קפיצה קוונטית מהמעבדה להייטק: ננוגבישים מוליכים למחצה לתאורה ולמסכים

אורי בנין המכון לכימיה והמרכז לננומדע ולננוטכנולוגיה

יום חדשנות טכנולוגית בתחום החומרים המתקדמים Nanocrystal Science and Technology

30 nm

Bulk Tunable colors through band size, composition & gap shape control

Synthesis – scalable manufacturing

• Cost effective scalable wet chemical synthesis applicable to different • 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, (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 – Company of the Year 2014 Award presented by Chief Scientist of Israel, Ministry of Economy A World of Displays…

Indoor Outdoor

Mobile Liquid crystal display (LCD) operation principle

Liquid Crystal Display schematic

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 Optical Switching in single nanorods under electric field

-175 Field -350

Electric Electric -175

0 50 m 2.00 2.02 2.04 2.06 m Energy (eV) Switching

Eli Rothenberg, Miri Kazes, Ehud Shaviv, Uri Banin, “Electric field induced switching of the fluorescence of single quantum rods“, Nano Letters 5, 1581 (2005). “Printed electronics”: Nanocrystal Displays, back lights,LEDs transistors, sensors

SiO2 Si

Solar energy and environmental: Biomedical apps: passive and active functions Thank you!

My Research group Nanocenter team Yissum team Merck partners Office of the Chief Scientist

Qlight Nanotech team

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