●Polarized light-emitting devices are useful particularly for LCD backlighting, image
projection, sensing and communications.
● LED chips emit light from two sources; 60% of the light is unpolarized emitted from the
top surface, and the remaining is polarized; emitted from the side surface.
● Invention incorporates a wire grid on the top of LED chip to polarize light emitted from
the top surface and a reflection well to reflect polarized light from the side-wall
surface upwards. A photon recycling structure on the bottom surface scatters light
reflected by the wire grid and reflects once again back toward the wire grid giving it a
second chance to pass through.

Advantages:
● Ratio of polarized light is greater than 70%, double that of current LEDs.
● Less energy is wasted producing scattered light, allowing more light to reach its desired
location.
● Produces better picture when used for backlight in LCD screens

Lithium-ion battery technology is unable to meet the stringent requirements of an
electric vehicle,

Li alloys with Silicon provide promising anode material since it provides a very high
theoretical charge capacity better than graphite used in Lithium (Li)-ion batteries,

The problem with Silicon is the nearly 400% volume change leading to pulverization of
the film, loss of electrical contact, and large capacity losses
Invention is a highly stress-resistant Si anode architecture providing:
1- maximum capacities over 5-times larger than the theoretical capacity of graphite,
2- easily patterned on an inexpensive conducting substrate,
3- Cr nanorods keep all the isolated silicon nanoislands electrically connected to the current
collector,
4- extremely resilient to stresses resulting from Lithium-Silicon alloying.
A scalable and facile technique for non-covalent functionalization of graphene
with 1-pyrenecarboxylic acid (PCA) that exfoliates graphene into stable
aqueous suspensions. Exfoliated graphene provides highly sensitive and
selective conductometric sensors (whose resistance rapidly changes > 10,000%
in saturated ethanol vapor), and ultracapacitors with extremely high specific
capacitance (~120 F/g), power density (~105 kW/kg) and energy density (~9.2
Wh/kg).
Advantages
- Scalable to industrial levels,
-No harsh chemicals or high temp used,
-No requirement for conversion into reduced graphene oxide.
Apparatus for communicating information across a solid wall has one or two
outside ultrasonic transducers coupled to an outside surface of the wall and
connected to a carrier generator for sending an ultrasonic carrier signal into the
wall and for receiving an output information signal from the wall. One or two
inside ultrasonic transducers are coupled to an inside surface of the wall and one
of them introduces the output information signal into the wall. When there are
two inside transducers inside the wall, one receives the carrier signal and the
second transmits the carrier after it is modulated by the output information
from the sensor. When there is one inside transducer, the output information
from the sensor is transmitted by changing the reflected or returned signal from
the inside transducer. A power harvesting
circuit inside the wall harvests power from
the carrier signal and uses it to power the
sensor.