UC Davis

Graduate Students

Vache Harotoonian

Vache is currently a PhD student in Electrical and Computer Engineering at UC Davis. After receiving his B.S. in Electrical Engineering from Purdue University, Vache worked as an RF/Hardware engineer at Rockwell Collins on the ARC-210 family of communication products. His current research interests include design, fabrication, and characterization of semiconductor devices, as well as novel terahertz sources and detectors. His current research focuses on developing high-speed, high-power heterojunction bipolar transistors (HBT) using III-V semiconductor material. Vache was the recipient of the Teaching Assistance of the Year award in 2012 by the IEEE student chapter at UC Davis.

Favorite Books: Surely You’re Joking Mr. Feynman! and anything Bukowski


  • BS 2007 Purdue University


Office: 3118 Kemper Hall
Email: vharotoo (at) ucdavis.edu

Cristian Heredia

Cristian is currently a PhD student in Electrical & Computer Engineering at UC Davis. After receiving his Bachelor of Science in Physics from Cal-Poly, San Luis Obispo, Cristian Heredia acquired micro-fabrication instruction at San Francisco State University, where he received a Master of Science in Physics. He used his training to perform X-ray spectroscopy on new solar cell materials at UC Berkeley’s Advanced Light Source and Stanford’s Synchrotron Radiation Lightsource. Currently, Cristian is a fourth-year PhD student in the Department of Electrical and Computer Science Engineering at the University of California, Davis, where he is developing a hybrid solar cell that uses photovoltaic technology for electrical and thermal energy. Last year, the Graduate School of Management awarded him a Business Development Fellowship. Currently, as an NSF Fellow he teaches science modules to 6th graders. He is interested in the intersection between technology and social responsibility. Cristian’s long-term vision is to deploy low-cost solar cell technology to developing countries in hopes of providing an alternative to fossil fuel dependency.

Favorite Movie: A Bronx Tale


  • BS 2004 Cal-Poly
  • MS 2008 San Francisco State University


Office: 3104 Kemper Hall
Email: caheredia (at) ucdavis.edu

Xin Zhao

Xin is currently a PhD student in Electrical & Computer Engineering at UC Davis. His research focuses on realization of green emitters, through incorporating II-VI semiconductor materials into well-known III-V material systems. He is also a representative of Electrical Engineering Graduate Student Association (EEGSA), which is responsible for organizing activities within the department to promote mutual understanding among students. In his spare time, he enjoys thinking about challenging but interesting puzzles. His favorite book is "The Road Less Traveled" by M. Scott Peck.

Favorite Book: The Road Less Traveled


  • BS 2010 City University of Hong Kong
  • MS 2012 Purdue University


Office: 3104 Kemper Hall
Email: xinzhao (at) ucdavis.edu