Dr. Charlie Johnson

Professor

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Biography

Charlie Johnson is a Professor in the Department of Physics and Astronomy at the University of Pennsylvania, where he has been a faculty member since 1994. He received his Ph.D. from Harvard University in 1990 and a B.S. from Stanford University in 1984. His research focuses on the development of new families of single-atomic-layer nanomaterials, enhancing scientific understanding of their physical and chemical properties, and creating device structures for practical applications. His group synthesizes monolayers of graphene, boron nitride, and various transition metal dichalcogenides, studying their electronic properties to develop advanced devices. Johnson is also interested in new chemical detection technologies for biological molecules, which are useful in disease diagnosis, security, and environmental monitoring. He has held various prestigious roles, including Director of the Nano/Bio Interface Center and has published widely in significant scientific journals.

Research Interests

Experience

Professor

2008-01-01 — Present

University of Pennsylvania • Philadelphia, PA

Teaching and research in the field of physics, focusing on nanomaterials.

Associate Professor

2001-01-01 — 2008-01-01

University of Pennsylvania • Philadelphia, PA

Conducted research and taught undergraduate and graduate courses.

Director

2014-01-01 — 2017-01-01

Nano/Bio Interface Center • University of Pennsylvania

Oversaw research initiatives at the intersection of nanotechnology and biology.

Postdoctoral Fellow

1992-01-01 — 1993-01-01

National Institute of Standards and Technology • USA

Conducted research related to standards and measurements in physics.

Postdoctoral Fellow

1990-01-01 — 1992-01-01

Delft University of Technology • Netherlands

Worked on advanced materials research.

Courses

PHYS 150/151 PHYS 170/171 PHYS 230 PHYS 351 PHYS 411/412 PHYS 518

Requirements for University of Pennsylvania

Doctorate Program
Requirements
GPA Requirement
Required:3.6
GRE General
Verbal
Required:162
Quantitative
Required:162
Overall
Required:162
GMAT
Total Score
Required:728
Overall
Required:728
TOEFL
Total
Required:115
Prerequisites
Bachelor's degree or equivalent Strong quantitative background
Application Checklist
  • Academic Transcripts
  • Letters of Recommendation (2-3)
  • Resume/CV
  • Statement of Purpose
  • Essays
Specialization Notes

Wharton Doctoral programs cover fields like Finance, Marketing, Management, and Operations, Information and Decisions.