:קפיצה קוונטית מהמעבדה להייטק ננוגבישים מוליכים למחצה לתאורה ולמסכים
יום חדשנות טכנולוגית בתחום החומרים המתקדמים
אורי בנין
המכון לכימיה והמרכז לננומדע ולננוטכנולוגיה
Nanocrystal Science and Technology
Tunable colors through
size, composition &
shape control
Bulk
band
gap
30 nm
Synthesis – scalable manufacturing
• Cost effective scalable wet chemical
synthesis applicable to different
Semiconductors
• Chemically processable through
surface providing flexible
manipulations in solutions, plastic
films, electrodes
Qlight Nanotech – Overview
• A Hebrew University spin-off company founded in 2009
• Based on inventions from professor Uri Banin lab
• Strategic cooperation with Merck KGaA, fully owned by Merck
since summer 2015
• Labs located in Jerusalem, Israel (in the Safra Campus)
• Team of highly qualified scientists
Qlight develops innovative nanocrystal enabled products
for flat panel displays and solid state lighting markets
The story of Qlight Nanotech:
From Bright Idea to Successful Company
• 2001 – Professor Uri Banin research on Nanorods
• 2008 – Nofar project of OCS on Nanorods switchable display
• 2009 – Qlight established as a company on campus
• 2012 – First equity investment by Merck
• 2013 – Second equity investment by Merck
• 2014 – Blue-Chip JDA partners
• 2015 – Qlight acquired by Merck
Qlight Nanotech – Nanotechnology Company of the Year 2014
Award presented by Chief Scientist of Israel, Ministry of Economy
Liquid Crystal Display schematic
Liquid crystal display (LCD) operation principle
Challenges:
• Better colors
• Low energy consumption & long battery life
ABEF: Active Brightness Enhancement Film;
The ABEF converts blue LED light into RGB light.
Illustration of ABEF film: quantum rods
are excited by blue LEDs to give R-G-B light
ABEF:
Outstanding Display Colors – OLED like colors with LCD
• Highly saturated Red, Green and Blue
colors are obtained due to the narrow
emission bands.
• Color gamut increases significantly.
Gamut can be tuned to cover NTSC, sRGB
and beyond.
• Energy saving
Regular display With ABEF
50mm
Optical Switching in single nanorods
under electric field
Ele
ctr
ic F
ield
0
-175
-350
-175
2.00 2.02 2.04 2.06Energy (eV)Switching
Eli Rothenberg, Miri Kazes, Ehud Shaviv, Uri Banin, “Electric field induced
switching of the fluorescence of single semiconductor quantum rods“, Nano
Letters 5, 1581 (2005).
Displays, back lights,LEDs
Solar energy and environmental:
Photocatalysis
Biomedical apps: passive and
active functions
“Printed electronics”: Nanocrystal
transistors, sensors
SiSiO2