OBJECTIVE
To obtain a full time position as an engineer in the semiconductor field
SUMMARY
PhD candidate with research on polymer thin film solar cells for more than 2 years.
Significant hands-on experience with fabrication and characterization of solar cell devices to understand device physics and advance the performance of devices.
Solid knowledge of semiconductor physics/devices and processing.
Highly self-motivated, problem solver, teamwork with great written and verbal communication skills, and excellent interpersonal skills.
EDUCATION
Iowa State University Ames, Iowa
PhD Student with Dr. Sumit Chaudhary, Electrical Engineering Aug 2009 - Present
Research field in Organic Photovoltaic (OPV); Expected graduation in Fall 2013
East China Normal University Shanghai, China
Bachelor of Science, Microelectronics GPA: 3.65/4 Sep 2005 – Jun 2009
Took courses widely from circuit design, VLSI to semiconductor
Shanghai Jiao Tong University Shanghai, China
Exchange student in Microelectronics department Sep 2007 – Feb 2008
RESEARCH EXPERIENCES
Research Assistant in Microelectronics Research Center
1. Microlens array induced light absorption enhancement in OPV April 2012-Sep 2012
• Fabricated OPV devices with and without microlens array to compare within two types of polymer systems.
• Employed current-voltage, optical absorption, and external quantum efficiency (EQE) characterization of OPV devices and showed enhancement from microlens array.
• Supported microlens array induced enhancement with absorption and electrical field simulation from collaborator using planewave-based transfer matrix method.
2. Investigation of different annealing treatments in OPV Feb 2011-Aug 2011
• Applied different combinations of annealing treatments in P3HT:PCBM bulk heterojunction solar cells.
• Different structural and optoelectronic characterizations including light IV, absorption, quantum efficiency, CV-CF, Voc vs Light intensity, atomic force microscopy and mobility measurement based on SCLC were employed to analyze and compare different annealing effects comprehensively.
• The results and conclusions generate new information and complement other research results on annealing effects.
3. Combining bulk and planar structures in OPV Sep 2010-Nov 2010
• Examined the sandwich structure of bulk and planar heterojunction in OPV.
• Compared single bulk structure and bulk-planar structure, and showed that OPV with just single bulk structure has the highest performance.
4. Other experiments with new materials and structures
• Fabricated OPV using new polymers from Prof. Jeffries-EL of Chemistry department at ISU.
• Fabricated OPV using semi-transparent metal electrode from Prof. Ho of Physics department at ISU.
• Fabricated OPV with additive ferroelectric material to enhance exciton dissociation in polymer to improve device performance.
PUBLICATIONS
1. Y. Chen, M. Elshobaki, Z. Ye, Joong-Mok Park, M. A. Noack, Kai-Ming Ho, and S. Chaudhary, Microlens array induced light absorption enhancement in polymer solar cells, Phys. Chem. Chem. Phys., 2013, 15 (12), 4297 - 4302
2. Y. Chen, R. Mahadevapuram, K. Nalwa, S. Chaudhary, Revealing the Pr...
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