., “Continuous-flow, atmospheric-pressure microplasmas: A

versatile source for metal nanoparticle synthesis in the gas or liquid phase.” Plasma Source Science and

Technology, (2009), in revision.

Chiang, W. H., Sakr M., Gao, X. P. A., & Sankaran, R. M., “Nanoengineering NixFe1-x catalysts for

gas-phase, selective synthesis of semiconducting single-walled carbon nanotubes.” ACS Nano, (2009), in

press.

Chiang, W. H. & Sankaran, R. M., “Linking catalyst composition to chirality distributions of as-grown

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single-walled carbon nanotubes by tuning NixFe1-x nanoparticles.”Nature Materials, (2009), 8, 882 - 886.

Chiang, W. H. & Sankaran, R. M., “Relating carbon nanotube growth parameters to the size and

composition of nanocatalysts.” Diamond and Related Materials, (2009), 18, 5-8, 946-953.

Chiang, W. H. & Sankaran, R. M., “Synergistic effects in bimetallic nanoparticles for low temperature

carbon nanotube growth.” Advanced Materials, (2008), 20, 24, 4857-4861.

Chiang, W. H. & Sankaran, R. M., “In flight dimensional tuning of metal nanoparticles by microplasma

synthesis for selective production of diameter-controlled carbon nanotubes.” Journal of Physical Chemistry

C,(2008), 112, 46, 179**-*****.

Chiang, W. H. & Sankaran, R. M., “Microplasma synthesis of metal nanoparticles for gas-phase studies of

catalyzed carbon nanotube growth.” Apply Physics Letters, (2007), 91, 121503.

Chiang, W. H., Cochey, M., Vimelson, R. C. & Sankaran, R. M., “Nonlithographic fabrication of

surface-enhanced Raman scattering substrates using a rastered atmospheric-pressure microplasma source.”

Apply Physics Letters (2007), 91, 021501.

TECHNICAL SKILLS

Synthesis:

Metal nanoparticles, carbon nanotubes and silicon nanowires.

Characterization and analysis:

Electron microscopy: Scanning Electron Microscopy (SEM), High-Resolution Transmission Electron

Microscopy (HRTEM), Scanning TEM (STEM), and Atomic Force Microscopy (AFM).

Optical spectroscopy: Photoluminescence (PL) Spectroscopy, Absorbance Spectroscopy, and Raman

Spectroscopy.

Material characterization: X-ray Diffraction (XRD), Energy Dispersive Spectroscopy (EDS), X-ray

Photoelectron Spectroscopy (XPS), and Auger Electron Spectroscopy (AES).

Aerosol size classification: Scanning Mobility Particle Sizer (SMPS), and Gas-Phase Electrophoretic

Mobility Molecular Analyzer (GEMMA).

Electrical characterization: Micromanipulator.

Reactor System:

Design and maintenance of microreactor and flow furnace systems.

Fabrication & Processing:

Cleanroom experience, photolithography, thin-film deposition and growth (thermal metal evaporator system),

CVD process.

SELECTED PRESENTATIONS

Chemical Engineering Department Seminar: 2009, Case Western Reserve University, Cleveland, OH.

Chiang, W. H.., “Engineering Nanocatalysts for Selective Growth of Carbon Nanotubes.”

Materials Research Society (MRS) Fall meeting: 2008, Boston, MA. Chiang, W. H. & Sankaran, R. M.,

“In flight dimensional and compositional tuning of metal nanocatalysts for gas-phase carbon nanotube

growth.”

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The Electrochemical Society (ECS) 214th meeting: 2008, Honolulu, HW. Chiang, W. H. & Sankaran, R.

M., “In flight dimensional and compositional turing of metal nanoparticles for carbon nanotube growth.”

19th European Conference on Diamond, Diamond-like materials, Carbon Nanotubes, and Nitrides,

2008, Sitges, Spain. Chiang, W. H. & Sankaran, R. M., “Synergistic effects in bimetallic nanoparticle

catalysts towards gas-phase carbon nanotube growth”

Gordon Research Conference on Plasma Processing Science: 2008, South Hadley, MA. Chiang, W. H. &

Sankaran, R. M., “Contineous-flow microplasma synthesis of metal nanoparticles for catalytic growth of

carbon nanotubes.”

Materials Research Society (MRS) Fall meeting: 2007, Boston, MA. Chiang, W. H. & Sankaran, R. M.,

“Contineous-flow microplasma synthesis of metal nanoparticles for catalytic growth of carbon nanotubes.”

American Institute of Chemical Engineers (AICHE) annual meeting: 2007, Salt Lake City, UT. Chiang,

W. H. & Sankaran, R. M., “Microplasma synthesis of metal nanoparticles for gas-phase studies of catalyzed

carbon nanotube growth.”

American Vacuum Society (AVS) annual meeting: 2007, Seattle, WA. Chiang, W. H. & Sankaran, R. M.,

“Contineous-flow microplasma synthesis of metal nanoparticles for catalytic growth of carbon nanotubes.”

PROFESSIONAL ASSOCIATIONS

American Vacuum Society (2007-present), American Institute of Chemical Engineers (2007-present), Material

Research Society (2007-present), The Electrochemical Society (2008-present)

REFERENCE

Prof. R. Mohan Sankaran (thesis advisor) Prof. Chung-Chiun Liu (thesis committee member)

George B. Mayer Assistant Professor of Engineering Wallace R. Persons Professor of Sensor Technology

office: A. W. Smith 111B and Control

Department of Chemical Engineering office: Electronics Design Center, Bingham 112

Case Western Reserve University Department of Chemical Engineering

Cleveland, Ohio, 44106, USA Case Western Reserve University

email: abnhr8@r.postjobfree.com Cleveland, Ohio, 44106, USA

telephone: 216-***-**** email: abnhr8@r.postjobfree.com

telephone: 216-***-****

Prof. Xuan Gao (project co-advisor)

Assistant Professor of Physics

office: Rock 104C

Department of Physics

Case Western Reserve University

Cleveland, Ohio, 44106, USA

email: abnhr8@r.postjobfree.com

telephone: 216-***-****

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