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Julia J. Chang

PhD candidate, Materials Science and Engineering, Iowa State University

 

Phone:

515-735-6651

 

Email:

jjchang1209@gmail.com 

 

Address:

Ames, IA, 50010

Date of Birth:

Dec. 9th, 1993

Hello! This is Julia!

I am currently a PhD student in MSE department of ISU. My research focus is the synthesis, processing, characterization and application of semiconductor and metal nano-materials, with special interest in studying optical and electro-chemical properties of colloidal semiconductor nanoparticles as well as liquid metal nanoparticles. From my PhD study, I am now equipped with: 

  • 5-year experience in solution phase synthesis, thin-film processing, photonic property and catalytic performance study of semiconductor and metal nanoparticles. Leading 3-year Intel project with 400K grants focusing on synthesis of colloidal Si, SiC, InN and TiN nanoparticles.

  • 4-year experience in nanoparticle/thin film characterizations. Professional in 10+ characterizing methods and data analysis.

  • 1-year experience in preparation (CVD) and performance analysis (CV) of supercapacitor electrode materials.

  • Participation in Environmental & Design project by assisting in biomass analysis, polymer processing and sterile experimentation.

  • Experienced in chemical engineering unit design by applying AutoCAD and ASPENplus.

  • 12 credit ex-curriculum courses taken from Physics department focusing on Condensed Matter Physics.

  • Self-learned MATLAB coding focusing on image processing by machine learning.

 EDUCATIONAL  EXPERIENCE

 EDUCATIONAL & PROFESSIONAL EXPERIENCE

2015-2020

 

 

2011-2015

 Iowa State University (ISU), Ames, IA, US
 Ph.D., Materials Science and Engineering (GPA: 3.70/4.00)

 

China University of Mining and Technology, Beijing (CUMTB), China

Bachelor of Engineering, Chemical Engineering (GPA: 3.84/4.00)

PUBLICATIONS & CONFERENCE PRESENTATIONS

RESEARCH INTERESTS & PUBLICATIONS

Colloidal nanoparticle synthesis: 

 

Due to precise controls of synthesizing conditions, ligand-assisted non-hydroic method is powerful of making nanoparticles with various sizes, shapes & compositions.

Controlled optical property of colloidal TiO2 nanoparticles 

optical image - brightness-contrast adju

Paper coming soon!

TiO2, a semiconductor material which usually exhibits white color under visible light due to its rather wide bandgap, shows unique & controllable visible light optical property as well as photo-luminescense under visible light. 

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Plasma processing of colloidal  nanoparticle assembly

Although ligands play important role in colloidal nanoparticle synthesis, it hinders the contact between the particle and the substance that it would interact with. Compared to other ligand-removal methods, plasma is effective in removing ligands from nanoparticle thin film as well as modifying the surface of mesoporous structures.

Charaterizations of nanoparticles/thin film

AWARDS & HOBBIES

2019

 

 

 

2017

 

 

2013,14

2012

Professional Advancement Grant awarded by Graduate and Professional Student Senate

Best Poster Award, MRS Fall, Boston

 

MRS Meeting Travel Sponsorship

First-class Outstanding Student Scholarship

National English Contest First Price

Enjoy sports, music, reading physics and philosophy. Curious about EVERYTHING.

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