Research
inventions for future applications
While some of our group’s
research have seen applications
in industry, theory, modeling, and a bit of leap of faith allow us to
conceive devices outside of available materials and processing technology of
the time. Here are a few examples. Over time, ingenuity of the research
community has brought some of them to fruition.
1. GNRTFETs: 2008 proposal,
and a realization. Takes advantage of the unique property of 2D
materials for energy-efficient electronic switches.
2. TMDFETs: 2012 realization
in collaboration with Samsung of the first 2D material channel FETs to show
current saturation and near ideal switching.
3. SymFETs: 2012 theory,
proposal,
and a realization. Uses interlayer tunneling between 2D
materials. Related to BISFETs, and Moire
lattices in twisted 2D layers.
4. ThinTFETs: 2014 proposal,
and a realization. Uses interlayer tunneling between 2D
materials for energy-efficient electronic switches.
5. PiezoFETs: 2014 proposal
using active gate barriers in polar semiconductors.
6. GaN TFETs: 2016 proposal,
patent,
and a 2020 realization. Uses high internal fields in polar
semiconductors for energy-efficient electronic switches.
7. LEFETs: 2018 patent, and a realization. LEDs and FETs in the same device for photonic
communications and LiFi.
8. GOFETs: 2018 patent
and a realization. Gallium oxide power transistors for energy
efficient electronics.
9. UV LEDs/Lasers: 2018 patent
and realizations using quantum structures and distributed polarization doping
with GaN quantum dots in 2014 (link),
and ultrathin GaN quantum wells in 2017 (link,
link).
10. UV LEDs/Lasers: 2018 patent,
and realizations using distributed polarization doping with tunnel junctions in
2017 (link),
and distributed polarization p-doping in 2017 (link).
11. SOTFETs: 2020 collaborative proposal
of the Spin-orbit torque FET as a logic/memory hybrid device for associative
memories (link),
and materials to realize them (link).
12. FerroHEMTs: 2022 first realization.
Polar semiconductor based ferroelectric transistors for RF/mm-wave electronic
communications, digital electronics for logic, and non-volatility for memory -
all in one device!
Stay
tuned for more!