hero image
Gregory E. Triplett, Ph.D. - VCU College of Engineering. Engineering West Hall, Room 334, Richmond, VA, US

Gregory E. Triplett, Ph.D. Gregory E. Triplett, Ph.D.

Professor, Department of Electrical and Computer Engineering | VCU College of Engineering

Engineering West Hall, Room 334, Richmond, VA, UNITED STATES

Professor Triplett's research focuses on nanomanufacturing technologies that enable improved electronic and photonic device performance.





loading image loading image Social Justice and Higher Education Panel at the SSI loading image ERN 2018 loading image





Teaching and administrative roles involve strategic planning, resource management, consensus building, and program development with a focus on continuous improvement.

As a faculty member, research activities include semiconductor device modeling and fabrication, sensor networks, and energy harvesting. Specific efforts involve the development of high-efficiency mid-infrared lasers, low-noise detectors, and memory devices. Leads a research program staffed with undergraduate and graduate students who investigate and innovate photonic materials and devices.

Specialties: Engineering education; retention strategies for electrical and computer engineering students at both the undergraduate and graduate level; semiconductor device technologies; photonics.

Industry Expertise (3)


Electrical Engineering


Areas of Expertise (5)

Optoelectronics and Photonics

Electronic Materials

Computational Intelligence

Semiconductor Manufacturing

Infrared Imaging

Accomplishments (10)

Southeastern Conference Academic Leadership Development Program Fellow

University of Missouri August 2013

Nominated for US Professor of the Year Award (professional)


Professor of the Year Nomination (campus nomination from University of Missouri)

Air Force Office of Scientific Research Young Investigator Program (YIP) Award

Air Force Office of Scientific Research August 2010

Air Force Summer Faculty Fellowship Program

American Society for Engineering Education May 2009

William T. Kemper Fellowship for Teaching Excellence

University of Missouri April 2009

Missouri Honor Award, Junior Faculty Excellence in Teaching (professional)


Teaching Award

Target HOPE Mentoring Award (professional)


Mentoring Award

Office of Naval Research Future Faculty Fellow (professional)


Future Faculty Fellowship

Boeing Graduate Fellowship (professional)


Graduate Fellowship Recipient

Leslie N. Wilson Graduate Fellowship (professional)


Graduate Fellowship Recipient

Education (3)

Georgia Institute of Technology: Ph.D., Electrical and Computer Engineering

Florida State University: M.S., Electrical Engineering

Florida Agricultural and Mechanical University: B.S., Electrical Engineering

Affiliations (7)

  • Institute of Electrical and Electronic Engineers
  • National Society of Black Engineers
  • American Society of Engineering Education
  • SPIE
  • American Association for the Advancement of Science
  • Sigma Xi
  • Phi Kappa Phi Honor Society

Event Appearances (3)

Commencement Address

VCU School of Engineering Convocation  Richmond, VA


Social Justice and Higher Education

Summer Success Institute  Hanover, Maryland, USA


Emerging Researchers National Conference 2018

ERN 2018 - Plenary Talk  Washington, DC


Research Focus (2)

Design, modeling, and manufacturing of photonic devices

Use of computational tools to control and manipulate atomic layer arrangements in multilayer photonic device structures. Using solid-source molecular beam epitaxy, deposition techniques are employed that enhance or suppress anion/action exchange and enable the control of surface structures.

Pseudomorphic growth of lattice-mismatched structures

Employed surface modifications in-vacuum for the development of heavily strained heterostructures.

Research Grants (14)

IGERT: Neutron Scattering for the Science and Engineering of the 21st Century

National Science Foundation $1,121,574


Training Grant

Electro-Optic Terminal Protection for Radar Systems

MDA $300,000


High Efficiency MIR Sources using Beam Recycling

Air Force Office of Scientific Research $559,063



Development of Photoconductive Switch

American Advanced Technology $14,970


Device manufacturing.

IED Research (Classified)

Army $5,615,000


IED research

Piezoelectric Transformer Based Neutron Generator Development

Qynergy $50,001


Neutron generator development

Nonlinear Optoelectronic Devices for MIR Applications

National Science Foundation $81,800


Strained Quantum cascade laser development

IncREaCE: Increasing Retention for Electrical and Computer Engineers

National Science Foundation $519,522


Retention program for electrical and computer engineering students

Development of Infrared Laser Array for Treatment of Spinal Cord Injury (SCI)

University of Missouri System $47,141


Use of photobiomodulation to promote axonal regeneration.

The Development of Infrared Technologies Using Quantum Cascade Lasers

University of Missouri System $30,911


Investigation of strained quantum cascade lasers for mid-infrared photon generation.

Collaborative Research: Facilitating Case Reuse During Problem Solving

National Science Foundation $357,770


Collaboration with School of Education

PTNG Neutron Source for Oil Well Logging,” Amount: $37,646

Los Alamos National Lab $37,646


Development of neutron source

FACES Career Initiation Grant

National Science Foundation (Via Georgia Tech) $20,000

Career initiation grant

Antimony-based Vertical Cavity Surface Emitting Lasers for Mid-Infrared Applications

Universal Technology Corporation $22,400


Research collaboration with WPAFB

Courses (6)

Semiconductor Device Theory

Includes derivation of density of states function, application of Fermi distribution functions, metal-semiconductor contact theory; modeling of metal-semiconductor structures, circuit modeling of transistor devices; capacitance-voltage relationships; high power and high speed devices; and device fabrication lectures.

Mid-Infrared Optoelectronic Device

Includes theory of mid-wavelength infrared lasers, mid-wavelength infrared laser design, heterostructure design, band edge and final states optimization, laser performance optimization, electronic and optical properties optimization, diode and vertical cavity surface emitting lasers in the mid-infrared.

Introduction to Optical Electronic

Includes optical properties of II-VI, III-V, and IV semiconductors; quantum band engineering; optical process in dielectric media; light emitting diodes, semiconductor lasers; energy conversion devices; and photodetector technologies.

Semiconductors and Devices

Covers crystal structures; quantum aspects of energy radiation, and matter; quantum mechanics and energy bands in solids using Schrödinger Wave equations; electronic properties of semiconductors; carrier transport phenomena; pn junction diodes; and bipolar junction and field effect transistors.

Professional Development and Responsible Conduct of Research

Professional development course intended for graduate students focuses on the skills needed for successful professional development. Topics include responsible conduct of research, professional and ethical behavior, academic integrity, career paths, effective search strategies, developing professional documents, interview preparation, building a professional network, communicating marketable skills to potential employers, and career planning.

Advanced Semiconductor Devices

Includes topics related to advanced semiconductor devices. Covers device concepts (metal-semiconductor junctions, metal-oxide-semiconductor devices), overview of quantum mechanics and carrier transport (statistics and transport phenomena), and introduces high speed/high power electronic devices including complex field effect transistor designs.

Selected Articles (8)

Effects of Lattice Relaxation on Composition and Morphology in Strained InGaAsSb Epitaxial Layers

Journal of Electronic Materials

May 2015, Volume 44, Issue 5, pp 1311-1320.

view more

Orientation-dependent pseudomorphic growth of InAs for use in lattice-mismatched mid-infrared photonic structures

Journal of Vacuum Science & Technology B 32 (2)

02C118, (2014).

view more

Pseudomorphic growth of InAs on misoriented GaAs for extending quantum cascade laser wavelength

Journal of Vacuum Science & Technology A 31 (6)

06F109, (2013).

view more

Sensitivity of Strained and Unstrained Structure Growth on GaAs (111)B

Journal of Electronic Materials Vol. 41, Issue 5

(2012), page 959-964.

view more

Reduced auger recombination in mid-infrared semiconductor lasers

Journal of Applied Physics

Vol. 110, 073108 (2011).

view more

Charge storage characteristics of ultra-small Pt nanoparticle embedded GaAs based non-volatile memory

Applied Physics Letters

Applied Physics Letters, Volume 99, Issue 7, 072104 (2011).

view more

Strained active regions in gaAs-based quantum cascade lasers

IEEE Journal of Quantum Electronics

Vol. 46, No. 12, (2010).

view more

Investigation of the photoluminescence of microporous silicalite-1 (MFI) films

Microporous and Mesoporous Materials

Sept. 2015

view more