People

Principal Investigator

IGOR BARGATIN

Associate Professor,
Mechanical Engineering and Applied Mechanics

office: Towne 277
tel: 215-746-4887
email: bargatin@seas.upenn.edu

Current Group Members

MATTHEW CAMPBELL

Postdoctoral Scholar

website: http://www.mcampbell.info/

email: cammat@seas.upenn.edu

Matt is a postdoctoral researcher designing spacers for thermionic energy converters and lightweight wing materials for miniature flying robots.  Before coming to the University of Pennsylvania, he did his doctoral work at Stanford University, was a postdoctoral researcher at Sandia National Laboratories, and worked for a non-profit organization in the Philippines. 

WUJOON CHA

Ph.D. student, Mechanical Engineering and Applied Mechanics

email: wujoon@seas.upenn.edu

Wujoon is a Ph.D candidate working on making various structures using nano-/micro-fabrication techniques. One of the structures he is working on is AFM cantilever with hollow cross-section that can improve imaging speed and could be used for biological and chemical application.

MOHSEN AZADI

Ph.D. student, Mechanical Engineering and Applied Mechanics

email: azadi@seas.upenn.edu

Mohsen is a PhD student working on theory development and experimental study of mid air levitation of macroscopic structures using light. He also works on nano/micro-fabrication and testing of specific parts for Thermionic Energy Converters (TECs) with our collaborators at SPARK Thermionics.

LEO LU

Ph.D. student , Chemistry

email: zplu@sas.upenn.edu

After receiving Bachelor of Science from Department of Chemistry and Chemical Engineering at Nanjing University in China, Leo joined the Bargatin group in 2019. He is currently working on the characterization of thermionic spacer and carbon nanotube levitation. In his spare time, he likes music, tennis, and design.

TOM CELENZA

Ph. D. Student, Mechanical Engineering and Applied Mechanics

email: tcelenza@seas.upenn.edu

Tom is a first year PhD student working on creating ultrathin carbon fiber veneers using an ultraviolet light curable epoxy. Additionally, he is working on forming foldable versions of these carbon fiber veneers that can be formed into the body of a miniature aerial vehicle. Before coming to Penn, he received his bachelor’s degree in Mechanical Engineering from the University of Delaware.

ANDY ESKENAZI

Vagelos Integrated Program in Energy Research (VIPER) Class of 2022

email: andyeske@hotmail.com

Originally from Buenos Aires, Argentina, Andy studies Mechanical Engineering and Math, but he also has strong interests in Chinese language. Since he joined the lab in the Spring of 2019, he has been very excited about all of the projects. In particular, Andy enjoys taking measurements of the thermionic spacers, as well as learning about the radiometer and the photophoretic levitation. Overall, he is very happy to work in such a great group.

PEARCE NASH

Mechanical Engineering and Applied Mechanics Class of 2023

email: pnash@seas.upenn.edu

Pearce is interested in renewable energy innovation and plays for the Penn Rugby Team. He is excited to work with a motivated and diverse team.

LEAH TESFA

BSE Student, Mechanical Engineering and Applied Mechanics Class of 2024

email: ltesfa@seas.upenn.edu

Leah is an undergraduate student studying Mechanical Engineering and Applied Mechanics and is particularly interested in energy conservation. She is excited to later use her acquired skills from Penn to give back to her country, Zimbabwe, by building up its energy sector. During her time at Penn she also plans to minor in engineering entrepreneurship and computer science. 

As a Penn World Scholar Class’24, Leah, an aspiring global leader, also aims to be a role model for young African women in engineering like herself.

ROHAN BAGCHI

Vagelos Integrated Program in Energy Research (VIPER) Class of 2024

email: rbagchi@sas.upenn.edu

Rohan is from Albany, New York, and he is planning to major in Chemistry and Chemical and Biomolecular Engineering. He is currently working on COMSOL simulations of Nanocardboard. In his free time, Rohan enjoys playing and watching baseball, basketball, and soccer. 

Group Alumni

GEORGE POPOV

Vagelos Integrated Program in Energy Research (VIPER) Class of 2021

email: popovg@seas.upenn.edu

George is an undergraduate in the VIPER program studying Mechanical Engineering & Applied Mechanics and Physics, and he has been with the Bargatin Group since Spring 2018. He primarily focuses on the photophoretic levitation of Mylar, alumina, and carbon nanotube structures and the design of compact, lightweight wings using nanofabrication processes. He has also assisted in studying nanocardboard levitation and characterizing thermionic devices. George loves the broad intersection of disciplines he finds in the lab and the variety of challenges and learning it offers. 

AKSHAT JAIN

MSE student, Mechanical Engineering and Applied Mechanics, class of 2020

email: akshatj@seas.upenn.edu

Akshat is a Master’s student in the Material Science and Engineering Department. Since he joined the group in 2019, he has worked on characterization of thermionic spacers in the past and is currently working on optimization of levitating sheets using semiconducting nanoparticles. Aside from the levitations project, he is also learning about the applications of Mechanical Meta plates in AFM cantilever beams. In his free time he likes to sing and compose music. 

PRATIK PONNARASSERY

MSE student, Mechanical Engineering and Applied Mechanics, class of 2020

email: pratikp@seas.upenn.edu

Pratik is an MSE student in the Mechanical Engineering and Applied Mechanics department. He is helping the group with fluid and thermal simulation studies for the nanocardboard levitation and crookes radiometer projects.

AARUSHI SINGH

High School Summer Volunteer, Class of 2020

Currently a Penn M&T Student

Aarushi is a high school student from Episcopal Academy interested in pursuing physics and engineering. She primarily writes MATLAB code for analyzing data from AFM cantilever testing and generating airfoil designs for nanofabrication. She also helped create the new website of the group.

JOSUÉ LEON

BSE student, Mechanical Engineering and Applied Mechanics

email: josuel@seas.upenn.edu

Josué is an undergraduate pursuing a BSE in mechanical engineering and applied mechanics. He focuses on writing MATLAB code for creating the thermoionic spacers using photolithography.

AVERY JI WON BANG

Vagelos Integrated Program in Energy Research (VIPER) Class of 2019

Avery is a VIPER undergraduate student pursuing a B.S.E. in Mechanical Engineering and B.S. in Physics. She processes data  of a spacer from a thermal video using MATLAB for the thermionic conductor project to find the conductance. Avery also works on MATLAB code to analytically calculate the expected temperatures for the levitation project. 

CHRIS STANCZAK

Vagelos Integrated Program in Energy Research (VIPER) Class of 2020

Currently an engineer at Holtec International

JOHN CORTES

Ph.D. student, Mechanical Engineering and Applied Mechanics

Currently a Mechanical Engineer at Lawrence Livermore National Laboratory

SAM NICAISE

Postdoctoral Scholar

Currently a Senior Engineer at nLIGHT

PROMISE ADEBAYO-IGE

Undergraduate researcher,
Chemical and Biomolecular Engineering

Currently a Ph.D. student in nuclear engineering at the University of Tennessee, Knoxville

CHEN LIN

Ph.D. student, Mechanical Engineering and Applied Mechanics

Currently a Research Scientist at KLA Corporation

DREW LILLEY

Vagelos Integrated Program in Energy Research (VIPER) Class of 2017

Currently a Ph.D. student at University of California, Berkeley

JONATHAN BRYAN

MSE Class of 2016

Currently a Ph.D. student at Arizona State University

NUPURA RAVISHANKAR

Mechanical Engineering & Applied Mechanics MSE Class of 2017

Currently an R&D Engineer at Intel Inc.

KEIVAN DAVAMI

Postdoctoral Scholar

Currently an Assistant Professor at the University of Alabama

PENGCHENG JIAO

Postdoctoral Scholar

Currently a Research Professor at Zhejiang University

LIN ZHAO

Master’s degree in Nanotechnology, 2014

Currently a PhD student at Massachusetts Institute of Technology

AKSHAY ANANTHAKRISHNAN

Master’s degree in Mechanical Engineering and Applied Mechanics, 2015

Currently a PhD student at University of Pennsylvania

ERIC LU

Vagelos Integrated Program in Energy Research (VIPER) Class of 2016

Currently an independent software developer and entrepreneur